December weather forecast
Kejambon, Indonesia

The first month of the summer, December, is still a tropical month in Kejambon, Indonesia, with temperature in the range of an average high of 30.1°C (86.2°F) and an average low of 25.5°C (77.9°F).

Temperature

December's presence records an average high-temperature of a still tropical 30.1°C (86.2°F), closely mirroring November's climate. In Kejambon, December is characterized by an average low-temperature of 25.5°C (77.9°F), indicating a minor drop from daytime highs.

Heat index

In December, the average heat index is estimated at a very hot 37°C (98.6°F). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', quantifies the warmth felt when relative humidity is considered. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
Evaporating sweat, an outcome of perspiration, is key in assisting the human body to moderate its temperature. 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. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

In December, the average relative humidity in Kejambon is 75%.

Rainfall

In December, in Kejambon, the rain falls for 25.8 days. Throughout December, 141mm (5.55") of precipitation is accumulated. In Kejambon, during the entire year, the rain falls for 233.4 days and collects up to 1073mm (42.24") of precipitation.

Daylight

The month with the longest days in Kejambon is December, with an average of 12h and 30min of daylight.
On the first day of December, sunrise is at 05:17 and sunset at 17:47. On the last day of the month, sunrise is at 05:30 and sunset at 18:02 WIB.

Sunshine

The month with the least sunshine is December, with an average of 8.2h of sunshine.

UV index

The months with the highest UV index in Kejambon, Indonesia, are January through December, with an average maximum UV index of 7. January through December, with an average maximum UV index of 7, are months with the lowest UV index in Kejambon. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In December, the maximum UV index of 7 suggests this advice:
Ward off overexposure. Defence against solar harm is crucial. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.