December weather forecast
Krong Siem Reap, Cambodia

Closing out the year, December represents a pretty straightforward weather outlook in Krong Siem Reap. This month indicates the full onset of the dry season, with a significant drop in rainfall reaching its lowest point of just 7mm (0.28"). The temperature range remains stable when matched with November's measures. A shorter daylight duration compared to November contributes to the transition into the dry period. Even though the UV index remains high, it does recede to its lowest yearly value, signaling some relief from the year’s high radiation levels.

Temperature

December proves to be the coldest month in Krong Siem Reap, recording an average maximum temperature of 30°C (86°F) and a minimum temperature of 20°C (68°F).

Rainfall

In Krong Siem Reap, during December, the rain falls for 2 days and regularly aggregates up to 7mm (0.28") of precipitation. Throughout the year, there are 121 rainfall days, and 1357mm (53.43") of precipitation is accumulated.

Daylight

The month with the shortest days is December, with an average of 11h and 24min of daylight.
On the first day of the month, sunrise is at 06:11 and sunset at 17:35. On the last day of December, in Krong Siem Reap, sunrise is at 06:27 and sunset at 17:48 +07.

Sunshine

The months with the most sunshine in Krong Siem Reap are January, February and December, with an average of 9h of sunshine.

UV index

The month with the lowest UV index is December, with an average maximum UV index of 9. A UV Index value of 8 to 10 symbolizes a very high threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: A maximum daily UV index of 9 during December morphs into the following directions:
Ensure you act responsibly. Without precautions, skin and eyes can suffer. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Broad-spectrum sunscreen with an SPF of 30 or more should be applied liberally every two hours and directly after outdoor activities or swimming.