December weather forecast
Sendangsari, Indonesia

The first month of the summer, December, is also a moderately hot month in Sendangsari, Indonesia, with temperature in the range of an average high of 28.7°C (83.7°F) and an average low of 22.1°C (71.8°F).

Temperature

Sendangsari's weather in December, with an average high-temperature of a still moderately hot 28.7°C (83.7°F), subtly shifts from November's 29.1°C (84.4°F). An average nighttime temperature of 22.1°C (71.8°F) is noted in Sendangsari, Indonesia, during the month of December.

Heat index

December's average heat index is evaluated at a very hot 35°C (95°F). Take more preventive steps, risk of heat exhaustion and heat cramps is elevated. Long activity may culminate in heatstroke.
For clarity, heat index numbers account for light winds and areas under shade. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', evaluates the perceived heat by adding the effect of moisture in the air. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 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.
The physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. In conditions of both high temperature and humidity (a high heat index), sweating is limited and the perception of heat is enhanced. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.

Humidity

The average relative humidity in December in Sendangsari is 84%.

Rainfall

In Sendangsari, during December, the rain falls for 29.5 days and regularly aggregates up to 219mm (8.62") of precipitation. In Sendangsari, during the entire year, the rain falls for 290.8 days and collects up to 2049mm (80.67") of precipitation.

Daylight

December has the longest days of the year, with an average of 12h and 36min of daylight.
On the first day of December, sunrise is at 05:11 and sunset at 17:44. On the last day of the month, sunrise is at 05:24 and sunset at 17:59 WIB.

Sunshine

The month with the least sunshine is December, with an average of 7.1h of sunshine.

UV index

January through September, November and December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the average person.
Note: The UV index of 6 in December translates into these instructions:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.