December weather forecastPersiakan, Indonesia
December
Weather in December
December, the first month of the winter in Persiakan, is still a hot month, with an average temperature varying between 23.9°C (75°F) and 30°C (86°F).Temperature
The months of January and December are noted for their lowest temperatures, with an average high-temperature of 30°C (86°F).Heat index
The heat index in December is estimated at a torrid 38°C (100.4°F). Undertake special precautions, the probability of heat exhaustion and heat cramps is high. Prolonged activity may provoke heatstroke.Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. When relative humidity is heightened, it slows the rate of evaporation, thereby decreasing the body's ability to shed heat and creating a sensation of overheating. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.
Humidity
December is the most humid month, with an average relative humidity of 82%.Rainfall
In Persiakan, during December, the rain falls for 30 days and regularly aggregates up to 176mm (6.93") of precipitation. Throughout the year, there are 326.9 rainfall days, and 1594mm (62.76") of precipitation is accumulated.Daylight
The month with the shortest days is December, with an average of 11h and 54min of daylight.On the first day of December, sunrise is at 06:14 and sunset at 18:10. On the last day of the month, sunrise is at 06:28 and sunset at 18:24 WIB.
Sunshine
In December, the average sunshine is 7.9h.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 estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for average individuals.Note: In December, the average maximum UV index of 7 translates into the following recommendations:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Persiakan, Indonesia
- Average high temperature in December: 30°C
The warmest month (with the highest average high temperature) is June (32.1°C).
The months with the lowest average high temperature are January and December (30°C).
- Average low temperature in December: 23.9°C
The months with the highest average low temperature are April and May (24.6°C).
The coldest months (with the lowest average low temperature) are January and February (23.3°C).
Average pressure in December
Persiakan, Indonesia
- Average pressure in December: 1010mbar
The month with the highest atmospheric pressure is January (1010.7mbar).
The month with the lowest atmospheric pressure is May (1009.4mbar).
Average wind speed in December
Persiakan, Indonesia
- Average wind speed in December: 6.1km/h
The windiest months (with the highest average wind speed) are January and February (6.3km/h).
The calmest months (with the lowest average wind speed) are May, September and October (5.4km/h).
Average humidity in December
Persiakan, Indonesia
- Average humidity in December: 82%
The month with the highest relative humidity is December (82%).
The month with the lowest relative humidity is March (77%).
Average rainfall in December
Persiakan, Indonesia
- Average rainfall in December: 176mm
The wettest month (with the highest rainfall) is October (183mm).
The driest month (with the least rainfall) is July (93mm).
Average rainfall days in December
Persiakan, Indonesia
- Average rainfall days in December: 30 days
The month with the highest number of rainy days is December (30 days).
The month with the least rainy days is July (23.2 days).
Average daylight in December /
Average sunshine in December
Persiakan, Indonesia
- Average daylight in December: 11h and 54min
The month with the longest days is June (Average daylight: 12h and 18min).
The month with the shortest days is December (Average daylight: 11h and 54min).
- Average sunshine in December: 7h and 54min
The months with the most sunshine are June and July (Average sunshine: 9h and 0min).
The month with the least sunshine is November (Average sunshine: 7h and 36min).
Average sunshine days in December
Persiakan, Indonesia
- Average sunshine days in December: 0.3 days
The month with the most sunshine days is July (5.7 days).
The month with the least sunshine days is November (0 days).
Average UV index in December
Persiakan, 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
Persiakan, Indonesia
- Average cloud cover in December: 46
The month with the most cloud cover is November (Cloud cover 48).
The months with the least cloud cover are March, June and July (Cloud cover 33).
Average visibility in December
Persiakan, Indonesia
- Average visibility in December: 9km
The months with the highest visibility are February, March, June and August (10km).
The months with the lowest visibility are January, April, May, July, September, October, November and December (9km).





