December weather forecastKayumanis, Indonesia
December weather forecast for Kayumanis, Indonesia: December, the first month of the summer in Kayumanis, is also a hot month, with an average temperature varying between 30.6°C (87.1°F) and 26°C (78.8°F). In December, the average heat index, which combines relative humidity and air temperature, is calculated to be 37°C (98.6°F).
December
Weather in December
December, the first month of the summer in Kayumanis, is also a hot month, with an average temperature varying between 30.6°C (87.1°F) and 26°C (78.8°F).Temperature
The commencement of December introduces an average high-temperature of a still hot 30.6°C (87.1°F), closely mirroring the preceding month. Kayumanis registers a small shift from peak daytime temperatures, with a consistent average low-temperature of 26°C (78.8°F) during December.Heat index
In December, the heat index is calculated to be a very hot 37°C (98.6°F). Implement additional safety measures to avoid heat cramps and heat exhaustion. Persistent activity might trigger heatstroke.In terms of the heat index, values are set with light wind and shade conditions in mind. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is achieved by amalgamating air temperature with the relative humidity readings. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
Perspiring is a crucial mechanism for the human body, allowing it to release excessive warmth through evaporating sweat. With a high level of moisture in the air, the evaporation process becomes less efficient, preventing the body from cooling down efficiently and resulting in a sensation of overheating. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.
Humidity
In December, the average relative humidity is 71%.Rainfall
In Kayumanis, in December, it is raining for 23.9 days, with typically 123mm (4.84") of accumulated precipitation. Throughout the year, there are 252 rainfall days, and 1150mm (45.28") of precipitation is accumulated.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 05:27 and sunset at 17:56. On the last day of December, sunrise is at 05:41 and sunset at 18:10 WIB.
Sunshine
In December, the average sunshine is 9.3h.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index. 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 health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The daily high UV index of 7 in December translates into this advice:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Kayumanis, Indonesia
- Average high temperature in December: 30.6°C
The warmest month (with the highest average high temperature) is October (31.8°C).
The months with the lowest average high temperature are January and February (29.8°C).
- Average low temperature in December: 26°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 (24.7°C).
Average pressure in December
Kayumanis, Indonesia
- Average pressure in December: 1009.2mbar
The month with the highest atmospheric pressure is September (1011.1mbar).
The month with the lowest atmospheric pressure is December (1009.2mbar).
Average wind speed in December
Kayumanis, Indonesia
- Average wind speed in December: 10.8km/h
The windiest month (with the highest average wind speed) is January (12.4km/h).
The calmest month (with the lowest average wind speed) is November (8.1km/h).
Average humidity in December
Kayumanis, Indonesia
- Average humidity in December: 71%
The month with the highest relative humidity is February (76%).
The month with the lowest relative humidity is October (67%).
Average rainfall in December
Kayumanis, Indonesia
- Average rainfall in December: 123mm
The wettest month (with the highest rainfall) is March (144mm).
The driest month (with the least rainfall) is August (35mm).
Average rainfall days in December
Kayumanis, Indonesia
- Average rainfall days in December: 23.9 days
The month with the highest number of rainy days is March (26.1 days).
The month with the least rainy days is August (11.6 days).
Average daylight in December /
Average sunshine in December
Kayumanis, 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 48min).
- Average sunshine in December: 9h and 18min
The month with the most sunshine is March (Average sunshine: 10h and 12min).
The month with the least sunshine is July (Average sunshine: 7h and 18min).
Average sunshine days in December
Kayumanis, Indonesia
- Average sunshine days in December: 5.7 days
The month with the most sunshine days is August (16 days).
The month with the least sunshine days is February (2.6 days).
Average UV index in December
Kayumanis, 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
Kayumanis, Indonesia
- Average cloud cover in December: 43
The month with the most cloud cover is January (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility in December
Kayumanis, Indonesia
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).





