December weather forecastBontitan, Indonesia

December

Weather in December

The first month of the summer, December, is still a warm month in Bontitan, Indonesia, with an average temperature fluctuating between 23.1°C (73.6°F) and 28.5°C (83.3°F).

Temperature

Bontitan experiences an average high-temperature of a still warm 28.5°C (83.3°F) in December, marking an insignificant shift from 28.4°C (83.1°F) in November. Bontitan, during the nights of December, experiences an average temperature drop to a still warm 23.1°C (73.6°F).

Heat index

December's average heat index is estimated at a hot 34°C (93.2°F). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Consider that heat index readings are for situations in the shade and light wind. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.

Humidity

In December, the average relative humidity in Bontitan is 82%.

Rainfall

In Bontitan, in December, during 29.5 rainfall days, 199mm (7.83") of precipitation is typically accumulated. Throughout the year, in Bontitan, there are 295.6 rainfall days, and 1843mm (72.56") of precipitation is accumulated.

Daylight

The month with the longest days is December, with an average of 12h and 36min of daylight.
On the first day of the month, sunrise is at 05:11 and sunset at 17:44. On the last day of December, sunrise is at 05:25 and sunset at 17:59 WIB.

Sunshine

December has the least sunshine of the year, with an average of 7.4h of sunshine.

UV index

January, April through September, November and December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: The daily maximum UV index of 6 in December interprets into the following advice:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Boost your sun resistance with garments that are densely woven yet spacious.

Updated: Aug 14, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The high-temperature, in December, in Bontitan, is 28.5°C (83.3°F), while the low-temperature averages to 23.1°C (73.6°F). In December, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines relative humidity and air temperature, is estimated at 34°C (93.2°F).

In Bontitan, the average relative humidity in December is 82%.

In Bontitan, during December, the rain falls for 29.5 days and regularly aggregates up to 199mm (7.83") of precipitation.

With an average of 12h and 36min of daylight, December has the longest days of the year.

In Bontitan, the average day length in December is 12h and 34min.

On the first day of December, sunrise is at 05:11 and sunset at 17:44. On the last day of the month, sunrise is at 05:25 and sunset at 17:59 WIB.

With an average of 7.4h of sunshine, December has the least sunshine of the year.

The average sunshine duration in December in Bontitan is 7.4h.

The months with the lowest UV index are January, April through September, November and December, with an average maximum UV index of 6.

The average daily maximum UV index in December is 6. A UV Index estimate of 6 to 7 represents a high hazard to health from unprotected exposure to UV radiation.

Today

Tomorrow

Long-term

Year J F M A M J J A S O N December

Nov

December

Jan

Average high temperature

28.4°C

28.5°C

28.4°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

9.3km/h

9.4km/h

10.3km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

0.9

0.6

Average UV index

Average cloud cover

48%

50%

Average visibility

9km

Average temperature in December
Bontitan, Indonesia

Average high temperature in December: 28.5°C

The warmest month (with the highest average high temperature) is October (29.1°C).
The month with the lowest average high temperature is July (27.3°C).

Average low temperature in December: 23.1°C

The months with the highest average low temperature are January and November (23.3°C).
The coldest month (with the lowest average low temperature) is August (21°C).

Average pressure in December
Bontitan, Indonesia

Average pressure in December: 1009.1mbar

The month with the highest atmospheric pressure is September (1011.9mbar).
The month with the lowest atmospheric pressure is December (1009.1mbar).

Average wind speed in December
Bontitan, Indonesia

Average wind speed in December: 8.2km/h

The windiest month (with the highest average wind speed) is August (11.5km/h).
The calmest month (with the lowest average wind speed) is April (6.9km/h).

Average humidity in December
Bontitan, Indonesia

Average humidity in December: 82%

The months with the highest relative humidity are May and June (84%).
The month with the lowest relative humidity is October (80%).

Average rainfall in December
Bontitan, Indonesia

Average rainfall in December: 199mm

The wettest month (with the highest rainfall) is March (242mm).
The driest month (with the least rainfall) is August (25mm).

Average rainfall days in December
Bontitan, Indonesia

Average rainfall days in December: 29.5 days

The month with the highest number of rainy days is January (30.3 days).
The month with the least rainy days is August (13.6 days).

Average daylight in December /
Average sunshine in December
Bontitan, Indonesia

Average daylight in December: 12h and 36min

The month with the longest days is December (Average daylight: 12h and 36min).
The month with the shortest days is June (Average daylight: 11h and 42min).

Average sunshine in December: 7h and 24min

The month with the most sunshine is February (Average sunshine: 9h and 6min).
The month with the least sunshine is December (Average sunshine: 7h and 24min).

Average sunshine days in December
Bontitan, Indonesia

Average sunshine days in December: 0.9 days

The month with the most sunshine days is August (12.3 days).
The month with the least sunshine days is March (0.5 days).

Average UV index in December
Bontitan, Indonesia

Average UV index in December: 6

The months with the highest UV index are February, March and October (UV index 7).
The months with the lowest UV index are January, April, May, June, July, August, September, November and December (UV index 6).

Average cloud cover in December
Bontitan, Indonesia

Average cloud cover in December: 50

The months with the most cloud cover are January and December (Cloud cover 50).
The months with the least cloud cover are June and August (Cloud cover 38).

Average visibility in December
Bontitan, Indonesia

Average visibility in December: 9km

The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, February, March, April, May, October, November and December (9km).