December weather forecast
Cimahi, Indonesia

December's weather in Cimahi is characterized by substantial rainfall, recording a higher average of 79mm (3.11"). Consistent with the previous month, the weather remains warm and a bit heavy on humidity. The city slips into a cyclic routine of warm days and cool nights. With the increase in showers, the pressure records a downward trend to 1009.2mb. The visibility remains unaffected, illuminating the city's intricate architecture and lively streets.

Temperature

With December's arrival, Cimahi's weather records an average high-temperature of a still tropical 31.1°C (88°F), marking little difference from November's 32.3°C (90.1°F). Cimahi witnesses a consistent average low-temperature of 24.3°C (75.7°F) throughout December.

Heat index

Throughout December, the heat index is estimated at a fiery hot 39°C (102.2°F). Exercise enhanced safety steps, heat cramps and heat exhaustion are probable. Heatstroke could be a result of sustained activity.
Note that heat index values are valued for light wind and location in the shade. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a metric representing the sensation of warmth when air temperature and moisture come together. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. An increase in relative humidity retards evaporation, subsequently reducing the body's heat removal rate and leading to a sensation of being overly warm. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.

Humidity

In December, the average relative humidity is 74%.

Rainfall

In Cimahi, in December, during 18.1 rainfall days, 79mm (3.11") of precipitation is typically accumulated. In Cimahi, during the entire year, the rain falls for 139.1 days and collects up to 518mm (20.39") of precipitation.

Daylight

December has the longest days of the year in Cimahi, with an average of 12h and 30min of daylight.
On the first day of December in Cimahi, sunrise is at 05:24 and sunset at 17:53. On the last day of the month, sunrise is at 05:37 and sunset at 18:08 WIB.

Sunshine

In Cimahi, 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 in Cimahi. 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 threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: The daily high UV index of 7 during December translates into the following recommendations:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.