Tomorrow in Siem Reap looks
patchy rain nearby, with a high of 89°
and an overnight low of 76°.
There is a 85% chance of rain - plan accordingly.
Winds top out near 7 mph,
and the UV index reaches 10 (very high).
Siem Reap has a tropical wet-and-dry climate.
April is the warmest month, with average highs of 94°,
and December the coldest, when nights fall to around 71°.
September brings the most rain, on about 27 days,
while March is the sunniest, with 11.1 hours of sunshine a day.
Over a whole year it rains on roughly 193 days.
September, at 12.8 inches (324 mm) over about 27 days. January is the driest month, at 19 mm (0.7 in).
When is Siem Reap at its hottest?
April, averaging 94°F (34°C) by day and 78°F (26°C) overnight. The hottest single day in our 2015-2024 record for this location reached 104°F (40°C).
What is the coldest month in Siem Reap?
December, with highs of 86°F (30°C) and lows near 71°F (22°C). The coldest day in the 2015-2024 record fell to 57°F (14°C).
Is Siem Reap hot in summer?
April averages 94°F (34°C). That is serious heat, and the decade record for this location is 104°F (40°C).
Is Siem Reap humid?
Relative humidity averages 75% across the year, which reads as fairly humid. Paired with April heat, muggy afternoons are routine.
What is the best month to go to Siem Reap?
Aim for November to February if you get the choice: humidity and rainfall are at their lowest, which is what actually varies here, and highs average 88°F (31°C) against roughly 6 wet days a month. For the same question asked the other way round, see where else is warm in November.
Is there snow in Siem Reap?
Effectively no. The 2015-2024 record for Siem Reap shows no regular measurable snowfall.
How does Siem Reap compare to other cities?
Its 82°F (28°C) annual average is warmer than 98% of the 3496 cities in our dataset, which are all measured on the same 2015-2024 basis.