Monthly weather forecast and climate
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 a hot winter month in Phnom Penh, Cambodia, with temperature in the range of an average high of 31.5°C (88.7°F) and an average low of 21.9°C (71.4°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 average temperature fluctuating between 23°C (73.4°F) and 32.8°C (91°F). In Phnom Penh, 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

March, the first month of the spring, in Phnom Penh, is still a tropical month, with temperature in the range of an average high of 34.9°C (94.8°F) and an average low of 24.1°C (75.4°F). The warmest months are March and April, with an average high-temperature of 34.9°C (94.8°F). The average heat index is appraised at a blazing hot 50.5°C (122.9°F). Weather in March »

Weather in April

April, like March, is another tropical spring month in Phnom Penh, Cambodia, with temperature in the range of an average low of 25°C (77°F) and an average high of 34.9°C (94.8°F). The warmest months are March and April, with an average high-temperature of 34.9°C (94.8°F). In April, the average heat index is appraised at a blazing 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 average temperature ranging between min 25.3°C (77.5°F) and max 34.3°C (93.7°F). In Phnom Penh, 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

The first month of the summer, June, is still a hot month in Phnom Penh, Cambodia, with temperature in the range of an average high of 33.5°C (92.3°F) and an average low of 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 average temperature varying between 32.5°C (90.5°F) and 24.7°C (76.5°F). In July, the average high-temperature is practically the same as in June - a still hot 32.5°C (90.5°F). Weather in July »

Weather in August

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

Weather in September

The first month of the autumn, September, is still a hot month in Phnom Penh, Cambodia, with average temperature fluctuating between 24.3°C (75.7°F) and 32.3°C (90.1°F). In Phnom Penh, 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, the same as September, in Phnom Penh, Cambodia, is another tropical autumn month, with average temperature fluctuating between 31.1°C (88°F) and 23.8°C (74.8°F). In Phnom Penh, the average high-temperature is essentially the same as in September - a still hot 31.1°C (88°F). Weather in October »

Weather in November

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

Weather in December

December, the first month of the winter, in Phnom Penh, is a tropical month, with average temperature varying between 30.1°C (86.2°F) and 21.7°C (71.1°F). In December, the average high-temperature is almost the same as in November - a hot 30.1°C (86.2°F). Weather in December »
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FAQ

How many days does it rain in Phnom Penh?

Throughout the year, in Phnom Penh, there are 153.4 rainfall days, and 1635.6mm (64.39") of precipitation is accumulated.

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

Months with the shortest days are January and December, with an average of 11.5h of daylight.

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

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

What are the least humid months in Phnom Penh?

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. Rain falls for 2.4 days and accumulates 11.5mm (0.45") of precipitation.

What are the months with the highest UV index in Phnom Penh?

Months with the highest UV index in Phnom Penh are February through October, with an average maximum UV index of 12.

What is the warmest month in Phnom Penh?

Warmest months are March and April, with an average high-temperature of 34.9°C (94.8°F).

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?

With an average of 12.8h of daylight, June has the longest days of the year.

What are the most humid months 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, Cambodia, with an average of 4.3h of sunshine.

What is the rainiest month in Phnom Penh?

October is the month with the most rainfall in Phnom Penh, Cambodia. Rain falls for 24 days and accumulates 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).

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).

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Average humidity
Phnom Penh, Cambodia

Average humidity - Phnom Penh, Cambodia

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

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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).

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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).

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Average daylight / Average sunshine
Phnom Penh, Cambodia

Average daylight / Average sunshine - Phnom Penh, Cambodia

The month with the longest days is June (Average daylight: 12.8h).
Months with the shortest days are January and December (Average daylight: 11.5h).

The month with the most sunshine is March (Average sunshine: 8.6h).
The month with the least sunshine is September (Average sunshine: 4.3h).

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Average UV index
Phnom Penh, Cambodia

Average UV index - Phnom Penh, Cambodia

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

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