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Climate and Average Weather Year Round in Simpang Indonesia

The climate in Simpang is warm, oppressive, and overcast. Over the course of the year, the temperature typically varies from 71°F to 86°F and is rarely below 67°F or above 89°F.

Based on the tourism score, the best time of year to visit Simpang for warm-weather activities is from late June to mid September.

Climate in Simpang

hotwarmhotJanFebMarAprMayJunJulAugSepOctNovDecNowNow40%40%13%13%overcastprecipitation: 11.6 inprecipitation: 11.6 in1.8 in1.8 inmuggy: 100%muggy: 100%99%99%tourism score: 6.6tourism score: 6.63.73.7
Simpang weather by month. Click on each chart for more information.

The temperature in Simpang varies so little throughout the year that it is not entirely meaningful to discuss hot and cold seasons.

Average High and Low Temperature in Simpang

Average High and Low Temperature in SimpangJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F100°F100°FAug 981°FAug 981°FFeb 2486°FFeb 2486°F71°F71°F73°F73°FDec 1985°FDec 1985°FApr 2985°FApr 2985°FJul 282°FJul 282°FSep 2882°FSep 2882°F73°F73°F74°F74°F71°F71°F72°F72°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 86°F86°F86°F86°F85°F83°F82°F81°F82°F83°F84°F85°F
Temp. 78°F78°F79°F79°F79°F77°F76°F75°F76°F77°F78°F78°F
Low 73°F73°F73°F73°F73°F72°F71°F71°F72°F73°F73°F73°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 in Simpang

Average Hourly Temperature in SimpangJanFebMarAprMayJunJulAugSepOctNovDec12 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 AMNowNowcomfortablecomfortablewarmwarmhot
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.

Guayaquil, Ecuador (11,574 miles away) and Moanda, Gabon (6,547 miles) are the far-away foreign places with temperatures most similar to Simpang (view comparison).

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In Simpang, the average percentage of the sky covered by clouds experiences significant seasonal variation over the course of the year.

The clearer part of the year in Simpang begins around May 24 and lasts for 4.5 months, ending around October 7.

The clearest month of the year in Simpang is August, during which on average the sky is clear, mostly clear, or partly cloudy 38% of the time.

The cloudier part of the year begins around October 7 and lasts for 7.5 months, ending around May 24.

The cloudiest month of the year in Simpang is February, during which on average the sky is overcast or mostly cloudy 86% of the time.

Cloud Cover Categories in Simpang

Cloud Cover Categories in SimpangclearercloudiercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Jul 3140%Jul 3140%Feb 313%Feb 313%May 2426%May 2426%Oct 726%Oct 726%NowNowmostly clearpartly cloudymostly cloudyovercastclear
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 86%86%83%82%75%66%63%62%68%76%84%85%
Clearer 14%14%17%18%25%34%37%38%32%24%16%15%

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

The wetter season lasts 7.0 months, from October 14 to May 15, with a greater than 45% chance of a given day being a wet day. The month with the most wet days in Simpang is December, with an average of 22.6 days with at least 0.04 inches of precipitation.

The drier season lasts 5.0 months, from May 15 to October 14. The month with the fewest wet days in Simpang is August, with an average of 5.2 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 in Simpang is December, with an average of 22.6 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 75% on November 28.

Daily Chance of Precipitation in Simpang

Daily Chance of Precipitation in SimpangwetwetdryJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Nov 2875%Nov 2875%Aug 1015%Aug 1015%Oct 1445%Oct 1445%May 1545%May 1545%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 22.2d20.7d21.3d18.6d13.9d9.6d6.9d5.2d7.9d14.5d21.1d22.6d

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. Simpang experiences extreme seasonal variation in monthly rainfall.

Rain falls throughout the year in Simpang. The month with the most rain in Simpang is December, with an average rainfall of 11.2 inches.

The month with the least rain in Simpang is August, with an average rainfall of 1.8 inches.

Average Monthly Rainfall in Simpang

Average Monthly Rainfall in SimpangJanFebMarAprMayJunJulAugSepOctNovDec0 in0 in5 in5 in10 in10 in15 in15 in20 in20 inNov 3011.6 inNov 3011.6 inAug 121.8 inAug 121.8 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 10.2″10.0″9.8″8.4″5.5″3.7″2.5″1.8″3.3″6.7″11.0″11.2″

The length of the day in Simpang does not vary substantially over the course of the year, staying within 34 minutes of 12 hours throughout. In 2024, the shortest day is June 21, with 11 hours, 41 minutes of daylight; the longest day is December 21, with 12 hours, 34 minutes of daylight.

Hours of Daylight and Twilight in Simpang

Hours of Daylight and Twilight in SimpangJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 6 minSep 2212 hr, 6 minSep 2212 hr, 34 minDec 2112 hr, 34 minDec 2112 hr, 7 minMar 2012 hr, 7 minMar 2011 hr, 41 minJun 2111 hr, 41 minJun 21daydaynightNowNow
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 12.5h12.3h12.1h11.9h11.8h11.7h11.7h11.9h12.1h12.3h12.5h12.6h

The earliest sunrise is at 5:18 AM on November 14, and the latest sunrise is 44 minutes later at 6:02 AM on July 16. The earliest sunset is at 5:36 PM on May 25, and the latest sunset is 38 minutes later at 6:14 PM on January 29.

Daylight saving time (DST) is not observed in Simpang during 2024.

Sunrise & Sunset with Twilight in Simpang

Sunrise & Sunset with Twilight in SimpangJanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMNov 145:18 AMNov 145:18 AM6:14 PMJan 296:14 PMJan 29May 255:36 PMMay 255:36 PM6:02 AMJul 166:02 AMJul 16daynightSolarMidnightSolarMidnightSolarNoonSunriseSunsetNowNow
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 in Simpang

Solar Elevation and Azimuth in SimpangJanFebMarAprMayJunJulAugSepOctNovDec12 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 AM0000101010102020202030303030404040405050505060606060707070800000101010102020202030303030404040405050505060606070708059NowNow
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 in Simpang

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 perceived humidity level in Simpang, as measured by the percentage of time in which the humidity comfort level is muggy, oppressive, or miserable, does not vary significantly over the course of the year, staying within 1% of 99% throughout.

Humidity Comfort Levels in Simpang

Humidity Comfort Levels in SimpangJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Aug 2499%Aug 2499%100%Jan 24100%Jan 24NowNowmiserablemiserableoppressiveoppressivemuggymuggy
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 31.0d29.0d31.0d30.0d31.0d29.9d30.8d30.6d29.9d31.0d30.0d31.0d

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 in Simpang experiences significant seasonal variation over the course of the year.

The windier part of the year lasts for 5.4 months, from May 17 to October 29, with average wind speeds of more than 8.0 miles per hour. The windiest month of the year in Simpang is August, with an average hourly wind speed of 9.6 miles per hour.

The calmer time of year lasts for 6.6 months, from October 29 to May 17. The calmest month of the year in Simpang is March, with an average hourly wind speed of 6.6 miles per hour.

Average Wind Speed in Simpang

Average Wind Speed in SimpangwindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mphAug 99.7 mphAug 99.7 mphMar 316.3 mphMar 316.3 mphMay 178.0 mphMay 178.0 mphOct 298.0 mphOct 298.0 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) 7.67.56.66.87.98.59.39.69.28.47.47.3

The predominant average hourly wind direction in Simpang varies throughout the year.

The wind is most often from the east for 7.7 months, from March 17 to November 8, with a peak percentage of 91% on August 4. The wind is most often from the south for 1.4 months, from November 8 to December 21, with a peak percentage of 57% on November 26. The wind is most often from the west for 2.9 months, from December 21 to March 17, with a peak percentage of 50% on January 1.

Wind Direction in Simpang

Wind Direction in SimpangWESJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%NowNowwesteastsouth
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).

Simpang 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 5.9 months, from December 9 to June 6, with an average temperature above 83°F. The month of the year in Simpang with the warmest water is April, with an average temperature of 84°F.

The time of year with cooler water lasts for 2.3 months, from August 2 to October 11, with an average temperature below 80°F. The month of the year in Simpang with the coolest water is September, with an average temperature of 79°F.

Average Water Temperature in Simpang

Average Water Temperature in SimpangwarmcoolJanFebMarAprMayJunJulAugSepOctNovDec74°F74°F76°F76°F78°F78°F80°F80°F82°F82°F84°F84°F86°F86°FApr 484°FApr 484°F78°FSep 978°FSep 9Dec 983°FDec 983°FJun 683°FJun 683°FAug 280°FAug 280°FOct 1180°FOct 1180°FNowNow
The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.
WaterJanFebMarAprMayJunJulAugSepOctNovDec
Temperature 83°F84°F84°F84°F84°F82°F80°F79°F79°F80°F82°F83°F

To characterize how pleasant the weather is in Simpang 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 time of year to visit Simpang for general outdoor tourist activities is from late June to mid September, with a peak score in the second week of August.

Tourism Score in Simpang

Tourism Score in Simpangbest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810106.66.63.73.73.93.9NowNowtemperaturetemperature 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 time of year to visit Simpang for hot-weather activities is from late May to late September, with a peak score in the last week of July.

Beach/Pool Score in Simpang

Beach/Pool Score in Simpangbest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810106.26.23.93.9NowNowtemperaturetemperature 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 in Simpang 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 Simpang

Time Spent in Various Temperature Bands and the Growing Season in SimpangJanFebMarAprMayJunJulAugSepOctNovDec0%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 2NowNowcomfortablewarmhot
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 in Simpang

Growing Degree Days in SimpangJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F2,000°F2,000°F4,000°F4,000°F6,000°F6,000°F8,000°F8,000°F10,000°F10,000°FJul 490°FJul 490°FAug 5900°FAug 5900°FJun 3010,001°FJun 3010,001°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 2.0 months, from August 15 to October 16, with an average daily incident shortwave energy per square meter above 6.0 kWh. The brightest month of the year in Simpang is September, with an average of 6.3 kWh.

The darker period of the year lasts for 5.2 months, from January 11 to June 17, with an average daily incident shortwave energy per square meter below 4.8 kWh. The darkest month of the year in Simpang is April, with an average of 4.5 kWh.

Average Daily Incident Shortwave Solar Energy in Simpang

Average Daily Incident Shortwave Solar Energy in SimpangbrightdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWhSep 156.3 kWhSep 156.3 kWhApr 84.5 kWhApr 84.5 kWhJan 114.8 kWhJan 114.8 kWhJun 174.8 kWhJun 174.8 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) 4.84.74.84.54.74.85.36.06.36.05.25.0

For the purposes of this report, the geographical coordinates of Simpang are -7.623 deg latitude, 108.106 deg longitude, and 833 ft elevation.

The topography within 2 miles of Simpang contains very significant variations in elevation, with a maximum elevation change of 896 feet and an average elevation above sea level of 897 feet. Within 10 miles contains very significant variations in elevation (2,710 feet). Within 50 miles contains large variations in elevation (9,229 feet).

The area within 2 miles of Simpang is covered by trees (60%) and cropland (27%), within 10 miles by trees (63%) and cropland (27%), and within 50 miles by water (48%) and trees (31%).

This report illustrates the typical weather in Simpang, 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

There is only a single weather station, Tunggul Wulung Airport, in our network suitable to be used as a proxy for the historical temperature and dew point records of Simpang.

At a distance of 101 kilometers from Simpang, closer than our threshold of 150 kilometers, this station is deemed sufficiently nearby to be relied upon as our primary source for temperature and dew point records.

The station records are corrected for the elevation difference between the station and Simpang according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.

Please note that the station records themselves may additionally have been back-filled using other nearby stations or the MERRA-2 reanalysis.

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.