December weather forecastSumput, Indonesia
December
Weather in December
The first month of the summer, December, is still a tropical month in Sumput, Indonesia, with an average temperature ranging between max 31.5°C (88.7°F) and min 24.1°C (75.4°F).Temperature
During December, Sumput observes a subtle ascent to a still tropical 31.5°C (88.7°F) from November's 33.5°C (92.3°F) in the average high-temperature. Sumput, during the month of December, experiences an average low-temperature of 24.1°C (75.4°F).Heat index
Throughout December, the heat index is calculated to be a scorching 41°C (105.8°F). Adopt additional preventive measures, heat cramps and heat exhaustion are potential outcomes. Prolonged activity may trigger heatstroke.Be advised, the heat index considers values for conditions in shade and with a light breeze. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is an aggregate value of air's warmth and moisture to show the human-felt temperature. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. 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.
To offset high temperatures, the human body releases sweat which, upon evaporation, cools it down. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. If heat absorption exceeds the body's cooling ability, body temperature can elevate, resulting in potential thermal illnesses.
Humidity
In Sumput, the average relative humidity in December is 77%.Rainfall
In Sumput, during December, the rain falls for 28.5 days and regularly aggregates up to 193mm (7.6") of precipitation. In Sumput, during the entire year, the rain falls for 218.3 days and collects up to 1409mm (55.47") of precipitation.Daylight
With an average of 12h and 30min of daylight, December has the longest days of the year.On the first day of the month, sunrise is at 05:03 and sunset at 17:34. On the last day of December, in Sumput, sunrise is at 05:16 and sunset at 17:49 WIB.
Sunshine
In Sumput, the average sunshine in December is 7.9h.UV index
The months with the highest UV index in Sumput are February, April through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index of 7 in December converts into 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. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Sumput, 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
Sumput, Indonesia
- Average pressure in December: 1008.7mbar
The month with the highest atmospheric pressure is August (1011.4mbar).
The month with the lowest atmospheric pressure is December (1008.7mbar).
Average wind speed in December
Sumput, 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
Sumput, 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
Sumput, Indonesia
- Average rainfall in December: 193mm
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
Sumput, 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
Sumput, 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: 7h and 54min
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
Sumput, 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
Sumput, 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
Sumput, 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
Sumput, 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).





