December weather forecast
Sandakan, Malaysia

Adorned with the holiday spirit, December in Sandakan also features the year’s highest rainfall. The monsoon peaks with average rainfall soaring to 462mm (18.19"), marking a high in the wet season. The heavy showers though do not deter the celebration mood that fills the air throughout Sandakan. Coupled with the unwavering warm temperature, December remains a month full of life despite the heavy rain. As the year concludes, one can fully appreciate the robustness of Malaysia's tropical climate in Sandakan.

Temperature

During December, Sandakan observes a subtle ascent to a warm 29.8°C (85.6°F) from November's 30.7°C (87.3°F) in the average high-temperature. An average low-temperature of 23.4°C (74.1°F) is noted during the nights in December in Sandakan.

Rainfall

December is the month with the most rainfall. Rain falls for 19 days and accumulates 462mm (18.19") of precipitation.

Sea temperature

In Sandakan, the average seawater temperature in December is 28.7°C (83.7°F).
Note: Swimming, diving, and other activities in water temperatures between 25°C (77°F) and 29°C (84.2°F) are thought to be quite enjoyable and satisfying for extended periods, with no discomfort.

Daylight

The month with the shortest days is December, with an average of 11h and 48min of daylight.
On the first day of the month, sunrise is at 6:02 am and sunset at 5:50 pm. On the last day of December, in Sandakan, sunrise is at 6:16 am and sunset at 6:04 pm +08.

Sunshine

In December, the average sunshine is 5.2h.

UV index

December is the month with the lowest UV index in Sandakan, with an average maximum UV index of 11. A UV Index of 11, and more, symbolizes an extreme health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum daily UV index of 11 during December translates into the following directions:
Employ all crucial safeguards, unprotected skin could burn rapidly. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Even on overcast days, apply and frequently reapply a sunscreen with SPF 30 or more, specifically after a swim or outdoor workout. Attention! The reflection of both water and sand can increase the intensity of UV rays.