Winter Weather in Sanggau Indonesia

Daily high temperatures are around 87°F, rarely falling below 83°F or exceeding 91°F. The lowest daily average high temperature is 86°F on January 5.

Daily low temperatures are around 74°F, rarely falling below 72°F or exceeding 76°F. The lowest daily average low temperature is 74°F on December 17.

For reference, on August 9, the hottest day of the year, temperatures in Sanggau typically range from 73°F to 89°F, while on July 16, the coldest day of the year, they range from 73°F to 89°F.

The figure below shows you a compact characterization of the hourly average winter 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.

Antioquia, Colombia (11,809 miles away) is the far-away foreign place with temperatures most similar to Sanggau (view comparison).

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The winter in Sanggau experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 88% throughout the season. The highest chance of overcast or mostly cloudy conditions is 90% on January 17.

The clearest day of the winter is February 27, with clear, mostly clear, or partly cloudy conditions 13% of the time.

For reference, on January 1, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 90%, while on June 25, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 31%.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Sanggau, the chance of a wet day over the course of the winter is very rapidly decreasing, starting the season at 72% and ending it at 51%.

For reference, the year's highest daily chance of a wet day is 76% on November 16, and its lowest chance is 37% on August 10.

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 winter in Sanggau is very rapidly decreasing, starting the season at 12.3 inches, when it rarely exceeds 16.6 inches or falls below 8.1 inches, and ending the season at 9.4 inches, when it rarely exceeds 14.0 inches or falls below 4.8 inches.

The highest average 31-day accumulation is 12.5 inches on January 6.

Over the course of the winter in Sanggau, the length of the day is essentially constant. The shortest day of the winter is February 26, with 12 hours, 6 minutes of daylight and the longest day is December 23, with 12 hours, 7 minutes of daylight.

The earliest sunrise of the winter in Sanggau is 5:23 AM on December 1 and the latest sunrise is 25 minutes later at 5:48 AM on February 12.

The earliest sunset is 5:30 PM on December 1 and the latest sunset is 25 minutes later at 5:55 PM on February 11.

Daylight saving time is not observed in Sanggau during 2024.

For reference, on June 20, the longest day of the year, the Sun rises at 5:35 AM and sets 12 hours, 8 minutes later, at 5:43 PM, while on December 21, the shortest day of the year, it rises at 5:32 AM and sets 12 hours, 7 minutes later, at 5:39 PM.

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.

The figure below presents a compact representation of key lunar data for the winter 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.

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 Sanggau is essentially constant during the winter, remaining around 100% throughout.

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 Sanggau is essentially constant during the winter, remaining around 1.4 miles per hour throughout.

For reference, on August 6, the windiest day of the year, the daily average wind speed is 1.5 miles per hour, while on April 13, the calmest day of the year, the daily average wind speed is 1.3 miles per hour.

The highest daily average wind speed during the winter is 1.4 miles per hour on January 27.

The wind direction in Sanggau during the winter is predominantly out of the west from December 1 to January 7 and the north from January 7 to February 28.

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 Sanggau 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.

The average accumulated growing degree days in Sanggau are very rapidly decreasing during the winter, decreasing by 8,139°F, from 9,814°F to 1,675°F, over the course of the season.

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 Sanggau is essentially constant during the winter, remaining within 0.2 kWh of 4.5 kWh throughout.

The highest average daily incident shortwave solar energy during the winter is 4.7 kWh on February 25.

For the purposes of this report, the geographical coordinates of Sanggau are 0.133 deg latitude, 110.600 deg longitude, and 161 ft elevation.

The topography within 2 miles of Sanggau contains only modest variations in elevation, with a maximum elevation change of 285 feet and an average elevation above sea level of 113 feet. Within 10 miles contains only modest variations in elevation (984 feet). Within 50 miles contains very significant variations in elevation (4,272 feet).

The area within 2 miles of Sanggau is covered by trees (42%), cropland (29%), and water (13%), within 10 miles by trees (49%) and cropland (34%), and within 50 miles by trees (57%) and cropland (30%).