December weather forecastJemundo, Indonesia
December
Weather in December
December, the first month of the summer in Jemundo, is also a hot month, with temperature in the range of an average low of 26.3°C (79.3°F) and an average high of 31.2°C (88.2°F).Temperature
The arrival of December brings an average high-temperature of a still hot 31.2°C (88.2°F), closely following the temperature pattern of November. Jemundo, during December nights, witnesses an average temperature marginally cooler than its daytime highs, at a warm 26.3°C (79.3°F).Heat index
December's average heat index is evaluated at a sweltering 39°C (102.2°F). Adopt extra safety steps, risk of heat exhaustion and heat cramps is notable. Sustained activity might cause heatstroke.Heat index readings emphasize conditions of light breezes and shaded spots. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a numerical representation of warmth when taking temperature and moisture levels into account. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
The body's innate mechanism to counteract overheating is through perspiration, as it leverages the cooling effects of sweat evaporation. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.
Humidity
The average relative humidity in December in Jemundo is 74%.Rainfall
In December, in Jemundo, the rain falls for 24.7 days. Throughout December, 102mm (4.02") of precipitation is accumulated. Throughout the year, in Jemundo, there are 187.8 rainfall days, and 839mm (33.03") of precipitation is accumulated.Daylight
The month with the longest days in Jemundo is December, with an average of 12h and 30min of daylight.On the first day of the month, sunrise is at 05:02 and sunset at 17:33. On the last day of December, sunrise is at 05:15 and sunset at 17:48 WIB.
Sunshine
In Jemundo, the average sunshine in December is 8.6h.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index in Jemundo. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum UV index of 7 during December leads to these instructions:
Deter overexposure. Protecting against the sun's effects is essential. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Jemundo, Indonesia
- Average high temperature in December: 31.2°C
The warmest month (with the highest average high temperature) is October (32.9°C).
The months with the lowest average high temperature are January, February and July (30.1°C).
- Average low temperature in December: 26.3°C
The month with the highest average low temperature is November (26.5°C).
The coldest month (with the lowest average low temperature) is August (24.2°C).
Average pressure in December
Jemundo, 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
Jemundo, Indonesia
- Average wind speed in December: 7km/h
The windiest month (with the highest average wind speed) is August (9.9km/h).
The calmest month (with the lowest average wind speed) is April (6.3km/h).
Average humidity in December
Jemundo, Indonesia
- Average humidity in December: 74%
The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is October (63%).
Average rainfall in December
Jemundo, Indonesia
- Average rainfall in December: 102mm
The wettest month (with the highest rainfall) is February (179mm).
The driest month (with the least rainfall) is August (4mm).
Average rainfall days in December
Jemundo, Indonesia
- Average rainfall days in December: 24.7 days
The month with the highest number of rainy days is January (27 days).
The month with the least rainy days is August (3.7 days).
Average daylight in December /
Average sunshine in December
Jemundo, 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 36min
The months with the most sunshine are August, September and October (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 8h and 6min).
Average sunshine days in December
Jemundo, Indonesia
- Average sunshine days in December: 5.9 days
The month with the most sunshine days is August (26 days).
The month with the least sunshine days is February (2.8 days).
Average UV index in December
Jemundo, 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
Jemundo, Indonesia
- Average cloud cover in December: 38
The month with the most cloud cover is January (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 11).
Average visibility in December
Jemundo, Indonesia
- Average visibility in December: 10km
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January and February (9km).





