December weather forecast
Sememi, Indonesia

December

Weather in December

The first month of the summer, December, is still a hot month in Sememi, Indonesia, with an average temperature ranging between max 31.5°C (88.7°F) and min 24.1°C (75.4°F).

Temperature

With December's advent, Sememi sees an average high-temperature of a still tropical 31.5°C (88.7°F), subtly shifted from November's 33.5°C (92.3°F). Sememi experiences a steady low-temperature of 24.1°C (75.4°F) throughout December.

Heat index

December's heat index is appraised at a scorching 41°C (105.8°F). Exercise heightened safety, heat cramps and heat exhaustion are probable. Persistent activity may provoke heatstroke.
Take note of the fact that heat index values are based on shaded circumstances with light airflows. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a single figure representing how weather conditions feel when combining temperature and humidity. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
To combat high temperatures, the human body perspires and relies on sweat evaporation for cooling. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.

Humidity

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

Rainfall

In Sememi, during December, the rain falls for 28.5 days and regularly aggregates up to 192mm (7.56") of precipitation. Throughout the year, there are 218.1 rainfall days, and 1410mm (55.51") of precipitation is accumulated.

Daylight

December has the longest days of the year, with an average of 12h and 30min of daylight.
On the first day of the month, sunrise is at 05:03 and sunset at 17:33. On the last day of December, sunrise is at 05:16 and sunset at 17:48 WIB.

Sunshine

In Sememi, Indonesia, the average sunshine in December is 7.9h.

UV index

February, April through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the average person.
Note: The maximum daily UV index, 7 in December, converts into the following recommendations:
Guard oneself from overexposure. Defence against sun injury is vital. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Employ a wide-brim hat for potent defense against up to 50% of UV rays.

Frequently asked questions

Is it hot during December?
An average high-temperature, in December, in Sememi, is 31.5°C (88.7°F) and the average low-temperature is 24.1°C (75.4°F). In December, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines relative humidity and air temperature, is appraised at 41°C (105.8°F).
What is the average humidity in December?
The average relative humidity in December in Sememi, Indonesia, is 77%.
How much does it rain in December?
In Sememi, in December, it is raining for 28.5 days, with typically 192mm (7.56") of accumulated precipitation.
When are the longest days?
With an average of 12h and 30min of daylight, December has the longest days of the year.
How many hours of daylight does Sememi have in December?
In December, the average day length is 12h and 32min.
When is the sunrise / sunset in December?
On the first day of December, sunrise is at 05:03 and sunset at 17:33. On the last day of the month, sunrise is at 05:16 and sunset at 17:48 WIB.
How many hours of sunshine does Sememi have in December?
In Sememi, Indonesia, the average sunshine duration in December is 7.9h.
When is the highest UV index?
The months with the highest UV index in Sememi are February, April 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 of 6 to 7 symbolizes a high health threat from unsafe 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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December
Sememi, 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
Sememi, 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
Sememi, 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
Sememi, 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
Sememi, 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
Sememi, 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
Sememi, Indonesia
  • Average daylight in December: 12h and 3min

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 5min

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
Sememi, 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
Sememi, 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
Sememi, 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
Sememi, 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).

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