December weather forecastCisi'ih, Indonesia
December weather forecast for Cisi'ih, Indonesia: The first month of the summer, December, is also a hot month in Cisi'ih, Indonesia, with an average temperature fluctuating between 30.4°C (86.7°F) and 24.6°C (76.3°F). The average heat index, which calculates the temperature value influenced by the moisture in the air, in December is appraised at 38°C (100.4°F).
December
Weather in December
The first month of the summer, December, is also a hot month in Cisi'ih, Indonesia, with an average temperature fluctuating between 30.4°C (86.7°F) and 24.6°C (76.3°F).Temperature
As Cisi'ih transitions into December, the average high-temperature stands at a still hot 30.4°C (86.7°F), offering little variation from the preceding month. Throughout December, Cisi'ih experiences a low-temperature average of 24.6°C (76.3°F).Heat index
Throughout December, the heat index is appraised at a torrid 38°C (100.4°F). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.Observations indicate that the heat index values are for shady locations with light wind. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', comes about by integrating the temperature readings with the humidity levels. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
Perspiring is the body's way of cooling down, particularly by allowing sweat to evaporate and take the heat with it. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. The body is at risk of dehydration and related complications when it fails to shed excessive heat.
Humidity
In December, the average relative humidity is 77%.Rainfall
In Cisi'ih, in December, it is raining for 27.5 days, with typically 156mm (6.14") of accumulated precipitation. Throughout the year, there are 291.3 rainfall days, and 1460mm (57.48") of precipitation is accumulated.Sea temperature
In Cisi'ih, the average seawater temperature in December is 29.2°C (84.6°F).Note: Between the temperatures of 25°C (77°F) and 29°C (84.2°F), water is considered very warm, providing pleasure in water activities without discomfort over lengthy periods.
Daylight
With an average of 12h and 30min of daylight, December has the longest days of the year.On the first day of December, sunrise is at 05:29 and sunset at 17:59. On the last day of the month, sunrise is at 05:42 and sunset at 18:13 WIB.
Sunshine
The average sunshine in December is 9.1h.UV index
February through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the average person.Note: A maximum high daily UV index of 7 during December translates into the following directions:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. During bright days, sunglasses that offer UVA and UVB defense are recommended. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Cisi'ih, Indonesia
- Average high temperature in December: 30.4°C
The warmest month (with the highest average high temperature) is October (32.1°C).
The month with the lowest average high temperature is January (29.8°C).
- Average low temperature in December: 24.6°C
The month with the highest average low temperature is May (24.8°C).
The coldest month (with the lowest average low temperature) is August (23.1°C).
Average pressure in December
Cisi'ih, Indonesia
- Average pressure in December: 1009.3mbar
The month with the highest atmospheric pressure is September (1011.2mbar).
The month with the lowest atmospheric pressure is December (1009.3mbar).
Average wind speed in December
Cisi'ih, Indonesia
- Average wind speed in December: 9km/h
The windiest month (with the highest average wind speed) is January (9.4km/h).
The calmest month (with the lowest average wind speed) is August (5km/h).
Average humidity in December
Cisi'ih, Indonesia
- Average humidity in December: 77%
The months with the highest relative humidity are February and March (80%).
The months with the lowest relative humidity are September and October (71%).
Average rainfall in December
Cisi'ih, Indonesia
- Average rainfall in December: 156mm
The wettest month (with the highest rainfall) is March (189mm).
The driest month (with the least rainfall) is August (45mm).
Average rainfall days in December
Cisi'ih, Indonesia
- Average rainfall days in December: 27.5 days
The month with the highest number of rainy days is January (29.4 days).
The month with the least rainy days is August (14.3 days).
Average sea temperature in December
Cisi'ih, Indonesia
- Average sea temperature in December: 29.2°C
The best month for swimming (with the highest average sea temperature) is March (29.6°C).
The coldest month (with the lowest average sea temperature) is September (27.2°C).
Average daylight in December /
Average sunshine in December
Cisi'ih, 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: 9h and 6min
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 0min).
Average sunshine days in December
Cisi'ih, Indonesia
- Average sunshine days in December: 1.8 days
The month with the most sunshine days is August (14 days).
The month with the least sunshine days is February (0.7 days).
Average UV index in December
Cisi'ih, 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
Cisi'ih, Indonesia
- Average cloud cover in December: 46
The month with the most cloud cover is January (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in December
Cisi'ih, Indonesia
- Average visibility in December: 9km
The months with the highest visibility are May, June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, April, November and December (9km).





