Average Weather at Sultan Muhammad Salahudin Airport Indonesia
At Sultan Muhammad Salahudin Airport, the wet season is overcast, the dry season is partly cloudy, and it is hot and oppressive year round. Over the course of the year, the temperature typically varies from 72°F to 93°F and is rarely below 69°F or above 96°F.
Based on the beach/pool score, the best time of year to visit Sultan Muhammad Salahudin Airport for hot-weather activities is from mid May to mid October.
The temperature at Sultan Muhammad Salahudin Airport varies so little throughout the year that it is not entirely meaningful to discuss hot and cold seasons.
Average High and Low Temperature
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 Sultan Muhammad Salahudin Airport, 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 at Sultan Muhammad Salahudin Airport begins around April 27 and lasts for 6.0 months, ending around October 28. On August 15, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 51% of the time, and overcast or mostly cloudy 49% of the time.
The cloudier part of the year begins around October 28 and lasts for 6.0 months, ending around April 27. On January 21, the cloudiest day of the year, the sky is overcast or mostly cloudy 90% of the time, and clear, mostly clear, or partly cloudy 10% of the time.
Cloud Cover Categories
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days at Sultan Muhammad Salahudin Airport varies very significantly throughout the year.
The wetter season lasts 5.0 months, from November 12 to April 12, with a greater than 28% chance of a given day being a wet day. The chance of a wet day peaks at 54% on February 6.
The drier season lasts 7.0 months, from April 12 to November 12. The smallest chance of a wet day is 1% on August 15.
Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 54% on February 6.
Daily Chance of Precipitation
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. Sultan Muhammad Salahudin Airport experiences extreme seasonal variation in monthly rainfall.
The rainy period of the year lasts for 9.7 months, from September 18 to July 9, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around January 29, with an average total accumulation of 7.4 inches.
The rainless period of the year lasts for 2.3 months, from July 9 to September 18. The least rain falls around August 12, with an average total accumulation of 0.1 inches.
Average Monthly Rainfall
The length of the day at Sultan Muhammad Salahudin Airport does not vary substantially over the course of the year, staying within 37 minutes of 12 hours throughout. In 2018, the shortest day is June 21, with 11 hours, 38 minutes of daylight; the longest day is December 22, with 12 hours, 38 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 5:34 AM on November 16, and the latest sunrise is 46 minutes later at 6:21 AM on July 15. The earliest sunset is at 5:52 PM on May 26, and the latest sunset is 40 minutes later at 6:33 PM on January 29.
Daylight saving time (DST) is not observed at Sultan Muhammad Salahudin Airport during 2018.
Sunrise & Sunset with 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 at Sultan Muhammad Salahudin Airport, 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 4% of 96% throughout.
Humidity Comfort Levels
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 Sultan Muhammad Salahudin Airport experiences significant seasonal variation over the course of the year.
The windier part of the year lasts for 5.2 months, from May 13 to October 19, with average wind speeds of more than 7.8 miles per hour. The windiest day of the year is July 29, with an average hourly wind speed of 10.1 miles per hour.
The calmer time of year lasts for 6.8 months, from October 19 to May 13. The calmest day of the year is March 31, with an average hourly wind speed of 5.4 miles per hour.
Average Wind Speed
The predominant average hourly wind direction at Sultan Muhammad Salahudin Airport varies throughout the year.
The wind is most often from the east for 5.2 months, from March 21 to August 27, with a peak percentage of 61% on May 29. The wind is most often from the south for 3.5 months, from August 27 to December 13, with a peak percentage of 59% on October 4. The wind is most often from the west for 3.3 months, from December 13 to March 21, with a peak percentage of 51% on January 1.
Sultan Muhammad Salahudin 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 water temperature experiences some seasonal variation over the course of the year.
The time of year with warmer water lasts for 2.0 months, from November 1 to January 2, with an average temperature above 84°F. The day of the year with the warmest water is December 1, with an average temperature of 85°F.
The time of year with cooler water lasts for 2.2 months, from July 11 to September 18, with an average temperature below 81°F. The day of the year with the coolest water is August 14, with an average temperature of 80°F.
Average Water Temperature
Best Time of Year to Visit
To characterize how pleasant the weather is at Sultan Muhammad Salahudin Airport 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 Sultan Muhammad Salahudin Airport for general outdoor tourist activities is from mid June to mid September, with a peak score in the second week of August.
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 Sultan Muhammad Salahudin Airport for hot-weather activities is from mid May to mid October, with a peak score in the first week of September.
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 Sultan Muhammad Salahudin 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
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
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 2.4 months, from August 21 to November 3, with an average daily incident shortwave energy per square meter above 6.6 kWh. The brightest day of the year is September 28, with an average of 7.1 kWh.
The darker period of the year lasts for 3.2 months, from December 6 to March 11, with an average daily incident shortwave energy per square meter below 4.9 kWh. The darkest day of the year is February 3, with an average of 4.3 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Sultan Muhammad Salahudin Airport are -8.540 deg latitude, 118.688 deg longitude, and 16 ft elevation.
The topography within 2 miles of Sultan Muhammad Salahudin Airport contains very significant variations in elevation, with a maximum elevation change of 988 feet and an average elevation above sea level of 75 feet. Within 10 miles contains very significant variations in elevation (3,904 feet). Within 50 miles also contains extreme variations in elevation (7,835 feet).
The area within 2 miles of Sultan Muhammad Salahudin Airport is covered by cropland (40%), water (29%), and trees (17%), within 10 miles by cropland (37%) and trees (37%), and within 50 miles by water (71%) and trees (15%).
This report illustrates the typical weather at Sultan Muhammad Salahudin 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
Sultan Muhammad Salahudin 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.
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.
In this case, the only station close and reliable enough to use as a fallback is Brangbiji Airport.
All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Tables of the Sun, Moon and Planets , 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 aiports and weather stations are provided by AskGeo.com .
Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC.
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.