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Fall Weather at Dongsha Island Airport Taiwan

Daily high temperatures decrease by 11°F, from 88°F to 77°F, rarely falling below 73°F or exceeding 90°F.

Daily low temperatures decrease by 9°F, from 82°F to 73°F, rarely falling below 69°F or exceeding 83°F.

For reference, on July 11, the hottest day of the year, temperatures at Dongsha Island Airport typically range from 82°F to 89°F, while on January 23, the coldest day of the year, they range from 68°F to 73°F.

Average High and Low Temperature in the Fall at Dongsha Island Airport

Average High and Low Temperature in the Fall at Dongsha Island AirportSepOctNov65°F65°F70°F70°F75°F75°F80°F80°F85°F85°F90°F90°F95°F95°F100°F100°F105°F105°FSummerWinterSep 188°FSep 188°F82°F82°FNov 3077°FNov 3077°F73°F73°FOct 186°FOct 186°F80°F80°FNov 181°FNov 181°F77°F77°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.

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

Average Hourly Temperature in the Fall at Dongsha Island Airport

Average Hourly Temperature in the Fall at Dongsha Island AirportSepOctNov12 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 AMSummerWinterNowNowcomfortablewarmhot
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.

Key West, Florida, United States (9,081 miles away) is the far-away foreign place with temperatures most similar to Dongsha Island Airport (view comparison).

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The fall at Dongsha Island Airport experiences very rapidly decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 80% to 54%.

The clearest day of the fall is November 30, with clear, mostly clear, or partly cloudy conditions 46% of the time.

For reference, on June 6, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 89%, while on March 8, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 49%.

Cloud Cover Categories in the Fall at Dongsha Island Airport

Cloud Cover Categories in the Fall at Dongsha Island AirportSepOctNov0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%SummerWinterSep 120%Sep 120%Nov 3046%Nov 3046%Oct 133%Oct 133%Nov 141%Nov 141%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.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. At Dongsha Island Airport, the chance of a wet day over the course of the fall is very rapidly decreasing, starting the season at 53% and ending it at 15%.

For reference, the year's highest daily chance of a wet day is 57% on August 18, and its lowest chance is 7% on February 2.

Probability of Precipitation in the Fall at Dongsha Island Airport

Probability of Precipitation in the Fall at Dongsha Island AirportSepOctNov0%0%5%5%10%10%15%15%20%20%25%25%30%30%35%35%40%40%45%45%50%50%55%55%60%60%SummerWinterSep 153%Sep 153%Nov 3015%Nov 3015%Oct 142%Oct 142%Nov 127%Nov 127%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).

Rainfall

To show variation within the season and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day.

The average sliding 31-day rainfall during the fall at Dongsha Island Airport is very rapidly decreasing, starting the season at 7.8 inches, when it rarely exceeds 13.1 inches or falls below 3.4 inches, and ending the season at 1.3 inches, when it rarely exceeds 3.1 inches or falls below 0.1 inches.

Average Monthly Rainfall in the Fall at Dongsha Island Airport

Average Monthly Rainfall in the Fall at Dongsha Island AirportSepOctNov0 in0 in2 in2 in4 in4 in6 in6 in8 in8 in10 in10 in12 in12 in14 in14 inSummerWinterSep 17.8 inSep 17.8 inNov 301.3 inNov 301.3 inOct 15.8 inOct 15.8 inNov 13.3 inNov 13.3 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.

Over the course of the fall at Dongsha Island Airport, the length of the day is rapidly decreasing. From the start to the end of the season, the length of the day decreases by 1 hour, 33 minutes, implying an average daily decrease of 1 minute, 2 seconds, and weekly decrease of 7 minutes, 14 seconds.

The shortest day of the fall is November 30, with 10 hours, 59 minutes of daylight and the longest day is September 1, with 12 hours, 32 minutes of daylight.

Hours of Daylight and Twilight in the Fall at Dongsha Island Airport

Hours of Daylight and Twilight in the Fall at Dongsha Island AirportSepOctNov0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrSummerWinterSep 2212 hr, 7 minSep 2212 hr, 7 minnightnightdaydayNov 3010 hr, 59 minNov 3010 hr, 59 minNov 111 hr, 22 minNov 111 hr, 22 minNowNow
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.

The earliest sunrise of the fall at Dongsha Island Airport is 5:57 AM on September 1 and the latest sunrise is 35 minutes later at 6:32 AM on November 30.

The latest sunset is 6:28 PM on September 1 and the earliest sunset is 58 minutes earlier at 5:30 PM on November 26.

Daylight saving time is not observed at Dongsha Island Airport during 2024.

For reference, on June 20, the longest day of the year, the Sun rises at 5:33 AM and sets 13 hours, 23 minutes later, at 6:56 PM, while on December 21, the shortest day of the year, it rises at 6:44 AM and sets 10 hours, 53 minutes later, at 5:37 PM.

Sunrise & Sunset with Twilight in the Fall at Dongsha Island Airport

Sunrise & Sunset with Twilight in the Fall at Dongsha Island AirportSepOctNov12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMSummerWinter5:57 AM5:57 AMSep 16:28 PMSep 16:28 PM6:29 AM6:29 AMNov 265:30 PMNov 265:30 PM6:04 AM6:04 AMOct 16:00 PMOct 16:00 PM6:15 AM6:15 AMNov 15:37 PMNov 15:37 PMSolarMidnightSolarMidnightSolarNoonSunriseSunsetNowNow
The solar day in the fall. 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 in the Fall at Dongsha Island Airport

Solar Elevation and Azimuth in the Fall at Dongsha Island AirportSepOctNov12 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 AMSummerWinter0010202030304050600010102030304040506070NowNow
northeastsouthwest
Solar elevation and azimuth in the the fall of 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 the fall of 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. The label associated with each bar indicates the date and time that the phase is obtained, and the companion time labels indicate the rise and set times of the Moon for the nearest time interval in which the moon is above the horizon.

Moon Rise, Set & Phases in the Fall at Dongsha Island Airport

Moon Rise, Set & Phases in the Fall at Dongsha Island AirportSepOctNov12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMSummerWinterAug 47:14 PMAug 47:14 PMAug 202:26 AMAug 202:26 AMSep 39:56 AMSep 39:56 AMSep 1810:35 AMSep 1810:35 AMOct 32:50 AMOct 32:50 AMOct 177:27 PMOct 177:27 PMNov 18:48 PMNov 18:48 PMNov 165:29 AMNov 165:29 AMDec 12:22 PMDec 12:22 PMDec 155:02 PMDec 155:02 PMDec 316:28 AMDec 316:28 AM6:57 PM6:57 PM6:31 PM6:31 PM6:06 AM6:06 AM5:53 AM5:53 AM5:45 PM5:45 PM5:52 AM5:52 AM6:14 AM6:14 AM6:14 PM6:14 PM5:35 PM5:35 PM6:42 AM6:42 AM5:49 AM5:49 AM5:20 PM5:20 PM4:52 PM4:52 PM6:32 AM6:32 AM6:24 AM6:24 AM5:21 PM5:21 PM5:21 PM5:21 PM7:30 AM7:30 AM5:59 PM5:59 PM
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.

The chance that a given day will be muggy at Dongsha Island Airport is very rapidly decreasing during the fall, falling from 100% to 77% over the course of the season.

For reference, on June 9, the muggiest day of the year, there are muggy conditions 100% of the time, while on January 15, the least muggy day of the year, there are muggy conditions 49% of the time.

Humidity Comfort Levels in the Fall at Dongsha Island Airport

Humidity Comfort Levels in the Fall at Dongsha Island AirportSepOctNov0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%SummerWinterSep 1100%Sep 1100%Nov 3077%Nov 3077%Oct 1100%Oct 1100%Nov 197%Nov 197%NowNowmiserablemiserableoppressiveoppressivemuggymuggyhumidhumidcomfortablecomfortable
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.

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 Dongsha Island Airport is very rapidly increasing during the fall, increasing from 12.3 miles per hour to 21.8 miles per hour over the course of the season.

For reference, on December 5, the windiest day of the year, the daily average wind speed is 21.9 miles per hour, while on April 30, the calmest day of the year, the daily average wind speed is 10.7 miles per hour.

Average Wind Speed in the Fall at Dongsha Island Airport

Average Wind Speed in the Fall at Dongsha Island AirportSepOctNov0 mph0 mph5 mph5 mph10 mph10 mph15 mph15 mph20 mph20 mph25 mph25 mphSummerWinterSep 112.3 mphSep 112.3 mphNov 3021.8 mphNov 3021.8 mphOct 116.4 mphOct 116.4 mphNov 120.5 mphNov 120.5 mphNowNow
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The wind direction at Dongsha Island Airport during the fall is predominantly out of the east from September 1 to November 20 and the north from November 20 to November 30.

Wind Direction in the Fall at Dongsha Island Airport

Wind Direction in the Fall at Dongsha Island AirportSENSepOctNov0%100%20%80%40%60%60%40%80%20%100%0%SummerWinterNowNowwestsoutheastnorth
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).

Dongsha Island Airport 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 surface water temperature at Dongsha Island Airport is decreasing during the fall, falling by 7°F, from 84°F to 77°F, over the course of the season.

Average Water Temperature in the Fall at Dongsha Island Airport

Average Water Temperature in the Fall at Dongsha Island AirportSepOctNov72°F72°F74°F74°F76°F76°F78°F78°F80°F80°F82°F82°F84°F84°F86°F86°FSummerWinterSep 184°FSep 184°FNov 3077°FNov 3077°FOct 182°FOct 182°FNov 180°FNov 180°FNowNow
The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.

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 Dongsha Island Airport 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 in the Fall at Dongsha Island Airport

Time Spent in Various Temperature Bands and the Growing Season in the Fall at Dongsha Island AirportSepOctNov0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%SummerWinter100%Oct 16100%Oct 16NowNowcomfortablewarmhotcool
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.

The average accumulated growing degree days at Dongsha Island Airport are very rapidly increasing during the fall, increasing by 2,704°F, from 7,002°F to 9,706°F, over the course of the season.

Growing Degree Days in the Fall at Dongsha Island Airport

Growing Degree Days in the Fall at Dongsha Island AirportSepOctNov7,000°F7,000°F7,500°F7,500°F8,000°F8,000°F8,500°F8,500°F9,000°F9,000°F9,500°F9,500°FSummerWinterSep 17,002°FSep 17,002°FNov 309,706°FNov 309,706°FOct 17,992°FOct 17,992°FNov 18,935°FNov 18,935°FNowNow
The average growing degree days accumulated over the course of the fall, 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 at Dongsha Island Airport is gradually decreasing during the fall, falling by 0.8 kWh, from 4.6 kWh to 3.8 kWh, over the course of the season.

The highest average daily incident shortwave solar energy during the fall is 5.0 kWh on September 25.

Average Daily Incident Shortwave Solar Energy in the Fall at Dongsha Island Airport

Average Daily Incident Shortwave Solar Energy in the Fall at Dongsha Island AirportSepOctNov0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWhSummerWinterSep 255.0 kWhSep 255.0 kWhSep 14.6 kWhSep 14.6 kWhNov 303.8 kWhNov 303.8 kWhNov 14.4 kWhNov 14.4 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.

For the purposes of this report, the geographical coordinates of Dongsha Island Airport are 20.705 deg latitude, 116.728 deg longitude, and 7 ft elevation.

The topography within 2 miles of Dongsha Island Airport is essentially flat, with a maximum elevation change of 26 feet and an average elevation above sea level of 0 feet. Within 10 miles is also essentially flat (26 feet). Within 50 miles is also essentially flat (26 feet).

The area within 2 miles of Dongsha Island Airport is covered by water (100%), within 10 miles by water (100%), and within 50 miles by water (100%).

This report illustrates the typical weather at Dongsha Island Airport, 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

Dongsha Island Airport 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.

There are no other weather stations in our network within 200 kilometers of this location. Consequently, in the case of missing or erroneous measurements from this station, we fall back on NASA's MERRA-2 modern-era reanalysis , adjusted according to typical seasonal and diurnal differences between this station and the wide-area MERRA-2 reconstructed values.

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.

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