Average Weather in Tanjung Indonesia
The climate in Tanjung is warm, oppressive, windy, and overcast. Over the course of the year, the temperature typically varies from 78°F to 85°F and is rarely below 77°F or above 86°F.
Based on the beach/pool score, the best time of year to visit Tanjung for hot-weather activities is from late January to late April.
The temperature in Tanjung 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
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
In Tanjung, the average percentage of the sky covered by clouds experiences mild seasonal variation over the course of the year.
The clearer part of the year in Tanjung begins around January 20 and lasts for 4.0 months, ending around May 20. On March 1, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 23% of the time, and overcast or mostly cloudy 77% of the time.
The cloudier part of the year begins around May 20 and lasts for 8.0 months, ending around January 20. On November 14, the cloudiest day of the year, the sky is overcast or mostly cloudy 90% of the time, and clear, mostly clear, or partly cloudy 9% of the time.
Cloud Cover Categories
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Tanjung varies significantly throughout the year.
The wetter season lasts 7.8 months, from May 22 to January 17, with a greater than 52% chance of a given day being a wet day. The chance of a wet day peaks at 77% on November 6.
The drier season lasts 4.2 months, from January 17 to May 22. The smallest chance of a wet day is 27% on March 18.
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 77% on November 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. Tanjung experiences extreme seasonal variation in monthly rainfall.
Rain falls throughout the year in Tanjung. The most rain falls during the 31 days centered around December 10, with an average total accumulation of 8.9 inches.
The least rain falls around April 1, with an average total accumulation of 1.9 inches.
Average Monthly Rainfall
The length of the day in Tanjung does not vary substantially over the course of the year, staying within 21 minutes of 12 hours throughout. In 2018, the shortest day is December 22, with 11 hours, 54 minutes of daylight; the longest day is June 21, with 12 hours, 21 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 5:30 AM on October 27, and the latest sunrise is 31 minutes later at 6:01 AM on February 5. The earliest sunset is at 5:29 PM on November 9, and the latest sunset is 34 minutes later at 6:02 PM on July 20.
Daylight saving time (DST) is not observed in Tanjung 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 in Tanjung, 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, remaining a virtually constant 100% throughout.
Humidity Comfort Levels
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
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 Tanjung experiences extreme seasonal variation over the course of the year.
The windier part of the year lasts for 3.3 months, from December 1 to March 10, with average wind speeds of more than 10.6 miles per hour. The windiest day of the year is January 20, with an average hourly wind speed of 15.3 miles per hour.
The calmer time of year lasts for 8.7 months, from March 10 to December 1. The calmest day of the year is May 1, with an average hourly wind speed of 5.8 miles per hour.
Average Wind Speed
The predominant average hourly wind direction in Tanjung varies throughout the year.
The wind is most often from the east for 1.8 months, from March 12 to May 6, with a peak percentage of 58% on April 4. The wind is most often from the south for 4.6 months, from May 6 to September 23, with a peak percentage of 71% on August 7. The wind is most often from the north for 4.5 months, from October 28 to March 12, with a peak percentage of 78% on January 1.
Tanjung 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 3.3 months, from April 22 to August 1, with an average temperature above 85°F. The day of the year with the warmest water is May 26, with an average temperature of 86°F.
The time of year with cooler water lasts for 2.4 months, from December 21 to March 1, with an average temperature below 81°F. The day of the year with the coolest water is January 21, with an average temperature of 80°F.
Average Water Temperature
Best Time of Year to Visit
To characterize how pleasant the weather is in Tanjung 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 Tanjung for general outdoor tourist activities is from mid January to early March, with a peak score in the second week of February.
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 Tanjung for hot-weather activities is from late January to late April, with a peak score in the first week of March.
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 Tanjung 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
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
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 2.1 months, from February 10 to April 15, with an average daily incident shortwave energy per square meter above 5.2 kWh. The brightest day of the year is March 11, with an average of 5.5 kWh.
The darker period of the year lasts for 2.9 months, from October 7 to January 3, with an average daily incident shortwave energy per square meter below 4.0 kWh. The darkest day of the year is November 21, with an average of 3.6 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Tanjung are 4.015 deg latitude, 108.343 deg longitude, and 0 ft elevation.
The topography within 2 miles of Tanjung contains significant variations in elevation, with a maximum elevation change of 725 feet and an average elevation above sea level of 34 feet. Within 10 miles contains significant variations in elevation (3,268 feet). Within 50 miles also contains large variations in elevation (3,268 feet).
The area within 2 miles of Tanjung is covered by water (57%), trees (19%), and cropland (18%), within 10 miles by water (60%) and trees (24%), and within 50 miles by water (94%).
This report illustrates the typical weather in Tanjung, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.
Tanjung 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 Tanjung, 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 Tables of the Sun, Moon and Planets , 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 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.