Climate and Average Weather Year Round in Tawui Indonesia

In Tawui, the wet season is overcast, the dry season is windy and partly cloudy, and it is hot and oppressive year round. Over the course of the year, the temperature typically varies from 70°F to 91°F and is rarely below 68°F or above 93°F.

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

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

In Tawui, 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 Tawui begins around April 20 and lasts for 6.4 months, ending around November 2.

The clearest month of the year in Tawui is August, during which on average the sky is clear, mostly clear, or partly cloudy 54% of the time.

The cloudier part of the year begins around November 2 and lasts for 5.6 months, ending around April 20.

The cloudiest month of the year in Tawui is January, during which on average the sky is overcast or mostly cloudy 85% of the time.

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

The wetter season lasts 4.3 months, from November 23 to April 2, with a greater than 27% chance of a given day being a wet day. The month with the most wet days in Tawui is February, with an average of 15.0 days with at least 0.04 inches of precipitation.

The drier season lasts 7.7 months, from April 2 to November 23. The month with the fewest wet days in Tawui is August, with an average of 0.6 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 Tawui is February, with an average of 15.0 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 53% on February 18.

Rainfall

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. Tawui experiences extreme seasonal variation in monthly rainfall.

The rainy period of the year lasts for 7.5 months, from October 20 to June 6, with a sliding 31-day rainfall of at least 0.5 inches. The month with the most rain in Tawui is February, with an average rainfall of 6.5 inches.

The rainless period of the year lasts for 4.5 months, from June 6 to October 20. The month with the least rain in Tawui is August, with an average rainfall of 0.1 inches.

The length of the day in Tawui does not vary substantially over the course of the year, staying within 43 minutes of 12 hours throughout. In 2024, the shortest day is June 21, with 11 hours, 32 minutes of daylight; the longest day is December 21, with 12 hours, 43 minutes of daylight.

The earliest sunrise is at 5:26 AM on November 18, and the latest sunrise is 51 minutes later at 6:18 AM on July 14. The earliest sunset is at 5:44 PM on May 28, and the latest sunset is 45 minutes later at 6:29 PM on January 28.

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

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.

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.

Tawui experiences significant seasonal variation in the perceived humidity.

The muggier period of the year lasts for 11 months, from August 22 to July 14, during which time the comfort level is muggy, oppressive, or miserable at least 75% of the time. The month with the most muggy days in Tawui is January, with 31.0 days that are muggy or worse.

The month with the fewest muggy days in Tawui is August, with 22.4 days that are muggy or worse.

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 Tawui experiences significant seasonal variation over the course of the year.

The windier part of the year lasts for 5.0 months, from April 21 to September 23, with average wind speeds of more than 10.9 miles per hour. The windiest month of the year in Tawui is July, with an average hourly wind speed of 14.0 miles per hour.

The calmer time of year lasts for 7.0 months, from September 23 to April 21. The calmest month of the year in Tawui is November, with an average hourly wind speed of 8.2 miles per hour.

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

The wind is most often from the east for 7.6 months, from March 16 to November 3, with a peak percentage of 93% on June 19. The wind is most often from the south for 1.1 months, from November 3 to December 6, with a peak percentage of 49% on November 18. The wind is most often from the west for 3.3 months, from December 6 to March 16, with a peak percentage of 63% on January 1.

Tawui 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 5.6 months, from November 8 to April 25, with an average temperature above 84°F. The month of the year in Tawui with the warmest water is December, with an average temperature of 85°F.

The time of year with cooler water lasts for 2.6 months, from June 30 to September 16, with an average temperature below 80°F. The month of the year in Tawui with the coolest water is August, with an average temperature of 78°F.

To characterize how pleasant the weather is in Tawui 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 Tawui for general outdoor tourist activities is from early June to mid September, with a peak score in the last week of July.

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 Tawui for hot-weather activities is from late April to early November, with a peak score in the second week of September.

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 Tawui 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.

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.

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 2.2 months, from September 1 to November 8, with an average daily incident shortwave energy per square meter above 6.8 kWh. The brightest month of the year in Tawui is October, with an average of 7.3 kWh.

The darker period of the year lasts for 3.0 months, from December 14 to March 14, with an average daily incident shortwave energy per square meter below 5.3 kWh. The darkest month of the year in Tawui is February, with an average of 4.9 kWh.

For the purposes of this report, the geographical coordinates of Tawui are -10.143 deg latitude, 120.073 deg longitude, and 98 ft elevation.

The topography within 2 miles of Tawui contains very significant variations in elevation, with a maximum elevation change of 1,066 feet and an average elevation above sea level of 222 feet. Within 10 miles contains very significant variations in elevation (3,583 feet). Within 50 miles also contains extreme variations in elevation (3,983 feet).

The area within 2 miles of Tawui is covered by trees (39%), water (33%), and cropland (20%), within 10 miles by water (51%) and trees (31%), and within 50 miles by water (66%) and cropland (17%).