Climate and monthly weather forecast
Phnom Penh, Cambodia

The buildings in the Royal Palace-yard in Phnom Penh, Cambodia
The buildings in the Royal Palace-yard in Phnom Penh, Cambodia

Weather in January

January, like December, is another hot winter month in Phnom Penh, Cambodia, with temperature in the range of an average low of 21.9°C (71.4°F) and an average high of 31.5°C (88.7°F). In January, the average high-temperature is relatively the same as in December - a still hot 31.5°C (88.7°F). Weather in January »

Weather in February

The last month of the winter, February, is another tropical month in Phnom Penh, Cambodia, with temperature in the range of an average low of 23°C (73.4°F) and an average high of 32.8°C (91°F). In February, the average high-temperature is essentially the same as in January - a still tropical 32.8°C (91°F). Weather in February »

Weather in March

The first month of the spring, March, is also a hot month in Phnom Penh, Cambodia, with an average temperature ranging between min 24.1°C (75.4°F) and max 34.9°C (94.8°F). March and April, with an average high-temperature of 34.9°C (94.8°F), are the warmest months. The average heat index in March is estimated at a life-threatening hot 50.5°C (122.9°F). Weather in March »

Weather in April

April, like March, is a hot spring month in Phnom Penh, Cambodia, with an average temperature ranging between max 34.9°C (94.8°F) and min 25°C (77°F). The warmest months are March and April, with an average high-temperature of 34.9°C (94.8°F). The average heat index in April is estimated at a burning hot 51.7°C (125.1°F). Weather in April »

Weather in May

The last month of the spring, May, is another tropical month in Phnom Penh, Cambodia, with an average temperature fluctuating between 34.3°C (93.7°F) and 25.3°C (77.5°F). In Phnom Penh, Cambodia, the average high-temperature in May is almost the same as in April - a still hot 34.3°C (93.7°F). Weather in May »

Weather in June

June, the first month of the summer in Phnom Penh, is still a tropical month, with an average temperature fluctuating between 33.5°C (92.3°F) and 25°C (77°F). In Phnom Penh, the average high-temperature in June is relatively the same as in May - a still tropical 33.5°C (92.3°F). Weather in June »

Weather in July

July, like June, is a hot summer month in Phnom Penh, Cambodia, with temperature in the range of an average high of 32.5°C (90.5°F) and an average low of 24.7°C (76.5°F). In July, the average high-temperature is essentially the same as in June - a still tropical 32.5°C (90.5°F). Weather in July »

Weather in August

August, the last month of the summer in Phnom Penh, is also a hot month, with an average temperature fluctuating between 32.5°C (90.5°F) and 24.6°C (76.3°F). In August, the average high-temperature remains the same as in July - a still tropical 32.5°C (90.5°F). Weather in August »

Weather in September

September, the first month of the autumn in Phnom Penh, is also a hot month, with an average temperature varying between 24.3°C (75.7°F) and 32.3°C (90.1°F). In September, the average high-temperature is practically the same as in August - a still tropical 32.3°C (90.1°F). Weather in September »

Weather in October

October, like September, is another tropical autumn month in Phnom Penh, Cambodia, with an average temperature varying between 31.1°C (88°F) and 23.8°C (74.8°F). In Phnom Penh, the average high-temperature in October is practically the same as in September - a still tropical 31.1°C (88°F). Weather in October »

Weather in November

The last month of the autumn, November, is another warm month in Phnom Penh, Cambodia, with temperature in the range of an average low of 22.7°C (72.9°F) and an average high of 29.9°C (85.8°F). The coldest month is November, with an average high-temperature of 29.9°C (85.8°F) and an average low-temperature of 22.7°C (72.9°F). The average heat index in November is estimated at a very hot 36.8°C (98.2°F). Weather in November »

Weather in December

The first month of the winter, December, is a hot month in Phnom Penh, Cambodia, with temperature in the range of an average low of 21.7°C (71.1°F) and an average high of 30.1°C (86.2°F). In Phnom Penh, the average high-temperature in December is essentially the same as in November - a tropical 30.1°C (86.2°F). Weather in December »
[Resources]

FAQ

How much does it rain in Phnom Penh?

In Phnom Penh, during the entire year, the rain falls for 153.4 days and collects up to 1635.6mm (64.39") of precipitation.

What is the month with the lowest UV index in Phnom Penh?

The months with the lowest UV index in Phnom Penh are January, November and December, with an average maximum UV index of 10.

What is the least humid month in Phnom Penh?

The months with the lowest humidity in Phnom Penh, Cambodia, are February and March, with an average relative humidity of 71%.

What is the driest month in Phnom Penh?

February is the month with the least rainfall in Phnom Penh, Cambodia. Rain falls for 2.4 days and accumulates 11.5mm (0.45") of precipitation.

When is the highest UV index in Phnom Penh?

February through October, with an average maximum UV index of 12, are months with the highest UV index.

What are the warmest months in Phnom Penh?

March and April, with an average high-temperature of 34.9°C (94.8°F), are warmest months in Phnom Penh, Cambodia.

What month has the most sunshine in Phnom Penh?

With an average of 8.6h of sunshine, March has the most sunshine of the year.

When are the longest days in Phnom Penh?

The month with the longest days in Phnom Penh is June, with an average of 12h and 47min of daylight.

What is the most humid month in Phnom Penh?

September and October, with an average relative humidity of 84%, are most humid months.

What is the month with the least sunshine in Phnom Penh?

September has the least sunshine of the year in Phnom Penh, with an average of 4.3h of sunshine.

What is the rainiest month in Phnom Penh?

The month with the most rainfall in Phnom Penh, Cambodia, is October, when the rain falls for 24 days and typically aggregates up to 318.9mm (12.56") of precipitation.

What is the coldest month in Phnom Penh?

The coldest month is November, with an average high-temperature of 29.9°C (85.8°F) and an average low-temperature of 22.7°C (72.9°F).

What is the month with the shortest days in Phnom Penh?

December has the shortest days of the year in Phnom Penh, with an average of 11h and 28min of daylight.

Is there Daylight Saving Time (DST) in Phnom Penh?

Phnom Penh, Cambodia, does not utilize Daylight Saving Time (DST). +07 timezone is used throughout the entire year.

Average temperature
Phnom Penh, Cambodia

Average temperature - Phnom Penh, Cambodia

The warmest months (with the highest average high temperature) are March and April (34.9°C).
The month with the lowest average high temperature is November (29.9°C).

The month with the highest average low temperature is May (25.3°C).
The coldest month (with the lowest average low temperature) is December (21.7°C).

[Resources]

Average humidity
Phnom Penh, Cambodia

Average humidity - Phnom Penh, Cambodia

The months with the highest relative humidity are September and October (84%).
The months with the lowest relative humidity are February and March (71%).

[Resources]

Average rainfall
Phnom Penh, Cambodia

Average rainfall - Phnom Penh, Cambodia

The wettest month (with the highest rainfall) is October (318.9mm).
The driest month (with the least rainfall) is February (11.5mm).

[Resources]

Average rainfall days
Phnom Penh, Cambodia

Average rainfall days - Phnom Penh, Cambodia

The month with the highest number of rainy days is October (24 days).
The month with the least rainy days is February (2.4 days).

[Resources]

Average daylight / Average sunshine
Phnom Penh, Cambodia

Average daylight / Average sunshine - Phnom Penh, Cambodia

The month with the longest days is June (Average daylight: 12h and 47min).
The month with the shortest days is December (Average daylight: 11h and 28min).

The month with the most sunshine is March (Average sunshine: 8h and 36min).
The month with the least sunshine is September (Average sunshine: 4h and 18min).

[Resources]

Average UV index
Phnom Penh, Cambodia

Average UV index - Phnom Penh, Cambodia

The months with the highest UV index are February, March, April, May, June, July, August, September and October (UV index 12).
The months with the lowest UV index are January, November and December (UV index 10).

[Resources]

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location