December weather forecast
Labuan, Malaysia

December, the first month of the winter in Labuan, is also a moderately hot month, with temperature in the range of an average high of 29.8°C (85.6°F) and an average low of 23.5°C (74.3°F).

Temperature

In December, the average high-temperature is almost the same as in November - a moderately hot 29.8°C (85.6°F). In Labuan, in December, the average low-temperature is 23.5°C (74.3°F).

Heat index

The average heat index in December is computed to be a very hot 38°C (100.4°F). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Note that heat index values are valued for light wind and location in the shade. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'feels like', 'apparent temperature', or 'felt air temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. Additional factors like activity, pregnancy, metabolic differences, and wind affect individual temperature impact. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. If the body can not disperse the excessive heat and body temperature reaches conditions of hyperthermia, above 37.5°C (99.5°F) to 38.3°C (100.9°F), thermal conditions are potentially life-threatening.

Humidity

The months with the highest humidity in Labuan are January, March and December, with an average relative humidity of 82%.

Rainfall

The month with the most rainfall is December, when the rain falls for 27.5 days and typically aggregates up to 160mm (6.3") of precipitation.

Daylight

The month with the shortest days in Labuan is December, with an average of 11h and 49min of daylight.
On the first day of the month, sunrise is at 6:12 am and sunset at 6:03 pm. On the last day of December, in Labuan, sunrise is at 6:27 am and sunset at 6:16 pm +08.

Sunshine

In December, the average sunshine is 8.3h.

UV index

The months with the highest UV index in Labuan are January through December, with an average maximum UV index of 7. The months with the lowest UV index in Labuan are January through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: The daily maximum UV index of 7 in December interpret into the following advice:
Take precautions against overexposure. Protection against sun damage is needed. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.