Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
December
Weather in December
Temperature
December is the coldest month, with an average high-temperature of 30.2°C (86.4°F) and an average low-temperature of 24.1°C (75.4°F).Heat index
In December, the average heat index is computed to be a very hot 38°C (100.4°F). Take extra safety measures to prevent heat exhaustion and heat cramps. Heatstroke could follow lengthy activity.When referencing the heat index, its values are suitable for shady environments and light breezes. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
To combat high temperatures, the human body perspires and relies on sweat evaporation for cooling. Elevated relative humidity disrupts typical body cooling by reducing the evaporation rate, consequently decreasing the body's cooling rate and enhancing the feeling of heat. The body is at risk of dehydration and related complications when it fails to shed excessive heat.
Humidity
December is the most humid month, with an average relative humidity of 80%.Rainfall
In Martubung, in December, it is raining for 26.8 days, with typically 131mm (5.16") of accumulated precipitation. In Martubung, during the entire year, the rain falls for 305.3 days and collects up to 1283mm (50.51") of precipitation.Daylight
The month with the shortest days in Martubung is December, with an average of 11h and 54min of daylight.On the first day of the month, sunrise is at 06:16 and sunset at 18:12. On the last day of December, sunrise is at 06:30 and sunset at 18:25 WIB.
Sunshine
In December, the average sunshine is 8.1h.UV index
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. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: During December, 7 as the daily maximum UV index converts into the following advice:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year?
Is it hot during December?
What is the most humid month?
What is the average humidity in December in Martubung?
How much does it rain in December?
What is the month with the shortest days?
What is the average length of the day in December?
When is the sunrise / sunset in December?
How many hours of sunshine does Martubung have in December?
What is the month with the highest UV index?
What are the months with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Martubung, Indonesia
- Average high temperature in December: 30.2°C
The warmest months (with the highest average high temperature) are May and June (32.5°C).
The month with the lowest average high temperature is December (30.2°C).
- Average low temperature in December: 24.1°C
The months with the highest average low temperature are April and May (25.1°C).
The coldest month (with the lowest average low temperature) is January (23.8°C).
Average pressure in December
Martubung, Indonesia
- Average pressure in December: 1010.2mbar
The months with the highest atmospheric pressure are January and February (1010.8mbar).
The month with the lowest atmospheric pressure is May (1009.5mbar).
Average wind speed in December
Martubung, Indonesia
- Average wind speed in December: 6.9km/h
The windiest month (with the highest average wind speed) is February (7.1km/h).
The calmest months (with the lowest average wind speed) are May, September and October (6.1km/h).
Average humidity in December
Martubung, Indonesia
- Average humidity in December: 80%
The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is March (75%).
Average rainfall in December
Martubung, Indonesia
- Average rainfall in December: 131mm
The wettest month (with the highest rainfall) is October (165mm).
The driest month (with the least rainfall) is February (57mm).
Average rainfall days in December
Martubung, Indonesia
- Average rainfall days in December: 26.8 days
The month with the highest number of rainy days is August (28.8 days).
The month with the least rainy days is February (18.7 days).
Average daylight in December /
Average sunshine in December
Martubung, Indonesia
- Average daylight in December: 11h and 5min
The month with the longest days is June (Average daylight: 12h and 18min).
The month with the shortest days is December (Average daylight: 11h and 54min).
- Average sunshine in December: 8h and 1min
The months with the most sunshine are March and June (Average sunshine: 9h and 12min).
The month with the least sunshine is November (Average sunshine: 7h and 54min).
Average sunshine days in December
Martubung, Indonesia
- Average sunshine days in December: 2.7 days
The month with the most sunshine days is February (7.6 days).
The month with the least sunshine days is September (0.9 days).
Average UV index in December
Martubung, 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
Martubung, Indonesia
- Average cloud cover in December: 45
The month with the most cloud cover is November (Cloud cover 46).
The month with the least cloud cover is March (Cloud cover 30).
Average visibility in December
Martubung, Indonesia
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September and December (10km).
The months with the lowest visibility are October and November (9km).
