December weather forecastBubulak, Indonesia

December

Weather in December

December, the first month of the summer in Bubulak, is still a hot month, with an average temperature fluctuating between 30.4°C (86.7°F) and 26.6°C (79.9°F).

Temperature

During December, the average high-temperature is a still tropical 30.4°C (86.7°F), maintaining a close resemblance to that of the preceding month. A consistent average low-temperature of 26.6°C (79.9°F), with a minor variance from the daytime highs, is noted during the nights of December.

Heat index

For December, the heat index is evaluated at a torrid 37°C (98.6°F). Adopt extra preventive measures, the occurrence of heat cramps and heat exhaustion is likely. Heatstroke may follow extended activity.
Understanding the heat index involves considering values for shaded locales with light wind. 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 'feels like' or 'apparent temperature', combines both the air temperature and the humidity level to give a perceived human temperature. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
By perspiring, the human body can shed its excessive warmth since evaporated sweat cools it off. 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. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.

Humidity

The average relative humidity in December is 72%.

Rainfall

In December, the rain falls for 21.5 days. Throughout December, 106mm (4.17") of precipitation is accumulated. In Bubulak, during the entire year, the rain falls for 256.9 days and collects up to 1138mm (44.8") of precipitation.

Daylight

The month with the longest days is December, with an average of 12h and 30min of daylight.
On the first day of the month, sunrise is at 05:27 and sunset at 17:56. On the last day of December, sunrise is at 05:41 and sunset at 18:11 WIB.

Sunshine

In December, the average sunshine is 9.5h.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 7. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the average person.
Note: The maximum UV index of 7 during December leads to these instructions:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Always opt for UVA and UVB-resistant sunglasses on radiant days.

Frequently asked questions

December temperatures vary between a high-temperature of 30.4°C (86.7°F) and a low-temperature of 26.6°C (79.9°F). In December, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines air temperature and relative humidity, is evaluated at 37°C (98.6°F).

In December, the average relative humidity is 72%.

In December, the rain falls for 21.5 days. Throughout December, 106mm (4.17") of precipitation is accumulated.

The month with the longest days is December, with an average of 12h and 30min of daylight.

In Bubulak, the average day length in December is 12h and 30min.

On the first day of December, sunrise is at 05:27 and sunset at 17:56. On the last day of the month, sunrise is at 05:41 and sunset at 18:11 WIB.

In Bubulak, Indonesia, the average sunshine duration in December is 9.5h.

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 December, the average daily maximum UV index is 7. A UV Index of 6 to 7 symbolizes a high hazard to health 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 sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Bubulak, Indonesia

  • Average high temperature in December: 30.4°C

The warmest month (with the highest average high temperature) is October (31°C).
The month with the lowest average high temperature is February (29.5°C).

  • Average low temperature in December: 26.6°C

The month with the highest average low temperature is November (26.9°C).
The coldest month (with the lowest average low temperature) is July (25.4°C).

Average pressure in December
Bubulak, Indonesia

  • Average pressure in December: 1009.2mbar

The month with the highest atmospheric pressure is September (1011mbar).
The month with the lowest atmospheric pressure is December (1009.2mbar).

Average wind speed in December
Bubulak, Indonesia

  • Average wind speed in December: 12.8km/h

The windiest month (with the highest average wind speed) is January (13.6km/h).
The calmest month (with the lowest average wind speed) is November (9.3km/h).

Average humidity in December
Bubulak, Indonesia

  • Average humidity in December: 72%

The month with the highest relative humidity is February (76%).
The months with the lowest relative humidity are September and October (69%).

Average rainfall in December
Bubulak, Indonesia

  • Average rainfall in December: 106mm

The wettest month (with the highest rainfall) is February (145mm).
The driest month (with the least rainfall) is August (40mm).

Average rainfall days in December
Bubulak, Indonesia

  • Average rainfall days in December: 21.5 days

The month with the highest number of rainy days is March (25.5 days).
The month with the least rainy days is August (13.4 days).

Average daylight in December /
Average sunshine in December
Bubulak, 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: 9h and 30min

The month with the most sunshine is March (Average sunshine: 10h and 18min).
The month with the least sunshine is July (Average sunshine: 7h and 18min).

Average sunshine days in December
Bubulak, Indonesia

  • Average sunshine days in December: 8.7 days

The month with the most sunshine days is August (14.3 days).
The month with the least sunshine days is April (4 days).

Average UV index in December
Bubulak, 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
Bubulak, Indonesia

  • Average cloud cover in December: 43

The month with the most cloud cover is January (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 21).

Average visibility in December
Bubulak, 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).