December weather forecastManggar, Indonesia

December

Weather in December

December, the first month of the summer in Manggar, is still a warm month, with an average temperature varying between 29.1°C (84.4°F) and 26.9°C (80.4°F).

Temperature

The transition from November to December brings an average high-temperature of a still warm 29.1°C (84.4°F), barely different from November's 29.6°C (85.3°F). Manggar encounters an average temperature dip to a still moderately hot 26.9°C (80.4°F) throughout December, subtly lower than its daytime maximum.

Heat index

The heat index for December is computed to be a tropical 34°C (93.2°F). Greater preventive actions are needed, heat exhaustion and heat cramps are likely. Persistent activity could provoke heatstroke.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.

Humidity

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

Rainfall

December is the month with the most rainfall. Rain falls for 27.1 days and accumulates 156mm (6.14") of precipitation.

Sea temperature

In December, the average sea temperature is 29.3°C (84.7°F).
Note: Water temperatures from 25°C (77°F) to 29°C (84.2°F) make swimming, diving, and similar activities highly pleasurable and enjoyable for long periods without discomfort.

Daylight

December has the longest days of the year, with an average of 12h and 18min of daylight.
On the first day of December, sunrise is at 05:27 and sunset at 17:44. On the last day of the month, sunrise is at 05:41 and sunset at 17:58 WIB.

Sunshine

December has the least sunshine of the year, with an average of 7.3h of sunshine.

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 are January through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: An average UV index of 7 in December transforms into this advice:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Caution! Sand and water reflections can notably increase the UV radiation intensity.

Updated: Aug 9, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The high-temperature during December is 29.1°C (84.4°F) and the low-temperature is 26.9°C (80.4°F). In December, the average heat index (a.k.a. 'real feel', 'feels like'), which combines air temperature and relative humidity, is computed to be 34°C (93.2°F).

In December, the average relative humidity is 77%.

The month with the most rainfall is December, when the rain falls for 27.1 days and typically aggregates up to 156mm (6.14") of precipitation.

In Manggar, during December, the rain falls for 27.1 days and regularly aggregates up to 156mm (6.14") of precipitation.

In December, the average sea temperature is 29.3°C (84.7°F). For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

December has the longest days of the year in Manggar, with an average of 12h and 18min of daylight.

In Manggar, the average day length in December is 12h and 17min.

In December, on the first day of the month, sunrise is at 05:27 and sunset at 17:44. On the last day of the month, sunrise is at 05:41 and sunset at 17:58 WIB.

With an average of 7.3h of sunshine, December has the least sunshine of the year.

In Manggar, the average sunshine duration in December is 7.3h.

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

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

In Manggar, Indonesia, the average daily maximum UV index in December is 7. A UV Index reading of 6 to 7 represents a high health vulnerability 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

29.6°C

29.1°C

28.8°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

8.5km/h

12.9km/h

17.1km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

25.1

27.1

26.4

Average sea temperature

Average daylight

Average sunshine

Average sunshine days

3.3

3.8

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Manggar, Indonesia

Average high temperature in December: 29.1°C

The warmest months (with the highest average high temperature) are May and October (30.3°C).
The months with the lowest average high temperature are January and February (28.8°C).

Average low temperature in December: 26.9°C

The month with the highest average low temperature is May (27.3°C).
The coldest months (with the lowest average low temperature) are February, July, August and September (26.6°C).

Average pressure in December
Manggar, Indonesia

Average pressure in December: 1008.8mbar

The month with the highest atmospheric pressure is September (1010.1mbar).
The months with the lowest atmospheric pressure are May, November and December (1008.8mbar).

Average wind speed in December
Manggar, Indonesia

Average wind speed in December: 12.1km/h

The windiest month (with the highest average wind speed) is January (16.6km/h).
The calmest month (with the lowest average wind speed) is April (7.3km/h).

Average humidity in December
Manggar, Indonesia

Average humidity in December: 77%

The month with the highest relative humidity is February (79%).
The months with the lowest relative humidity are September and October (74%).

Average rainfall in December
Manggar, Indonesia

Average rainfall in December: 156mm

The wettest month (with the highest rainfall) is December (156mm).
The driest month (with the least rainfall) is September (43mm).

Average rainfall days in December
Manggar, Indonesia

Average rainfall days in December: 27.1 days

The month with the highest number of rainy days is December (27.1 days).
The month with the least rainy days is September (13.7 days).

Average sea temperature in December
Manggar, Indonesia

Average sea temperature in December: 29.3°C

The best month for swimming (with the highest average sea temperature) is May (29.8°C).
The coldest months (with the lowest average sea temperature) are January and February (28.3°C).

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

Average daylight in December: 12h and 18min

The month with the longest days is December (Average daylight: 12h and 18min).
The month with the shortest days is June (Average daylight: 12h and 0min).

Average sunshine in December: 7h and 18min

The month with the most sunshine is March (Average sunshine: 9h and 48min).
The month with the least sunshine is December (Average sunshine: 7h and 18min).

Average sunshine days in December
Manggar, Indonesia

Average sunshine days in December: 3.3 days

The month with the most sunshine days is September (14.2 days).
The month with the least sunshine days is December (3.3 days).

Average UV index in December
Manggar, 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
Manggar, Indonesia

Average cloud cover in December: 49

The month with the most cloud cover is December (Cloud cover 49).
The month with the least cloud cover is September (Cloud cover 25).

Average visibility in December
Manggar, 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).