December weather forecastGemah, Indonesia
December
Weather in December
The first month of the summer, December, is still a hot month in Gemah, Indonesia, with temperature in the range of an average low of 25.1°C (77.2°F) and an average high of 31°C (87.8°F).Temperature
The onset of December manifests an average high-temperature of a still hot 31°C (87.8°F), demonstrating a minor variation from the preceding month. During the nights in December, Gemah observes an average low-temperature of 25.1°C (77.2°F).Heat index
Throughout December, the heat index is appraised at a blisteringly hot 40°C (104°F). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.One should consider that heat index numbers are for shaded settings and light wind. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is a metric representing the sensation of warmth when air temperature and moisture come together. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.
Humidity
In Gemah, the average relative humidity in December is 76%.Rainfall
In Gemah, in December, during 24.8 rainfall days, 128mm (5.04") of precipitation is typically accumulated. In Gemah, during the entire year, the rain falls for 226.7 days and collects up to 1000mm (39.37") of precipitation.Daylight
December has the longest days of the year, with an average of 12h and 30min of daylight.On the first day of the month, sunrise is at 05:12 and sunset at 17:42. On the last day of December, sunrise is at 05:25 and sunset at 17:56 WIB.
Sunshine
The month with the least sunshine is December, with an average of 8.2h of sunshine.UV index
February through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: In December, the maximum UV index of 7 suggests this advice:
Guard against overexposure. Protection from sun-induced harm is essential. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Gemah, Indonesia
- Average high temperature in December: 31°C
The warmest month (with the highest average high temperature) is October (33.5°C).
The month with the lowest average high temperature is January (29.7°C).
- Average low temperature in December: 25.1°C
The month with the highest average low temperature is November (25.4°C).
The coldest month (with the lowest average low temperature) is July (23°C).
Average pressure in December
Gemah, Indonesia
- Average pressure in December: 1009mbar
The month with the highest atmospheric pressure is September (1011.4mbar).
The month with the lowest atmospheric pressure is December (1009mbar).
Average wind speed in December
Gemah, Indonesia
- Average wind speed in December: 6.9km/h
The windiest month (with the highest average wind speed) is January (10.1km/h).
The calmest month (with the lowest average wind speed) is April (5.8km/h).
Average humidity in December
Gemah, Indonesia
- Average humidity in December: 76%
The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is September (66%).
Average rainfall in December
Gemah, Indonesia
- Average rainfall in December: 128mm
The wettest month (with the highest rainfall) is January (163mm).
The driest month (with the least rainfall) is August (14mm).
Average rainfall days in December
Gemah, Indonesia
- Average rainfall days in December: 24.8 days
The month with the highest number of rainy days is January (25.3 days).
The month with the least rainy days is August (8.9 days).
Average daylight in December /
Average sunshine in December
Gemah, 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: 8h and 12min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is December (Average sunshine: 8h and 12min).
Average sunshine days in December
Gemah, Indonesia
- Average sunshine days in December: 4 days
The month with the most sunshine days is August (19.7 days).
The month with the least sunshine days is November (3 days).
Average UV index in December
Gemah, Indonesia
- Average UV index in December: 7
The months with the highest UV index are February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The month with the lowest UV index is January (UV index 6).
Average cloud cover in December
Gemah, Indonesia
- Average cloud cover in December: 42
The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 20).
Average visibility in December
Gemah, Indonesia
- Average visibility in December: 10km
The months with the highest visibility are June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April and May (9km).





