Phnom Penh weather in July
In July, Phnom Penh has an average high of 31 °C87 °F and an average low of 24 °C75 °F, with about 163 mm6.4 in of precipitation. It is the 7th warmest month of the year and ranks 5th for precipitation.
How July compares with other months
Compared with June, July is 0.7 °C1.2 °F cooler on average and drier by 27 mm1.1 in. Compared with August, July is about the same temperature. Daylight lasts about 12.7 hours around the middle of the month. Average relative humidity is 84% and the average cloud amount 88%.
Is July a good time to visit Phnom Penh?
July is not among the most comfortable months by our comfort score: it is hot (average high 31 °C87 °F), it is fairly wet (163 mm6.4 in) and it is humid (84%). The most comfortable months in Phnom Penh are December.
What to wear in July
For Phnom Penh in July, pack very light, breathable clothing, a sun hat and plenty of water and an umbrella or light rain jacket.
July in nearby places
| Place | High °C°F | Low °C°F | Precip. mmin |
|---|---|---|---|
| Phnom Penh | 3187 | 2475 | 1636.4 |
| Takeo | 3087 | 2475 | 1716.7 |
| Tân Châu | 3087 | 2475 | 1716.7 |
| Hồng Ngự | 3187 | 2475 | 1546.1 |
| Tịnh Biên | 3086 | 2577 | 1887.4 |
| Hòa Thành | 3187 | 2475 | 1756.9 |
| Hà Tiên | 2984 | 2679 | 32313 |
| Long Xuyên | 3086 | 2476 | 1696.6 |
| Trảng Bàng | 3087 | 2475 | 1827.2 |
Other months in Phnom Penh
- January34 °C93 °F / 22 °C71 °F
- February36 °C97 °F / 23 °C74 °F
- March37 °C99 °F / 25 °C77 °F
- April36 °C98 °F / 26 °C79 °F
- May34 °C93 °F / 25 °C78 °F
- June31 °C89 °F / 24 °C76 °F
- July31 °C87 °F / 24 °C75 °F
- August30 °C87 °F / 24 °C75 °F
- September30 °C86 °F / 24 °C75 °F
- October30 °C86 °F / 24 °C75 °F
- November31 °C87 °F / 23 °C73 °F
- December32 °C89 °F / 22 °C71 °F
Frequently asked questions
How warm is Phnom Penh in July?
In July the average high in Phnom Penh is 31 °C (87 °F) and the average low is 24 °C (75 °F).
Does it rain a lot in Phnom Penh in July?
On average about 163 mm (6.4 in) of precipitation falls in July; it ranks 5th of the 12 months.
Is July the warmest month in Phnom Penh?
No. The warmest month in Phnom Penh is March, with an average high of 37 °C (99 °F). The coldest month is December, with an average low of 22 °C (71 °F).
How long is the day in Phnom Penh in July?
In the middle of July the day in Phnom Penh lasts about 12.7 hours from sunrise to sunset. The value is calculated from the position of the city and the sun.
How humid is Phnom Penh in July?
The average relative humidity in July is about 84%. Combined with warm days, it can feel muggy.
How cloudy is Phnom Penh in July?
On average about 88% of the sky is covered by cloud in July. This is the mean cloud amount from satellite data, not the number of sunny days.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.