December weather forecastSemawut, Indonesia

December

Weather in December

The first month of the summer, December, is still a tropical month in Semawut, Indonesia, with an average temperature fluctuating between 31.5°C (88.7°F) and 24.1°C (75.4°F).

Temperature

December commences with an average high-temperature of a still hot 31.5°C (88.7°F), showing little deviation from November's 33.5°C (92.3°F). Semawut records a mean low-temperature of 24.1°C (75.4°F) in December.

Heat index

Throughout December, the heat index is computed to be a blisteringly hot 41°C (105.8°F). Incorporate special precautions, risk of heat exhaustion and heat cramps is substantial. Sustained activity could cause heatstroke.
Observations indicate that the heat index values are for shady locations with light wind. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', determines the feeling of heat when you account for the relative humidity. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled by perspiration. An elevated level of relative humidity hinders evaporation, leading to decreased heat elimination from the body, inducing a sensation of excess heat. When heat surpasses the body's release mechanisms, dehydration and overheating risks become pronounced.

Humidity

In Semawut, the average relative humidity in December is 77%.

Rainfall

In Semawut, Indonesia, during December, the rain falls for 28.5 days and regularly aggregates up to 192mm (7.56") of precipitation. In Semawut, during the entire year, the rain falls for 218.1 days and collects up to 1410mm (55.51") of precipitation.

Daylight

December has the longest days of the year, with an average of 12h and 30min of daylight.
On the first day of December, sunrise is at 05:03 and sunset at 17:34. On the last day of the month, sunrise is at 05:16 and sunset at 17:49 WIB.

Sunshine

The average sunshine in December is 7.9h.

UV index

The months with the highest UV index are February, April through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the average person.
Note: In December, the maximum UV index of 7 suggests these recommendations:
Deflect overexposure. Sun protection is a necessity. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.

Updated: Aug 21, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The high-temperature, in December, in Semawut, records 31.5°C (88.7°F), while the low-temperature is 24.1°C (75.4°F). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in December is computed to be 41°C (105.8°F).

In December, the average relative humidity is 77%.

In Semawut, in December, during 28.5 rainfall days, 192mm (7.56") of precipitation is typically accumulated.

December has the longest days of the year in Semawut, with an average of 12h and 30min of daylight.

In Semawut, the average day length in December is 12h and 33min.

In December, on the first day of the month, sunrise is at 05:03 and sunset at 17:34. On the last day of the month, sunrise is at 05:16 and sunset at 17:49 WIB.

The average sunshine duration in December is 7.9h.

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

The average daily maximum UV index in December in Semawut is 7. A UV Index estimate of 6 to 7 represents a high health threat from exposure to Sun's UV rays.

Today

Tomorrow

Long-term

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

Nov

December

Jan

Average high temperature

33.5°C

31.5°C

30.2°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

6.7km/h

7km/h

8.4km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

4.4

1.4

0.8

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Semawut, Indonesia

Average high temperature in December: 31.5°C

The warmest month (with the highest average high temperature) is October (34.6°C).
The month with the lowest average high temperature is February (30.1°C).

Average low temperature in December: 24.1°C

The month with the highest average low temperature is November (24.9°C).
The coldest months (with the lowest average low temperature) are July and August (21.8°C).

Average pressure in December
Semawut, Indonesia

Average pressure in December: 1008.7mbar

The months with the highest atmospheric pressure are August and September (1011.4mbar).
The month with the lowest atmospheric pressure is December (1008.7mbar).

Average wind speed in December
Semawut, Indonesia

Average wind speed in December: 6.3km/h

The windiest month (with the highest average wind speed) is September (7.7km/h).
The calmest month (with the lowest average wind speed) is April (5.4km/h).

Average humidity in December
Semawut, Indonesia

Average humidity in December: 77%

The month with the highest relative humidity is February (84%).
The months with the lowest relative humidity are September and October (62%).

Average rainfall in December
Semawut, Indonesia

Average rainfall in December: 192mm

The wettest month (with the highest rainfall) is February (273mm).
The driest month (with the least rainfall) is August (6mm).

Average rainfall days in December
Semawut, Indonesia

Average rainfall days in December: 28.5 days

The month with the highest number of rainy days is January (30.1 days).
The month with the least rainy days is August (4 days).

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

Average daylight in December: 12h and 30min

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

Average sunshine in December: 7h and 54min

The months with the most sunshine are August, September and October (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 7h and 6min).

Average sunshine days in December
Semawut, Indonesia

Average sunshine days in December: 1.4 days

The month with the most sunshine days is August (26.5 days).
The month with the least sunshine days is February (0.3 days).

Average UV index in December
Semawut, Indonesia

Average UV index in December: 7

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

Average cloud cover in December
Semawut, Indonesia

Average cloud cover in December: 44

The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are August and September (Cloud cover 17).

Average visibility in December
Semawut, Indonesia

Average visibility in December: 9km

The months with the highest visibility are June, July, August, September, October and November (10km).
The months with the lowest visibility are January, February and March (8km).