December weather forecastCiwandan, Indonesia
December
Weather in December
December, the first month of the summer in Ciwandan, is also a hot month, with an average temperature ranging between max 30.4°C (86.7°F) and min 25.8°C (78.4°F).Temperature
Ciwandan marks the onset of December with an average high-temperature of a still tropical 30.4°C (86.7°F), subtly divergent from November's 31.2°C (88.2°F). In Ciwandan, the nightly December temperatures experience a slight descent from daily highs to an average low of 25.8°C (78.4°F).Heat index
The heat index for December is computed to be a sweltering 37°C (98.6°F). Implement more preventive measures, heat cramps and heat exhaustion are probable. Heatstroke might result from extended activity.Evaluating the heat index requires understanding its values in the shade and with gentle winds. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
The physiological way the human body responds to excessive heat is by inducing perspiration, using sweat evaporation as a cooling mechanism. When air moisture content is high, the cooling process through evaporation is not as efficient, leading to an ineffective body cooling process and a feeling of overheating. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.
Humidity
In Ciwandan, Indonesia, the average relative humidity in December is 75%.Rainfall
In Ciwandan, during December, the rain falls for 27.4 days and regularly aggregates up to 129mm (5.08") of precipitation. Throughout the year, there are 273 rainfall days, and 1266mm (49.84") of precipitation is accumulated.Daylight
With an average of 12h and 30min of daylight, December has the longest days of the year.On the first day of December in Ciwandan, sunrise is at 05:31 and sunset at 17:58. On the last day of the month, sunrise is at 05:45 and sunset at 18:13 WIB.
Sunshine
In Ciwandan, the average sunshine in December is 9h.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 risk from unsafe exposure to UV radiation for the average person.Note: The UV index of 7 during December leads to these advisories:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Ciwandan, Indonesia
- Average high temperature in December: 30.4°C
The warmest month (with the highest average high temperature) is October (31.6°C).
The month with the lowest average high temperature is January (29.6°C).
- Average low temperature in December: 25.8°C
The months with the highest average low temperature are May and November (26°C).
The coldest month (with the lowest average low temperature) is August (24.5°C).
Average pressure in December
Ciwandan, Indonesia
- Average pressure in December: 1009.2mbar
The month with the highest atmospheric pressure is September (1011mbar).
The month with the lowest atmospheric pressure is December (1009.2mbar).
Average wind speed in December
Ciwandan, Indonesia
- Average wind speed in December: 11.3km/h
The windiest months (with the highest average wind speed) are January and December (11.3km/h).
The calmest month (with the lowest average wind speed) is September (6.2km/h).
Average humidity in December
Ciwandan, Indonesia
- Average humidity in December: 75%
The months with the highest relative humidity are February and March (78%).
The months with the lowest relative humidity are September and October (71%).
Average rainfall in December
Ciwandan, Indonesia
- Average rainfall in December: 129mm
The wettest months (with the highest rainfall) are January and February (180mm).
The driest month (with the least rainfall) is August (29mm).
Average rainfall days in December
Ciwandan, Indonesia
- Average rainfall days in December: 27.4 days
The month with the highest number of rainy days is January (28.8 days).
The month with the least rainy days is August (11.3 days).
Average daylight in December /
Average sunshine in December
Ciwandan, 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 0min
The month with the most sunshine is September (Average sunshine: 9h and 18min).
The months with the least sunshine are June and July (Average sunshine: 7h and 12min).
Average sunshine days in December
Ciwandan, Indonesia
- Average sunshine days in December: 2.3 days
The month with the most sunshine days is August (16.9 days).
The month with the least sunshine days is January (0.6 days).
Average UV index in December
Ciwandan, 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
Ciwandan, Indonesia
- Average cloud cover in December: 48
The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility in December
Ciwandan, Indonesia
- Average visibility in December: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is January (9km).
