Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average sea temperature in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
Bontang's shift into December is marked by a subtle change to a still tropical 30.2°C (86.4°F) from November's 30.8°C (87.4°F) in temperature. Bontang's December nights experience a subtle temperature dip to an average of 25.3°C (77.5°F).Heat index
The heat index value during December is estimated at a torrid 38°C (100.4°F). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.It is essential to grasp that the heat index's numbers are for shade and light wind settings. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
The natural method the human body uses to remove excess heat is by perspiring and letting sweat evaporate. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. When body heat isn't effectively managed, risks of dehydration and overheating amplify.
Humidity
The months with the highest humidity are January and December, with an average relative humidity of 80%.Rainfall
December is the month with the most rainfall. Rain falls for 25 days and accumulates 129mm (5.08") of precipitation.Sea temperature
In December, the average sea temperature is 29°C (84.2°F).Note: Surface water temperatures between 25°C (77°F) and 29°C (84.2°F) offer outstanding conditions for any water activity, providing extreme pleasure for extended periods.
Daylight
The average length of the day in December in Bontang is 12h and 7min.On the first day of the month, sunrise is at 05:55 and sunset at 18:02. On the last day of December, in Bontang, Indonesia, sunrise is at 06:09 and sunset at 18:16 WITA.
Sunshine
In December, the average sunshine in Bontang is 8.5h.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 in Bontang. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the average person.Note: A typical high UV index of 7 in December suggests the following recommendations:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Be careful! The Sun's UV radiation is accentuated by reflecting off sand and water.
Frequently asked questions
Is it hot in Bontang during December?
What are the most humid months in Bontang?
What is the average humidity in December in Bontang?
What is the rainiest month in Bontang?
How much does it rain in Bontang in December?
What is the sea water temperature in December in Bontang?
What is the average length of the day in December in Bontang?
When are sunrise and sunset in December in Bontang?
How long on average sun shines in December in Bontang?
What is the month with the highest UV index in Bontang?
What are the months with the lowest UV index in Bontang?
What is the UV index reading in December in Bontang?
Average temperature in December
Bontang, Indonesia
- Average high temperature in December: 30.2°C
The warmest month (with the highest average high temperature) is October (31.1°C).
The month with the lowest average high temperature is January (29.8°C).
- Average low temperature in December: 25.3°C
The month with the highest average low temperature is May (25.7°C).
The coldest months (with the lowest average low temperature) are August and September (24.8°C).
Average pressure in December
Bontang, Indonesia
- Average pressure in December: 1008.4mbar
The month with the highest atmospheric pressure is September (1009.7mbar).
The months with the lowest atmospheric pressure are November and December (1008.4mbar).
Average wind speed in December
Bontang, Indonesia
- Average wind speed in December: 7.8km/h
The windiest month (with the highest average wind speed) is August (10.2km/h).
The calmest months (with the lowest average wind speed) are May and November (7.6km/h).
Average humidity in December
Bontang, Indonesia
- Average humidity in December: 80%
The months with the highest relative humidity are January and December (80%).
The month with the lowest relative humidity is October (76%).
Average rainfall in December
Bontang, Indonesia
- Average rainfall in December: 129mm
The wettest month (with the highest rainfall) is December (129mm).
The driest month (with the least rainfall) is September (53mm).
Average rainfall days in December
Bontang, Indonesia
- Average rainfall days in December: 25 days
The month with the highest number of rainy days is January (25.3 days).
The month with the least rainy days is September (18.2 days).
Average sea temperature in December
Bontang, Indonesia
- Average sea temperature in December: 29°C
The best month for swimming (with the highest average sea temperature) is May (29.8°C).
The coldest month (with the lowest average sea temperature) is February (28.4°C).
Average daylight in December /
Average sunshine in December
Bontang, Indonesia
- Average daylight in December: 12h and 1min
The month with the longest days is June (Average daylight: 12h and 6min).
The month with the shortest days is October (Average daylight: 12h and 6min).
- Average sunshine in December: 8h and 3min
The month with the most sunshine is September (Average sunshine: 9h and 30min).
The month with the least sunshine is January (Average sunshine: 7h and 48min).
Average sunshine days in December
Bontang, Indonesia
- Average sunshine days in December: 5.1 days
The month with the most sunshine days is September (9.2 days).
The month with the least sunshine days is January (4.8 days).
Average UV index in December
Bontang, 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
Bontang, Indonesia
- Average cloud cover in December: 45
The month with the most cloud cover is January (Cloud cover 47).
The month with the least cloud cover is September (Cloud cover 33).
Average visibility in December
Bontang, 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).
Bontang, Indonesia
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