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Climate and Average Weather Year Round at Kangshan Tw-Afb Taiwan

At Kangshan Tw-Afb, the wet season is hot, oppressive, and overcast and the dry season is warm, humid, and mostly clear. Over the course of the year, the temperature typically varies from 57°F to 90°F and is rarely below 51°F or above 93°F.

Based on the tourism score, the best times of year to visit Kangshan Tw-Afb for warm-weather activities are from early February to mid April and from mid October to early January.

Climate at Kangshan Tw-Afb

comfortablewarmhotwarmJanFebMarAprMayJunJulAugSepOctNovDecNowNow74%74%17%17%overcastclearprecipitation: 12.9 inprecipitation: 12.9 in0.6 in0.6 inmuggy: 100%muggy: 100%6%6%tourism score: 7.6tourism score: 7.62.62.6
Kangshan Tw-Afb weather by month. Click on each chart for more information.

The hot season lasts for 4.8 months, from May 13 to October 6, with an average daily high temperature above 86°F. The hottest month of the year at Kangshan Tw-Afb is July, with an average high of 89°F and low of 79°F.

The cool season lasts for 2.7 months, from December 9 to February 28, with an average daily high temperature below 77°F. The coldest month of the year at Kangshan Tw-Afb is January, with an average low of 57°F and high of 74°F.

Average High and Low Temperature at Kangshan Tw-Afb

Average High and Low Temperature at Kangshan Tw-AfbhotcoolcoolJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F100°F100°F110°F110°FJan 2074°FJan 2074°FJul 890°FJul 890°F57°F57°F79°F79°FMay 1386°FMay 1386°FOct 686°FOct 686°FDec 977°FDec 977°FFeb 2877°FFeb 2877°F75°F75°F74°F74°F61°F61°F61°F61°FNowNow
The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The thin dotted lines are the corresponding average perceived temperatures.
AverageJanFebMarAprMayJunJulAugSepOctNovDec
High 74°F75°F79°F83°F86°F88°F89°F89°F88°F85°F81°F76°F
Temp. 64°F66°F71°F76°F80°F83°F84°F83°F82°F79°F73°F67°F
Low 57°F59°F64°F70°F75°F78°F79°F78°F76°F72°F66°F60°F

The figure below shows you a compact characterization of the entire year of hourly average temperatures. The horizontal axis is the day of the year, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.

Average Hourly Temperature at Kangshan Tw-Afb

Average Hourly Temperature at Kangshan Tw-AfbJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMNowNowcoolcoolcoolcoolcomfortablecomfortablewarmhot
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.

Tampico, Mexico (8,412 miles away); Weston, Florida, United States (8,797 miles); and Townsville, Queensland, Australia (3,417 miles) are the far-away foreign places with temperatures most similar to Kangshan Tw-Afb (view comparison).

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At Kangshan Tw-Afb, the average percentage of the sky covered by clouds experiences extreme seasonal variation over the course of the year.

The clearer part of the year at Kangshan Tw-Afb begins around October 4 and lasts for 6.7 months, ending around April 25.

The clearest month of the year at Kangshan Tw-Afb is January, during which on average the sky is clear, mostly clear, or partly cloudy 72% of the time.

The cloudier part of the year begins around April 25 and lasts for 5.3 months, ending around October 4.

The cloudiest month of the year at Kangshan Tw-Afb is June, during which on average the sky is overcast or mostly cloudy 82% of the time.

Cloud Cover Categories at Kangshan Tw-Afb

Cloud Cover Categories at Kangshan Tw-AfbclearerclearercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Jan 1674%Jan 1674%Jun 817%Jun 817%Oct 445%Oct 445%Apr 2546%Apr 2546%NowNowclearmostly clearpartly cloudymostly cloudyovercast
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds.
FractionJanFebMarAprMayJunJulAugSepOctNovDec
Cloudier 28%31%33%47%70%82%78%79%67%47%37%29%
Clearer 72%69%67%53%30%18%22%21%33%53%63%71%

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days at Kangshan Tw-Afb varies significantly throughout the year.

The wetter season lasts 4.5 months, from May 7 to September 22, with a greater than 30% chance of a given day being a wet day. The month with the most wet days at Kangshan Tw-Afb is August, with an average of 15.5 days with at least 0.04 inches of precipitation.

The drier season lasts 7.5 months, from September 22 to May 7. The month with the fewest wet days at Kangshan Tw-Afb is December, with an average of 2.3 days with at least 0.04 inches of precipitation.

Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. The month with the most days of rain alone at Kangshan Tw-Afb is August, with an average of 15.5 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 52% on August 22.

Daily Chance of Precipitation at Kangshan Tw-Afb

Daily Chance of Precipitation at Kangshan Tw-AfbwetdrydryJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Aug 2252%Aug 2252%Nov 267%Nov 267%May 730%May 730%Sep 2230%Sep 2230%NowNowrain
The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day).
Days ofJanFebMarAprMayJunJulAugSepOctNovDec
Rain 2.5d3.2d3.5d5.7d11.1d13.0d13.3d15.5d10.6d4.1d2.4d2.3d

To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. Kangshan Tw-Afb experiences extreme seasonal variation in monthly rainfall.

Rain falls throughout the year at Kangshan Tw-Afb. The month with the most rain at Kangshan Tw-Afb is August, with an average rainfall of 12.5 inches.

The month with the least rain at Kangshan Tw-Afb is December, with an average rainfall of 0.6 inches.

Average Monthly Rainfall at Kangshan Tw-Afb

Average Monthly Rainfall at Kangshan Tw-AfbJanFebMarAprMayJunJulAugSepOctNovDec0 in0 in5 in5 in10 in10 in15 in15 in20 in20 in25 in25 inAug 812.9 inAug 812.9 inDec 260.6 inDec 260.6 inJun 1010.9 inJun 1010.9 inNowNow
The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average snowfall.
JanFebMarAprMayJunJulAugSepOctNovDec
Rainfall 0.7″0.9″1.3″2.5″6.9″10.6″10.3″12.5″7.6″2.3″1.1″0.6″

The length of the day at Kangshan Tw-Afb varies over the course of the year. In 2024, the shortest day is December 21, with 10 hours, 44 minutes of daylight; the longest day is June 21, with 13 hours, 32 minutes of daylight.

Hours of Daylight and Twilight at Kangshan Tw-Afb

Hours of Daylight and Twilight at Kangshan Tw-AfbJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 6 minMar 2012 hr, 6 minMar 2013 hr, 32 minJun 2113 hr, 32 minJun 2112 hr, 8 minSep 2212 hr, 8 minSep 2210 hr, 44 minDec 2110 hr, 44 minDec 21nightnightdayNowNow
The number of hours during which the Sun is visible (black line). From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night.
Hours ofJanFebMarAprMayJunJulAugSepOctNovDec
Daylight 10.9h11.4h12.0h12.7h13.2h13.5h13.4h12.9h12.3h11.6h11.1h10.8h

The earliest sunrise is at 5:13 AM on June 7, and the latest sunrise is 1 hour, 28 minutes later at 6:41 AM on January 16. The earliest sunset is at 5:13 PM on November 28, and the latest sunset is 1 hour, 35 minutes later at 6:48 PM on July 3.

Daylight saving time (DST) is not observed at Kangshan Tw-Afb during 2024.

Sunrise & Sunset with Twilight at Kangshan Tw-Afb

Sunrise & Sunset with Twilight at Kangshan Tw-AfbJanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJun 75:13 AMJun 75:13 AM6:48 PMJul 36:48 PMJul 3Nov 285:13 PMNov 285:13 PM6:41 AMJan 166:41 AMJan 16daynightnightSolarMidnightSolarMidnightSolarNoonSunriseSunset
The solar day over the course of the year 2024. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray.

The figure below presents a compact representation of the sun's elevation (the angle of the sun above the horizon) and azimuth (its compass bearing) for every hour of every day in the reporting period. The horizontal axis is the day of the year and the vertical axis is the hour of the day. For a given day and hour of that day, the background color indicates the azimuth of the sun at that moment. The black isolines are contours of constant solar elevation.

Solar Elevation and Azimuth at Kangshan Tw-Afb

Solar Elevation and Azimuth at Kangshan Tw-AfbJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AM000010101010202020203030303040404040505050606070708000001010101020202020303030304040404050505060606070708044NowNow
northeastsouthwest
Solar elevation and azimuth over the course of the year 2024. The black lines are lines of constant solar elevation (the angle of the sun above the horizon, in degrees). The background color fills indicate the azimuth (the compass bearing) of the sun. The lightly tinted areas at the boundaries of the cardinal compass points indicate the implied intermediate directions (northeast, southeast, southwest, and northwest).

The figure below presents a compact representation of key lunar data for 2024. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases.

Moon Rise, Set & Phases at Kangshan Tw-Afb

The time in which the moon is above the horizon (light blue area), with new moons (dark gray lines) and full moons (blue lines) indicated. The shaded overlays indicate night and civil twilight.

We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.

Kangshan Tw-Afb experiences extreme seasonal variation in the perceived humidity.

The muggier period of the year lasts for 9.0 months, from March 4 to December 5, during which time the comfort level is muggy, oppressive, or miserable at least 30% of the time. The month with the most muggy days at Kangshan Tw-Afb is July, with 31.0 days that are muggy or worse.

The month with the fewest muggy days at Kangshan Tw-Afb is January, with 2.3 days that are muggy or worse.

Humidity Comfort Levels at Kangshan Tw-Afb

Humidity Comfort Levels at Kangshan Tw-AfbmuggyJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Jan 146%Jan 146%100%Jul 20100%Jul 20Mar 430%Mar 430%Dec 530%Dec 530%NowNowmiserablemiserablecomfortablecomfortabledrydryoppressiveoppressivemuggymuggy
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The percentage of time spent at various humidity comfort levels, categorized by dew point.
JanFebMarAprMayJunJulAugSepOctNovDec
Muggy days 2.3d4.6d13.9d24.7d30.6d30.0d31.0d31.0d29.8d28.4d18.3d5.7d

This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.

The average hourly wind speed at Kangshan Tw-Afb experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 2.5 months, from June 7 to August 24, with average wind speeds of more than 7.9 miles per hour. The windiest month of the year at Kangshan Tw-Afb is July, with an average hourly wind speed of 8.9 miles per hour.

The calmer time of year lasts for 9.5 months, from August 24 to June 7. The calmest month of the year at Kangshan Tw-Afb is October, with an average hourly wind speed of 6.6 miles per hour.

Average Wind Speed at Kangshan Tw-Afb

Average Wind Speed at Kangshan Tw-AfbwindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mph16 mph16 mphJul 49.3 mphJul 49.3 mphApr 306.5 mphApr 306.5 mphAug 247.9 mphAug 247.9 mphNowNow
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.
JanFebMarAprMayJunJulAugSepOctNovDec
Wind Speed (mph) 8.98.57.66.96.88.58.98.27.36.67.58.5

The predominant average hourly wind direction at Kangshan Tw-Afb varies throughout the year.

The wind is most often from the south for 3.2 months, from May 9 to August 14 and for 1.9 weeks, from August 22 to September 4, with a peak percentage of 58% on June 28. The wind is most often from the west for 1.1 weeks, from August 14 to August 22, with a peak percentage of 38% on August 15. The wind is most often from the north for 8.2 months, from September 4 to May 9, with a peak percentage of 79% on January 1.

Wind Direction at Kangshan Tw-Afb

Wind Direction at Kangshan Tw-AfbNSSNJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%NowNowwestsouthnorth
northeastsouthwest
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than 1.0 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

Kangshan Tw-Afb is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.

The average water temperature experiences some seasonal variation over the course of the year.

The time of year with warmer water lasts for 4.1 months, from May 31 to October 3, with an average temperature above 82°F. The month of the year at Kangshan Tw-Afb with the warmest water is July, with an average temperature of 84°F.

The time of year with cooler water lasts for 3.2 months, from December 14 to March 20, with an average temperature below 76°F. The month of the year at Kangshan Tw-Afb with the coolest water is February, with an average temperature of 74°F.

Average Water Temperature at Kangshan Tw-Afb

Average Water Temperature at Kangshan Tw-AfbwarmcoolJanFebMarAprMayJunJulAugSepOctNovDec70°F70°F72°F72°F74°F74°F76°F76°F78°F78°F80°F80°F82°F82°F84°F84°F86°F86°F88°F88°FJul 1484°FJul 1484°F74°FJan 2674°FJan 26May 3182°FMay 3182°FOct 382°FOct 382°FDec 1476°FDec 1476°FMar 2076°FMar 2076°FNowNow
The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.
WaterJanFebMarAprMayJunJulAugSepOctNovDec
Temperature 74°F74°F76°F78°F81°F83°F84°F84°F83°F81°F79°F76°F

To characterize how pleasant the weather is at Kangshan Tw-Afb throughout the year, we compute two travel scores.

The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Based on this score, the best times of year to visit Kangshan Tw-Afb for general outdoor tourist activities are from early February to mid April and from mid October to early January, with a peak score in the third week of November.

Tourism Score at Kangshan Tw-Afb

Tourism Score at Kangshan Tw-Afbbest timebest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810107.67.62.62.67.57.56.76.7NowNowtemperaturetemperature cloudscloudsprecipitationprecipitationtourism score
The tourism score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best times of year to visit Kangshan Tw-Afb for hot-weather activities are from mid April to early May and from late September to early November, with a peak score in the second week of October.

Beach/Pool Score at Kangshan Tw-Afb

Beach/Pool Score at Kangshan Tw-AfbJanFebMarAprMayJunJulAugSepOctNovDec002244668810106.96.91.51.56.36.34.14.1NowNowtemperaturetemperature cloudscloudsprecipitationprecipitationbeach/pool score
The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

Methodology

For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed.

Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies.

Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more.

Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter.

Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter.

Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

Temperatures at Kangshan Tw-Afb are sufficiently warm year round that it is not entirely meaningful to discuss the growing season in these terms. We nevertheless include the chart below as an illustration of the distribution of temperatures experienced throughout the year.

Time Spent in Various Temperature Bands and the Growing Season at Kangshan Tw-Afb

Time Spent in Various Temperature Bands and the Growing Season at Kangshan Tw-AfbJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%100%Jan 1100%Jan 1100%Jul 2100%Jul 2NowNowcoldcoolcomfortablewarmhot
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The percentage of time spent in various temperature bands. The black line is the percentage chance that a given day is within the growing season.

Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. In this report, we use a base of 50°F and a cap of 86°F.

Growing Degree Days at Kangshan Tw-Afb

Growing Degree Days at Kangshan Tw-AfbJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F1,000°F1,000°F2,000°F2,000°F3,000°F3,000°F4,000°F4,000°F5,000°F5,000°F6,000°F6,000°F7,000°F7,000°F8,000°F8,000°F9,000°F9,000°FJan 790°FJan 790°FApr 101,800°FApr 101,800°FDec 319,259°FDec 319,259°FNowNow
The average growing degree days accumulated over the course of the year, with 25th to 75th and 10th to 90th percentile bands.

This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.

The average daily incident shortwave solar energy experiences some seasonal variation over the course of the year.

The brighter period of the year lasts for 2.3 months, from March 15 to May 26, with an average daily incident shortwave energy per square meter above 5.5 kWh. The brightest month of the year at Kangshan Tw-Afb is April, with an average of 5.9 kWh.

The darker period of the year lasts for 2.2 months, from November 20 to January 27, with an average daily incident shortwave energy per square meter below 4.2 kWh. The darkest month of the year at Kangshan Tw-Afb is December, with an average of 3.9 kWh.

Average Daily Incident Shortwave Solar Energy at Kangshan Tw-Afb

Average Daily Incident Shortwave Solar Energy at Kangshan Tw-AfbbrightdarkdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWhApr 106.0 kWhApr 106.0 kWhDec 183.8 kWhDec 183.8 kWhMay 265.5 kWhMay 265.5 kWhJan 274.2 kWhJan 274.2 kWhNowNow
The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.
JanFebMarAprMayJunJulAugSepOctNovDec
Solar Energy (kWh) 4.14.75.55.95.75.35.34.95.04.94.33.9

For the purposes of this report, the geographical coordinates of Kangshan Tw-Afb are 22.783 deg latitude, 120.263 deg longitude, and 26 ft elevation.

The topography within 2 miles of Kangshan Tw-Afb contains only modest variations in elevation, with a maximum elevation change of 233 feet and an average elevation above sea level of 29 feet. Within 10 miles contains only modest variations in elevation (1,217 feet). Within 50 miles contains very significant variations in elevation (10,804 feet).

The area within 2 miles of Kangshan Tw-Afb is covered by artificial surfaces (65%) and water (14%), within 10 miles by water (59%) and artificial surfaces (14%), and within 50 miles by water (71%) and trees (19%).

This report illustrates the typical weather at Kangshan Tw-Afb, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

Temperature and Dew Point

Kangshan Tw-Afb has a weather station that reported reliably enough during the analysis period that we have included it in our network. When available, historical temperature and dew point measurements are taken directly from this weather station. These records are obtained from NOAA's Integrated Surface Hourly data set, falling back on ICAO METAR records as required.

In the case of missing or erroneous measurements from this station, we fall back on records from nearby stations, adjusted according to typical seasonal and diurnal intra-station differences. For a given day of the year and hour of the day, the fallback station is selected to minimize the prediction error over the years for which there are measurements for both stations.

The stations on which we may fall back include but are not limited to Tainan Airport, Kaohsiung International Airport, Pingtung South Air Force Base, Pingtung North Air Force Base, Chiayi Airport, Hengchun Airport, Chihhang Tw-Afb, and Magong Airport.

Other Data

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Algorithms 2nd Edition , by Jean Meeus.

All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.

Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.

Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.

Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .

Time zones for airports and weather stations are provided by AskGeo.com .

Maps are © OpenStreetMap contributors.

Disclaimer

The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.

We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.

We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.

Please review our full terms contained on our Terms of Service page.