December weather forecastBolon, Indonesia
December weather forecast for Bolon, Indonesia: December, the first month of the summer in Bolon, is still a warm month, with an average temperature fluctuating between 24.2°C (75.6°F) and 28.9°C (84°F). At the start of December, Bolon's average high-temperature reaches a still moderately hot 28.9°C (84°F), subtly different from the preceding month.
December
Weather in December
December, the first month of the summer in Bolon, is still a warm month, with an average temperature fluctuating between 24.2°C (75.6°F) and 28.9°C (84°F).Temperature
At the start of December, Bolon's average high-temperature reaches a still moderately hot 28.9°C (84°F), subtly different from the preceding month. Bolon reports an average low temperature of 24.2°C (75.6°F) in December, a minor decrease from the day's highs.Heat index
Throughout December, the heat index is computed to be a hot 34°C (93.2°F). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.Heat index evaluations are typically in the context of light winds and shaded environments. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is the result of factoring in humidity to the air temperature, indicating perceived warmth. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
Humidity
In Bolon, the average relative humidity in December is 80%.Rainfall
In Bolon, in December, it is raining for 23.2 days, with typically 94mm (3.7") of accumulated precipitation. Throughout the year, there are 245 rainfall days, and 906mm (35.67") of precipitation is accumulated.Daylight
December has the longest days of the year, with an average of 12h and 36min of daylight.On the first day of December, sunrise is at 05:10 and sunset at 17:42. On the last day of the month, sunrise is at 05:23 and sunset at 17:56 WIB.
Sunshine
With an average of 7.4h of sunshine, December has the least sunshine of the year.UV index
February through May, September through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: A daily high UV index of 7 in December leads to these guidelines:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Bolon, Indonesia
- Average high temperature in December: 28.9°C
The warmest month (with the highest average high temperature) is October (29.4°C).
The month with the lowest average high temperature is July (27.8°C).
- Average low temperature in December: 24.2°C
The months with the highest average low temperature are January and November (24.3°C).
The coldest month (with the lowest average low temperature) is August (21.9°C).
Average pressure in December
Bolon, Indonesia
- Average pressure in December: 1009.1mbar
The months with the highest atmospheric pressure are August and September (1011.9mbar).
The month with the lowest atmospheric pressure is December (1009.1mbar).
Average wind speed in December
Bolon, Indonesia
- Average wind speed in December: 9.7km/h
The windiest month (with the highest average wind speed) is August (14.5km/h).
The calmest month (with the lowest average wind speed) is March (8.4km/h).
Average humidity in December
Bolon, Indonesia
- Average humidity in December: 80%
The months with the highest relative humidity are May and June (82%).
The months with the lowest relative humidity are September and October (79%).
Average rainfall in December
Bolon, Indonesia
- Average rainfall in December: 94mm
The wettest month (with the highest rainfall) is January (126mm).
The driest month (with the least rainfall) is August (14mm).
Average rainfall days in December
Bolon, Indonesia
- Average rainfall days in December: 23.2 days
The months with the highest number of rainy days are January, March and November (24.7 days).
The month with the least rainy days is August (11.4 days).
Average daylight in December /
Average sunshine in December
Bolon, 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 24min
The month with the most sunshine is February (Average sunshine: 9h and 30min).
The month with the least sunshine is December (Average sunshine: 7h and 24min).
Average sunshine days in December
Bolon, Indonesia
- Average sunshine days in December: 5.3 days
The month with the most sunshine days is August (11.6 days).
The month with the least sunshine days is November (3.4 days).
Average UV index in December
Bolon, Indonesia
- Average UV index in December: 7
The months with the highest UV index are February, March, April, May, September, October, November and December (UV index 7).
The months with the lowest UV index are January, June, July and August (UV index 6).
Average cloud cover in December
Bolon, Indonesia
- Average cloud cover in December: 49
The months with the most cloud cover are January and December (Cloud cover 49).
The month with the least cloud cover is June (Cloud cover 35).
Average visibility in December
Bolon, 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).
