December weather forecastBumi, Indonesia

December

Weather in December

The first month of the summer, December, is still a warm month in Bumi, Indonesia, with an average temperature ranging between min 22.1°C (71.8°F) and max 28.9°C (84°F).

Temperature

The onset of December notes an average high-temperature of a still warm 28.9°C (84°F), subtly shifted from November's 29.9°C (85.8°F). Bumi experiences a consistent average temperature of 22.1°C (71.8°F) throughout the nights in December.

Heat index

December's mean heat index is appraised at a sweltering 35°C (95°F). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.
Records show heat index calculations are tailored for shaded regions and mild winds. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is the result of factoring in humidity to the air temperature, indicating perceived warmth. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. 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.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. When body heat isn't effectively managed, risks of dehydration and overheating amplify.

Humidity

The average relative humidity in December in Bumi is 83%.

Rainfall

In Bumi, Indonesia, in December, during 29 rainfall days, 230mm (9.06") of precipitation is typically accumulated. In Bumi, during the entire year, the rain falls for 276.6 days and collects up to 2049mm (80.67") of precipitation.

Daylight

With an average of 12h and 36min of daylight, December has the longest days of the year.
On the first day of December, sunrise is at 05:09 and sunset at 17:41. On the last day of the month, sunrise is at 05:23 and sunset at 17:56 WIB.

Sunshine

The months with the least sunshine in Bumi are January and December, with an average of 7h of sunshine.

UV index

The months with the lowest UV index in Bumi are January through August, November and December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: In December, a daily maximum UV index of 6 leads to the following instructions:
Shun overexposure. Protection from sun ravages is indispensable. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Boost your sun resistance with garments that are densely woven yet spacious.

Frequently asked questions

An average high-temperature, in December, in Bumi, is 28.9°C (84°F) and the average low-temperature is 22.1°C (71.8°F). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines air temperature and relative humidity, in December is appraised at 35°C (95°F).

The average relative humidity in December is 83%.

In December, the rain falls for 29 days. Throughout December, 230mm (9.06") of precipitation is accumulated.

With an average of 12h and 36min of daylight, December has the longest days of the year in Bumi.

In December, the average day length in Bumi is 12h and 34min.

On the first day of December, sunrise is at 05:09 and sunset at 17:41. On the last day of the month, sunrise is at 05:23 and sunset at 17:56 WIB.

January and December, with an average of 7h of sunshine, are months with the least sunshine in Bumi, Indonesia.

In December, the average sunshine duration in Bumi, Indonesia, is 7h.

January through August, November and December, with an average maximum UV index of 6, are months with the lowest UV index in Bumi, Indonesia.

In December, the average daily maximum UV index in Bumi, Indonesia, is 6. A UV Index reading of 6 to 7 represents a high health threat from exposure to the Sun's 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 sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Bumi, Indonesia

  • Average high temperature in December: 28.9°C

The warmest month (with the highest average high temperature) is October (31.4°C).
The month with the lowest average high temperature is July (28.4°C).

  • Average low temperature in December: 22.1°C

The month with the highest average low temperature is November (22.7°C).
The coldest month (with the lowest average low temperature) is August (20.3°C).

Average pressure in December
Bumi, Indonesia

  • Average pressure in December: 1009mbar

The month with the highest atmospheric pressure is September (1011.7mbar).
The month with the lowest atmospheric pressure is December (1009mbar).

Average wind speed in December
Bumi, Indonesia

  • Average wind speed in December: 7.9km/h

The windiest month (with the highest average wind speed) is August (9.3km/h).
The calmest month (with the lowest average wind speed) is April (5.6km/h).

Average humidity in December
Bumi, Indonesia

  • Average humidity in December: 83%

The months with the highest relative humidity are January, February, March and April (85%).
The months with the lowest relative humidity are September and October (74%).

Average rainfall in December
Bumi, Indonesia

  • Average rainfall in December: 230mm

The wettest month (with the highest rainfall) is March (313mm).
The driest month (with the least rainfall) is August (29mm).

Average rainfall days in December
Bumi, Indonesia

  • Average rainfall days in December: 29 days

The month with the highest number of rainy days is January (30.5 days).
The month with the least rainy days is August (8.9 days).

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

  • Average daylight in December: 12h and 36min

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 0min

The months with the most sunshine are August and September (Average sunshine: 9h and 12min).
The months with the least sunshine are January and December (Average sunshine: 7h and 0min).

Average sunshine days in December
Bumi, Indonesia

  • Average sunshine days in December: 1.2 days

The month with the most sunshine days is August (19.4 days).
The month with the least sunshine days is February (0.2 days).

Average UV index in December
Bumi, Indonesia

  • Average UV index in December: 6

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

Average cloud cover in December
Bumi, Indonesia

  • Average cloud cover in December: 53

The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 33).

Average visibility in December
Bumi, Indonesia

  • Average visibility in December: 8km

The months with the highest visibility are June, July, August, September and October (9km).
The months with the lowest visibility are January, February, March, April, May, November and December (8km).