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Fall Weather in Letung Indonesia

Daily high temperatures are around 82°F, rarely falling below 80°F or exceeding 84°F.

Daily low temperatures are around 81°F, rarely falling below 79°F or exceeding 83°F.

For reference, on May 14, the hottest day of the year, temperatures in Letung typically range from 83°F to 84°F, while on January 26, the coldest day of the year, they range from 79°F to 80°F.

Average High and Low Temperature in the Fall in Letung

Average High and Low Temperature in the Fall in LetungSepOctNov78°F78°F80°F80°F82°F82°F84°F84°F86°F86°F88°F88°F90°F90°F92°F92°FSummerWinterSep 183°FSep 183°F82°F82°FNov 3082°FNov 3082°F80°F80°FOct 183°FOct 183°F82°F82°FNov 182°FNov 182°F81°F81°F
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 in Letung

Average Hourly Temperature in the Fall in LetungSepOctNov12 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 AMSummerWinterwarm
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.

San Andrés, Colombia (11,259 miles away) is the far-away foreign place with temperatures most similar to Letung (view comparison).

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The fall in Letung experiences gradually increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 83% to 88%. The highest chance of overcast or mostly cloudy conditions is 89% on November 21.

The clearest day of the fall is September 1, with clear, mostly clear, or partly cloudy conditions 17% of the time.

For reference, on November 20, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 89%, while on March 7, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 25%.

Cloud Cover Categories in the Fall in Letung

Cloud Cover Categories in the Fall in LetungSepOctNov0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%SummerWinterMar 725%Mar 725%Sep 117%Sep 117%Nov 3012%Nov 3012%Oct 115%Oct 115%Nov 112%Nov 112%partly cloudymostly cloudyovercastmostly clear
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. In Letung, the chance of a wet day over the course of the fall is very rapidly increasing, starting the season at 49% and ending it at 69%.

For reference, the year's highest daily chance of a wet day is 72% on November 5, and its lowest chance is 19% on March 21.

Probability of Precipitation in the Fall in Letung

Probability of Precipitation in the Fall in LetungSepOctNov0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%SummerWinterNov 572%Nov 572%Sep 149%Sep 149%Nov 3069%Nov 3069%Oct 156%Oct 156%rain
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 in Letung is very rapidly increasing, starting the season at 3.5 inches, when it rarely exceeds 6.5 inches or falls below 1.4 inches, and ending the season at 8.3 inches, when it rarely exceeds 13.3 inches or falls below 4.0 inches.

Average Monthly Rainfall in the Fall in Letung

Average Monthly Rainfall in the Fall in LetungSepOctNov0 in0 in2 in2 in4 in4 in6 in6 in8 in8 in10 in10 in12 in12 in14 in14 inSummerWinterSep 13.5 inSep 13.5 inNov 308.3 inNov 308.3 inOct 14.8 inOct 14.8 inNov 17.2 inNov 17.2 in
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 in Letung, the length of the day is essentially constant. The shortest day of the fall is November 30, with 11 hours, 58 minutes of daylight and the longest day is September 1, with 12 hours, 10 minutes of daylight.

Hours of Daylight and Twilight in the Fall in Letung

Hours of Daylight and Twilight in the Fall in LetungSepOctNov0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrSummerWinterSep 2212 hr, 7 minSep 2212 hr, 7 minnightnightdaydayNov 3011 hr, 58 minNov 3011 hr, 58 minNov 112 hr, 1 minNov 112 hr, 1 min
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 latest sunrise of the fall in Letung is 5:52 AM on September 1 and the earliest sunrise is 12 minutes earlier at 5:40 AM on October 28.

The latest sunset is 6:02 PM on September 1 and the earliest sunset is 21 minutes earlier at 5:40 PM on November 6.

Daylight saving time is not observed in Letung during 2024.

For reference, on June 20, the longest day of the year, the Sun rises at 5:49 AM and sets 12 hours, 18 minutes later, at 6:07 PM, while on December 21, the shortest day of the year, it rises at 5:56 AM and sets 11 hours, 57 minutes later, at 5:53 PM.

Sunrise & Sunset with Twilight in the Fall in Letung

Sunrise & Sunset with Twilight in the Fall in LetungSepOctNov12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMSummerWinter5:40 AM5:40 AMOct 285:41 PMOct 285:41 PM5:52 AM5:52 AMSep 16:02 PMSep 16:02 PM5:46 AM5:46 AMNov 305:44 PMNov 305:44 PM5:44 AM5:44 AMOct 15:49 PMOct 15:49 PMSolarMidnightSolarMidnightSolarNoonSunriseSunset
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 in Letung

Solar Elevation and Azimuth in the Fall in LetungSepOctNov12 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 AMSummerWinter00102020303040505060607080001010203030404050606070
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 in Letung

Moon Rise, Set & Phases in the Fall in LetungSepOctNov12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMSummerWinterAug 46:14 PMAug 46:14 PMAug 201:26 AMAug 201:26 AMSep 38:56 AMSep 38:56 AMSep 189:35 AMSep 189:35 AMOct 31:50 AMOct 31:50 AMOct 176:27 PMOct 176:27 PMNov 17:48 PMNov 17:48 PMNov 164:29 AMNov 164:29 AMDec 11:22 PMDec 11:22 PMDec 154:02 PMDec 154:02 PMDec 315:28 AMDec 315:28 AM6:12 PM6:12 PM5:52 PM5:52 PM6:12 AM6:12 AM5:52 AM5:52 AM6:16 PM6:16 PM5:20 PM5:20 PM5:44 AM5:44 AM5:53 AM5:53 AM6:09 PM6:09 PM5:35 PM5:35 PM6:08 AM6:08 AM5:14 AM5:14 AM5:29 PM5:29 PM5:06 PM5:06 PM5:45 AM5:45 AM5:32 AM5:32 AM5:46 PM5:46 PM5:49 PM5:49 PM6:34 AM6:34 AM6:25 PM6:25 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 in Letung is essentially constant during the fall, remaining around 100% throughout.

Humidity Comfort Levels in the Fall in Letung

Humidity Comfort Levels in the Fall in LetungSepOctNov0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%SummerWinterOct 16100%Oct 16100%Sep 1100%Sep 1100%Nov 30100%Nov 30100%Oct 1100%Oct 1100%Nov 1100%Nov 1100%miserablemiserableoppressiveoppressive
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 in Letung is gradually increasing during the fall, increasing from 10.0 miles per hour to 10.8 miles per hour over the course of the season.

For reference, on January 1, the windiest day of the year, the daily average wind speed is 15.4 miles per hour, while on April 23, the calmest day of the year, the daily average wind speed is 5.8 miles per hour.

The lowest daily average wind speed during the fall is 6.8 miles per hour on October 27.

Average Wind Speed in the Fall in Letung

Average Wind Speed in the Fall in LetungSepOctNov0 mph0 mph5 mph5 mph10 mph10 mph15 mph15 mph20 mph20 mphSummerWinterOct 276.8 mphOct 276.8 mphSep 110.0 mphSep 110.0 mphNov 3010.8 mphNov 3010.8 mphOct 17.6 mphOct 17.6 mph
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The wind direction in Letung during the fall is predominantly out of the south from September 1 to October 24 and the north from October 24 to November 30.

Wind Direction in the Fall in Letung

Wind Direction in the Fall in LetungSNSepOctNov0%100%20%80%40%60%60%40%80%20%100%0%SummerWinterwestsouthnortheast
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).

Letung 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 in Letung is essentially constant during the fall, remaining within 1°F of 84°F throughout.

The highest average surface water temperature during the fall is 85°F on October 18.

Average Water Temperature in the Fall in Letung

Average Water Temperature in the Fall in LetungSepOctNov79°F79°F80°F80°F81°F81°F82°F82°F83°F83°F84°F84°F85°F85°F86°F86°FSummerWinterOct 1885°FOct 1885°FSep 184°FSep 184°FNov 3083°FNov 3083°FOct 184°FOct 184°FNov 184°FNov 184°F
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 in Letung 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 in Letung

Time Spent in Various Temperature Bands and the Growing Season in the Fall in LetungSepOctNov0%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 16warm
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 in Letung are very rapidly increasing during the fall, increasing by 2,866°F, from 7,769°F to 10,634°F, over the course of the season.

Growing Degree Days in the Fall in Letung

Growing Degree Days in the Fall in LetungSepOctNov8,000°F8,000°F8,500°F8,500°F9,000°F9,000°F9,500°F9,500°F10,000°F10,000°F10,500°F10,500°FSummerWinterSep 17,769°FSep 17,769°FNov 3010,634°FNov 3010,634°FOct 18,734°FOct 18,734°FNov 19,727°FNov 19,727°F
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 in Letung is essentially constant during the fall, remaining within 0.2 kWh of 3.9 kWh throughout.

The lowest average daily incident shortwave solar energy during the fall is 3.7 kWh on November 21.

Average Daily Incident Shortwave Solar Energy in the Fall in Letung

Average Daily Incident Shortwave Solar Energy in the Fall in LetungSepOctNov0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWhSummerWinterNov 213.7 kWhNov 213.7 kWhSep 14.0 kWhSep 14.0 kWhOct 14.1 kWhOct 14.1 kWhNov 13.8 kWhNov 13.8 kWh
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 Letung are 2.989 deg latitude, 105.707 deg longitude, and 7 ft elevation.

The topography within 2 miles of Letung contains very significant variations in elevation, with a maximum elevation change of 1,417 feet and an average elevation above sea level of 223 feet. Within 10 miles also contains very significant variations in elevation (1,519 feet). Within 50 miles also contains very significant variations in elevation (1,831 feet).

The area within 2 miles of Letung is covered by trees (45%) and water (40%), within 10 miles by water (77%) and trees (17%), and within 50 miles by water (97%).

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

Letung is further than 200 kilometers from the nearest reliable weather station, so the weather-related data on this page were taken entirely from NASA's MERRA-2 satellite-era reanalysis . 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.

The temperature and dew point estimates are corrected for the difference between the reference elevation of the MERRA-2 grid cell and the elevation of Letung, according to the International Standard Atmosphere .

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.

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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