December weather forecast
Kalumpang, Malaysia

The first month of the winter, December, is also a moderately hot month in Kalumpang, Malaysia, with temperature in the range of an average low of 21.5°C (70.7°F) and an average high of 29.8°C (85.6°F).

Temperature

Kalumpang's coldest month, December, registers temperatures that range from a high of 29.8°C (85.6°F) to a low of 21.5°C (70.7°F).

Heat index

For December, the heat index is calculated to be a torrid 38°C (100.4°F). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.
Data suggests that the heat index is set for environments in shade and with a light wind. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a measure of how hot it feels when the actual air humidity is factored in. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
Perspiration is the body's default response to elevated temperatures, as it promotes the evaporation of sweat to achieve cooling. With higher relative humidity, the rate of evaporation is reduced, resulting in increased heat retention in the body compared to drier air. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

November and December, with an average relative humidity of 85%, are the most humid months in Kalumpang.

Rainfall

In Kalumpang, in December, it is raining for 25.4 days, with typically 118mm (4.65") of accumulated precipitation. In Kalumpang, during the entire year, the rain falls for 310.8 days and collects up to 1623mm (63.9") of precipitation.

Daylight

December has the shortest days of the year in Kalumpang, with an average of 11h and 54min of daylight.
On the first day of December in Kalumpang, sunrise is at 7:04 am and sunset at 7:00 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 7:14 pm +08.

Sunshine

November and December, with an average of 7h of sunshine, are months with the least sunshine.

UV index

In Kalumpang, the average daily maximum UV index in December is 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the average person.
Note: During December, 6 as the daily maximum UV index converts into the following advice:
Guard oneself from overexposure. Defence against sun injury is vital. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.