December weather forecastSinaboi, Indonesia
December
Weather in December
The first month of the winter, December, is still a tropical month in Sinaboi, Indonesia, with an average temperature varying between 30.5°C (86.9°F) and 25°C (77°F).Temperature
Sinaboi's temperature records reveal December as the coldest month, marked by average highs of 30.5°C (86.9°F) and lows of 25°C (77°F).Heat index
The heat index value during December is appraised at a very hot 39°C (102.2°F). Exercise extra preventive actions, heat cramps and heat exhaustion are plausible. Continuous activity could result in heatstroke.Be advised, the heat index considers values for conditions in shade and with a light breeze. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a metric representing the sensation of warmth when air temperature and moisture come together. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.
Humidity
With an average relative humidity of 79%, December is the most humid month.Rainfall
December is the month with the most rainfall. Rain falls for 27 days and accumulates 198mm (7.8") of precipitation.Snowfall
In Sinaboi, snow does not fall in January through August, October through December.Daylight
The month with the shortest days is December, with an average of 12h and 0min of daylight.On the first day of December, sunrise is at 06:05 and sunset at 18:05. On the last day of the month, sunrise is at 06:19 and sunset at 18:19 WIB.
Sunshine
With an average of 7.6h of sunshine, December has the least sunshine of the year.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 unsafe exposure to UV radiation for average individuals.Note: An average UV index of 7 in December transforms into this advice:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Sinaboi, Indonesia
- Average high temperature in December: 30.5°C
The warmest months (with the highest average high temperature) are April, May, August and October (32°C).
The month with the lowest average high temperature is December (30.5°C).
- Average low temperature in December: 25°C
The month with the highest average low temperature is May (26.2°C).
The coldest months (with the lowest average low temperature) are January and February (24.6°C).
Average pressure in December
Sinaboi, Indonesia
- Average pressure in December: 1009.5mbar
The month with the highest atmospheric pressure is January (1010.4mbar).
The month with the lowest atmospheric pressure is May (1008.7mbar).
Average wind speed in December
Sinaboi, Indonesia
- Average wind speed in December: 6.1km/h
The windiest months (with the highest average wind speed) are July and August (7.7km/h).
The calmest month (with the lowest average wind speed) is December (6.1km/h).
Average humidity in December
Sinaboi, Indonesia
- Average humidity in December: 79%
The month with the highest relative humidity is December (79%).
The months with the lowest relative humidity are August and September (71%).
Average rainfall in December
Sinaboi, Indonesia
- Average rainfall in December: 198mm
The wettest month (with the highest rainfall) is December (198mm).
The driest month (with the least rainfall) is July (52mm).
Average rainfall days in December
Sinaboi, Indonesia
- Average rainfall days in December: 27 days
The month with the highest number of rainy days is November (27.3 days).
The month with the least rainy days is June (16.8 days).
Average snowfall in December
Sinaboi, Indonesia
- Average snowfall in December: 0mm
The month with the highest snowfall is September (2mm).
The months with the least snowfall are January, February, March, April, May, June, July, August, October, November and December (0mm).
Average snowfall days in December
Sinaboi, Indonesia
- Average snowfall days in December: 0 days
The month with the highest number of snowfall days is September (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, October, November and December (0 days).
Average daylight in December /
Average sunshine in December
Sinaboi, Indonesia
- Average daylight in December: 12h and 0min
The month with the longest days is June (Average daylight: 12h and 12min).
The month with the shortest days is December (Average daylight: 12h and 0min).
- Average sunshine in December: 7h and 36min
The months with the most sunshine are June and July (Average sunshine: 9h and 0min).
The month with the least sunshine is December (Average sunshine: 7h and 36min).
Average sunshine days in December
Sinaboi, Indonesia
- Average sunshine days in December: 3.3 days
The month with the most sunshine days is June (11.3 days).
The month with the least sunshine days is November (2.4 days).
Average UV index in December
Sinaboi, 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
Sinaboi, Indonesia
- Average cloud cover in December: 48
The month with the most cloud cover is November (Cloud cover 50).
The months with the least cloud cover are June and July (Cloud cover 32).
Average visibility in December
Sinaboi, Indonesia
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and December (10km).
The month with the lowest visibility is November (9km).
