When is the best time to go to Siem Reap

Best time to go
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Worst time to go

The chart above shows the best time of year to visit Siem Reap, Cambodia. These are based on an analysis of weather averages such as temperature, rainfall and number of hours of sunshine. These ratings are based solely on the climate and do not take into account other factors such as accommodation prices and how busy it is likely to be.

Average temperatures in Siem Reap

Siem Reap weather by month

Please note our recommendations for when to visit Siem Reap are based solely on the weather and do not take into accounts accommodation prices, how busy it will be and what events are on.

January

Siem Reap January weather averages
Temp Rain Sunshine Day length
28°C 1mm 9.6hrs 12.2hrs

The climate in Siem Reap during January can be summarized as hot, humid and very dry.

It is perhaps the perfect month to visit Siem Reap, with some extremely good weather at this time of year.

January is in the winter in Siem Reap and is typically the coldest month of the year. Daytime maximum temperatures average around a steamy 31°C (89°F), whilst at night 19°C (66°F) is normal.

On average January is the driest month of the year in Siem Reap with around 1mm 0 inches of rain making it a very dry time to visit.

On the flip side this corresponds to an average of 9.6 hours of sunshine per day.

Siem Reap weather in January »

February

Siem Reap February weather averages
Temp Rain Sunshine Day length
30°C 9mm 9.4hrs 12.4hrs

February in Siem Reap is generally very dry with the temperature being hot.

It is perhaps the perfect month to visit Siem Reap, with some inordinately good weather at this time of year.

February is in the winter in Siem Reap and is typically the 2nd coldest month of the year. Daytime maximum temperatures average around a warm 34°C (93°F), whilst at night 21°C (70°F) is normal.

On average February is the 2nd driest month of the year in Siem Reap with around 9mm 0.4 inches of rain making it a very dry time to visit.

On the flip side this corresponds to an average of 9.4 hours of sunshine per day.

Siem Reap weather in February »

March

Siem Reap March weather averages
Temp Rain Sunshine Day length
32°C 28mm 8.9hrs 12.7hrs

The weather in March in Siem Reap is characteristically very hot and dry.

It is perhaps the perfect month to visit Siem Reap, with some surprisingly good weather at this time of year.

March is in the spring in Siem Reap and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around a warm 36°C (96°F), whilst at night 23°C (74°F) is normal.

On average March is the 3rd driest month of the year in Siem Reap with around 28mm 1.1 inches of rain making it a dry time to visit. This rainfall is typically spread over 4 days, although this may vary considerably.

On the flip side this corresponds to an average of 8.9 hours of sunshine per day.

Siem Reap weather in March »

April

Siem Reap April weather averages
Temp Rain Sunshine Day length
32°C 64mm 8.5hrs 13.1hrs

Siem Reap's weather in April is typically very hot, humid and reasonably dry in nature.

Although outside the main holiday season, there is still plenty of pretty acceptable weather around this time of year. This makes it an okay time to visit Siem Reap.

April is in the spring in Siem Reap and is typically the 4th coldest month of the year. Daytime maximum temperatures average around a steamy 36°C (97°F), whilst at night 24°C (75°F) is normal.

On average April is the 4th driest month of the year in Siem Reap with around 64mm 2.5 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 7 days, although this may vary considerably.

On the flip side this corresponds to an average of 8.5 hours of sunshine per day.

Siem Reap weather in April »

May

Siem Reap May weather averages
Temp Rain Sunshine Day length
31°C 146mm 7.4hrs 13.5hrs

May is a wet, humid month in Siem Reap and the temperature is generally very hot.

Based on weather alone, this is probably a time of year to avoid going to Siem Reap for your holidays. The weather is often relatively bad and not conducive to spending time outdoors.

May is in the spring in Siem Reap and is typically the 5th coldest month of the year. Daytime maximum temperatures average around a steamy 34°C (94°F), whilst at night 25°C (76°F) is normal.

On average May is the 5th driest month of the year in Siem Reap with around 146mm 5.7 inches of rain making it a wet time to visit. This rainfall is typically spread over 15 days, although this may vary considerably.

On the flip side this corresponds to an average of 7.4 hours of sunshine per day.

Siem Reap weather in May »

June

Siem Reap June weather averages
Temp Rain Sunshine Day length
30°C 166mm 6.1hrs 12.2hrs

June in Siem Reap is generally wet with the temperature being very hot.

Based on weather alone, this is probably a time of year to avoid going to Siem Reap for your holidays. The weather is often relatively bad and not conducive to spending time outdoors.

June is in the summer in Siem Reap and is typically the 6th coldest month of the year. Daytime maximum temperatures average around a steamy 33°C (91°F), whilst at night 25°C (76°F) is normal.

On average June is the 6th driest month of the year in Siem Reap with around 166mm 6.6 inches of rain making it a wet time to visit. This rainfall is typically spread over 15 days, although this may vary considerably.

On the flip side this corresponds to an average of 6.1 hours of sunshine per day.

Siem Reap weather in June »

July

Siem Reap July weather averages
Temp Rain Sunshine Day length
29°C 186mm 6hrs 12.4hrs

July in Siem Reap is generally wet with the temperature being very hot.

Based on weather alone, this is probably a time of year to avoid going to Siem Reap for your holidays. The weather is often not a good and not conducive to spending time outdoors.

July is in the summer in Siem Reap and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a steamy 32°C (89°F), whilst at night 24°C (76°F) is normal.

On average July is the 6th wettest month of the year in Siem Reap with around 186mm 7.3 inches of rain making it a wet time to visit. This rainfall is typically spread over 18 days, although this may vary considerably.

On the flip side this corresponds to an average of 6 hours of sunshine per day.

Siem Reap weather in July »

August

Siem Reap August weather averages
Temp Rain Sunshine Day length
29°C 224mm 5.7hrs 12.7hrs

The weather in August in Siem Reap is characteristically hot, humid and very wet.

Based on weather alone, this is probably a time of year to avoid going to Siem Reap for your holidays. The weather is often not a good and not conducive to spending time outdoors.

August is in the summer in Siem Reap and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a steamy 32°C (89°F), whilst at night 24°C (75°F) is normal.

On average August is the 5th wettest month of the year in Siem Reap with around 224mm 8.8 inches of rain making it a very wet time to visit. This rainfall is typically spread over 18 days, although this may vary considerably.

On the flip side this corresponds to an average of 5.7 hours of sunshine per day.

Siem Reap weather in August »

September

Siem Reap September weather averages
Temp Rain Sunshine Day length
28°C 250mm 5.6hrs 13.1hrs

Siem Reap's weather in September is typically hot, humid and very wet in nature.

Based on weather alone, this is probably a time of year to avoid going to Siem Reap for your holidays. The weather is often not a good and not conducive to spending time outdoors.

September is in the fall / autumn in Siem Reap and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a steamy 31°C (88°F), whilst at night 24°C (75°F) is normal.

On average September is the 4th wettest month of the year in Siem Reap with around 250mm 9.8 inches of rain making it a very wet time to visit. This rainfall is typically spread over 18 days, although this may vary considerably.

On the flip side this corresponds to an average of 5.6 hours of sunshine per day.

Siem Reap weather in September »

October

Siem Reap October weather averages
Temp Rain Sunshine Day length
28°C 215mm 7.2hrs 13.5hrs

October is a very wet, humid month in Siem Reap and the temperature is generally hot.

Based on weather alone, this is probably a time of year to avoid going to Siem Reap for your holidays. The weather is often pretty bad and not conducive to spending time outdoors.

October is in the fall / autumn in Siem Reap and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a steamy 31°C (87°F), whilst at night 24°C (74°F) is normal.

On average October is the 3rd wettest month of the year in Siem Reap with around 215mm 8.5 inches of rain making it a very wet time to visit. This rainfall is typically spread over 15 days, although this may vary considerably.

On the flip side this corresponds to an average of 7.2 hours of sunshine per day.

Siem Reap weather in October »

November

Siem Reap November weather averages
Temp Rain Sunshine Day length
27°C 61mm 8.6hrs 12.2hrs

The weather in November in Siem Reap is characteristically hot, humid and reasonably dry.

Although outside the main holiday season, there is still plenty of reasonably acceptable weather around this time of year. This makes it an okay time to visit Siem Reap.

November is in the fall / autumn in Siem Reap and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a steamy 31°C (87°F), whilst at night 22°C (72°F) is normal.

On average November is the 2nd wettest month of the year in Siem Reap with around 61mm 2.4 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 6 days, although this may vary considerably.

On the flip side this corresponds to an average of 8.6 hours of sunshine per day.

Siem Reap weather in November »

December

Siem Reap December weather averages
Temp Rain Sunshine Day length
27°C 7mm 9.3hrs 12.4hrs

December in Siem Reap is generally very dry with the temperature being hot.

It is perhaps the perfect month to visit Siem Reap, with some surprisingly good weather at this time of year.

December is in the winter in Siem Reap and is typically the warmest month of the year. Daytime maximum temperatures average around a muggy 30°C (87°F), whilst at night 20°C (68°F) is normal.

On average December is the wettest month of the year in Siem Reap with around 7mm 0.3 inches of rain making it a very dry time to visit.

On the flip side this corresponds to an average of 9.3 hours of sunshine per day.

Siem Reap weather in December »

Other monthly averages

UV index Best time to go?

Siem Reap weather stats

Siem Reap weather statistics
Hottest month: April 35.7°C 96.3°F
Driest month: January 1mm 0ins
Sunniest month: January 9.6hrs
Coldest month: December 30.1°C 86.2°F
Wettest month: September 250mm 9.8ins
Warmest sea: May 29.9°C 85.8°F
Map showing location of Siem Reap (13.36179, 103.86056) Siem Reap map pin © Google

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