December weather forecast
Kranji, Indonesia

The first month of the summer, December, is also a hot month in Kranji, Indonesia, with temperature in the range of an average low of 24.5°C (76.1°F) and an average high of 30.8°C (87.4°F).

Temperature

December's presence records an average high-temperature of a still tropical 30.8°C (87.4°F), closely mirroring November's climate. During December, the temperature is averaged to a low of 24.5°C (76.1°F) at night.

Heat index

December's heat index is evaluated at a sweltering 38°C (100.4°F). Undertake extra safety actions, heat cramps and heat exhaustion are expected. Heatstroke may result from lengthy activity.
It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', gives an indication of how one might feel in terms of heat after considering humidity. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
One way the human body deals with excessive warmth is by perspiring and allowing sweat to evaporate. Greater relative humidity lessens the rate of evaporation, thus decreasing the body's heat dispersal, which gives rise to a sensation of overheating. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.

Humidity

In Kranji, the average relative humidity in December is 74%.

Rainfall

In Kranji, in December, it is raining for 22.1 days, with typically 105mm (4.13") of accumulated precipitation. In Kranji, during the entire year, the rain falls for 242.8 days and collects up to 1039mm (40.91") of precipitation.

Daylight

December has the longest days of the year, with an average of 12h and 30min of daylight.
On the first day of December in Kranji, sunrise is at 05:27 and sunset at 17:54. On the last day of the month, sunrise is at 05:40 and sunset at 18:09 WIB.

Sunshine

In December, the average sunshine is 8.7h.

UV index

The months with the highest UV index are February through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum daily UV index, 7 in December, converts into the following recommendations:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.