December weather forecastTenau, Indonesia

December

Weather in December

December, the first month of the summer in Tenau, is also a moderately hot month, with an average temperature fluctuating between 27.3°C (81.1°F) and 29.6°C (85.3°F).

Temperature

Shifting into December, Tenau records an average high-temperature of a warm 29.6°C (85.3°F), presenting minor fluctuations compared to the previous month. Nighttime, during December, brings an average low of 27.3°C (81.1°F), a modest reduction from the day's peak.

Heat index

For December, the heat index is estimated at a fiery hot 35°C (95°F). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.
Realize that the values for the heat index are set for shaded places and light winds. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'felt air temperature' or 'feels like', integrates the air's temperature and its humidity to showcase the felt temperature by people. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled by perspiration. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.

Humidity

In Tenau, the average relative humidity in December is 75%.

Rainfall

In December, the rain falls for 25 days. Throughout December, 140mm (5.51") of precipitation is accumulated. In Tenau, during the entire year, the rain falls for 153.3 days and collects up to 741mm (29.17") of precipitation.

Daylight

With an average of 12h and 42min of daylight, December has the longest days of the year.
On the first day of December, sunrise is at 05:14 and sunset at 17:55. On the last day of the month, sunrise is at 05:27 and sunset at 18:10 WITA.

Sunshine

In Tenau, the average sunshine in December is 9.9h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index. The months with the lowest UV index in Tenau, Indonesia, are January through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In December, a daily maximum UV index of 7 leads to the following instructions:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.

Frequently asked questions

In December, in Tenau, the average high-temperature is 29.6°C (85.3°F), and the average low-temperature is 27.3°C (81.1°F). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines air temperature and relative humidity, in December is estimated at 35°C (95°F).

In Tenau, the average relative humidity in December is 75%.

In Tenau, during December, the rain falls for 25 days and regularly aggregates up to 140mm (5.51") of precipitation.

December has the longest days of the year, with an average of 12h and 42min of daylight.

In December, the average day length is 12h and 43min.

In December, on the first day of the month, sunrise is at 05:14 and sunset at 17:55. On the last day of the month, sunrise is at 05:27 and sunset at 18:10 WITA.

In Tenau, the average sunshine duration in December is 9.9h.

The months with the highest UV index are January through December, with an average maximum UV index of 7.

January through December, with an average maximum UV index of 7, are months with the lowest UV index.

In Tenau, Indonesia, the average daily maximum UV index in December is 7. A UV Index of 6 to 7 symbolizes a high health threat from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Tenau, Indonesia

  • Average high temperature in December: 29.6°C

The warmest month (with the highest average high temperature) is November (30.7°C).
The month with the lowest average high temperature is July (27.9°C).

  • Average low temperature in December: 27.3°C

The month with the highest average low temperature is November (27.5°C).
The coldest month (with the lowest average low temperature) is August (23.8°C).

Average pressure in December
Tenau, Indonesia

  • Average pressure in December: 1007.6mbar

The month with the highest atmospheric pressure is August (1012.6mbar).
The month with the lowest atmospheric pressure is January (1007.5mbar).

Average wind speed in December
Tenau, Indonesia

  • Average wind speed in December: 10.6km/h

The windiest month (with the highest average wind speed) is June (21.3km/h).
The calmest month (with the lowest average wind speed) is November (10.4km/h).

Average humidity in December
Tenau, Indonesia

  • Average humidity in December: 75%

The month with the highest relative humidity is January (79%).
The months with the lowest relative humidity are September and October (69%).

Average rainfall in December
Tenau, Indonesia

  • Average rainfall in December: 140mm

The wettest month (with the highest rainfall) is January (172mm).
The driest month (with the least rainfall) is August (1mm).

Average rainfall days in December
Tenau, Indonesia

  • Average rainfall days in December: 25 days

The month with the highest number of rainy days is January (25.7 days).
The month with the least rainy days is August (1.2 days).

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

  • Average daylight in December: 12h and 42min

The month with the longest days is December (Average daylight: 12h and 42min).
The month with the shortest days is June (Average daylight: 11h and 30min).

  • Average sunshine in December: 9h and 54min

The month with the most sunshine is February (Average sunshine: 10h and 24min).
The month with the least sunshine is July (Average sunshine: 7h and 30min).

Average sunshine days in December
Tenau, Indonesia

  • Average sunshine days in December: 4 days

The month with the most sunshine days is August (29.2 days).
The month with the least sunshine days is January (2.1 days).

Average UV index in December
Tenau, Indonesia

  • Average UV index in December: 7

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

Average cloud cover in December
Tenau, Indonesia

  • Average cloud cover in December: 34

The month with the most cloud cover is January (Cloud cover 45).
The months with the least cloud cover are August and September (Cloud cover 8).

Average visibility in December
Tenau, Indonesia

  • Average visibility in December: 10km

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