December weather forecast
Demangan, Indonesia

December

Weather in December

December, the first month of the summer in Demangan, is also a moderately hot month, with an average temperature ranging between max 28.9°C (84°F) and min 24.2°C (75.6°F).

Temperature

Transitioning into December, Demangan experiences an average high-temperature of a still warm 28.9°C (84°F), marking a minor shift from the preceding month. Demangan observes an average low-temperature of 24.2°C (75.6°F) during the slightly cooler nights of December.

Heat index

December's average heat index is estimated at a tropical 34°C (93.2°F). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
The standards for the heat index are set for locations in shade and under light breezes. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a metric representing the sensation of warmth when air temperature and moisture come together. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.

Humidity

In December, the average relative humidity is 80%.

Rainfall

In Demangan, in December, it is raining for 23.2 days, with typically 94mm (3.7") of accumulated precipitation. Throughout the year, there are 246 rainfall days, and 906mm (35.67") of precipitation is accumulated.

Daylight

December has the longest days of the year, with an average of 12h and 36min of daylight.
On the first day of December, sunrise is at 05:11 and sunset at 17:43. On the last day of the month, sunrise is at 05:24 and sunset at 17:58 WIB.

Sunshine

The month with the least sunshine is December, with an average of 7.4h of sunshine.

UV index

The months with the highest UV index are February through May, September 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 unsafe exposure to UV radiation for average individuals.
Note: A maximum daily UV index of 7 during December morphs into the following directions:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.

Frequently asked questions

How hot does it get in December?
The high-temperature, in December, in Demangan, is 28.9°C (84°F), while the low-temperature averages to 24.2°C (75.6°F). In December, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is estimated at 34°C (93.2°F).
What is the average humidity in December?
In Demangan, Indonesia, the average relative humidity in December is 80%.
How much does it rain in December?
In Demangan, in December, it is raining for 23.2 days, with typically 94mm (3.7") of accumulated precipitation.
When are the longest days?
The month with the longest days in Demangan is December, with an average of 12h and 36min of daylight.
What is the average length of the day in December in Demangan?
In Demangan, the average day length in December is 12h and 34min.
What time are sunrise and sunset in December in Demangan?
On the first day of December, sunrise is at 05:11 and sunset at 17:43. On the last day of the month, sunrise is at 05:24 and sunset at 17:58 WIB.
What is the month with the least sunshine?
With an average of 7.4h of sunshine, December has the least sunshine of the year.
How long on average sun shines in December?
In December, the average sunshine duration is 7.4h.
What are the months with the highest UV index?
The months with the highest UV index are February through May, September through December, with an average maximum UV index of 7.
How high is the UV index in December?
In December, the average daily maximum UV index is 7. A UV Index reading of 6 to 7 represents a high health threat from unprotected exposure to UV radiation.
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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December
Demangan, Indonesia
  • Average high temperature in December: 28.9°C

The warmest month (with the highest average high temperature) is October (29.4°C).
The month with the lowest average high temperature is July (27.8°C).

  • Average low temperature in December: 24.2°C

The months with the highest average low temperature are January and November (24.3°C).
The coldest month (with the lowest average low temperature) is August (21.9°C).

Average pressure in December
Demangan, Indonesia
  • Average pressure in December: 1009.1mbar

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

Average wind speed in December
Demangan, Indonesia
  • Average wind speed in December: 9.7km/h

The windiest month (with the highest average wind speed) is August (14.5km/h).
The calmest month (with the lowest average wind speed) is March (8.4km/h).

Average humidity in December
Demangan, Indonesia
  • Average humidity in December: 80%

The months with the highest relative humidity are May and June (82%).
The months with the lowest relative humidity are September and October (79%).

Average rainfall in December
Demangan, Indonesia
  • Average rainfall in December: 94mm

The wettest month (with the highest rainfall) is January (126mm).
The driest month (with the least rainfall) is August (14mm).

Average rainfall days in December
Demangan, Indonesia
  • Average rainfall days in December: 23.2 days

The months with the highest number of rainy days are January, March and November (24.7 days).
The month with the least rainy days is August (11.4 days).

Average daylight in December /
Average sunshine in December
Demangan, Indonesia
  • Average daylight in December: 12h and 4min

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 2min

The month with the most sunshine is February (Average sunshine: 9h and 30min).
The month with the least sunshine is December (Average sunshine: 7h and 24min).

Average sunshine days in December
Demangan, Indonesia
  • Average sunshine days in December: 5.3 days

The month with the most sunshine days is August (11.6 days).
The month with the least sunshine days is November (3.4 days).

Average UV index in December
Demangan, Indonesia
  • Average UV index in December: 7

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

Average cloud cover in December
Demangan, Indonesia
  • Average cloud cover in December: 49

The months with the most cloud cover are January and December (Cloud cover 49).
The month with the least cloud cover is June (Cloud cover 35).

Average visibility in December
Demangan, 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).

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