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, with average temperatures reaching a high of 30°C (86°F) and a low of 20°C (68°F), is the coldest month.

Rainfall

In Krong Siem Reap, in December, during 2 rainfall days, 7mm (0.28") of precipitation is typically accumulated. In Krong Siem Reap, during the entire year, the rain falls for 121 days and collects up to 1357mm (53.43") of precipitation.

Daylight

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

Sunshine

January, February and December, with an average of 9h of sunshine, are months with the most sunshine.

UV index

With an average maximum UV index of 9, December is the month with the lowest UV index. A UV Index of 8 to 10 symbolizes a very high health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: The maximum daily UV index of 9 in December interprets into the following recommendations:
Be proactive in protecting yourself; skin and eyes can be harmed if left unprotected. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Always opt for UVA and UVB-resistant sunglasses on radiant days. Even on overcast days, ensure the application and frequent reapplication of sunscreen with at least an SPF 30, especially post swim or outdoor exercise.