Phnom Penh weather in March
In March, Phnom Penh has an average high of 37 °C99 °F and an average low of 25 °C77 °F, with about 30 mm1.2 in of precipitation. It is the 2nd warmest month of the year and ranks 9th for precipitation.
How March compares with other months
Compared with February, March is 1.5 °C2.7 °F warmer on average and wetter by 19 mm0.7 in. Compared with April, March is about the same temperature and drier by 32 mm1.3 in. Daylight lasts about 12.0 hours around the middle of the month. Average relative humidity is 54% and the average cloud amount 56%.
Is March a good time to visit Phnom Penh?
March is not among the most comfortable months by our comfort score: it is hot (average high 37 °C99 °F). The most comfortable months in Phnom Penh are December.
What to wear in March
For Phnom Penh in March, pack very light, breathable clothing, a sun hat and plenty of water.
March in nearby places
| Place | High °C°F | Low °C°F | Precip. mmin |
|---|---|---|---|
| Phnom Penh | 3799 | 2577 | 301.2 |
| Takeo | 3799 | 2476 | 291.2 |
| Tân Châu | 3799 | 2576 | 291.2 |
| Hồng Ngự | 3799 | 2476 | 180.7 |
| Tịnh Biên | 3697 | 2475 | 291.1 |
| Hòa Thành | 38100 | 2476 | 140.6 |
| Hà Tiên | 3392 | 2577 | 532.1 |
| Long Xuyên | 3698 | 2474 | 190.7 |
| Trảng Bàng | 3799 | 2475 | 160.6 |
Nearby places that are more than 1 °C1.8 °F cooler: Hà Tiên and Long Xuyên.
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 March?
In March the average high in Phnom Penh is 37 °C (99 °F) and the average low is 25 °C (77 °F).
Does it rain a lot in Phnom Penh in March?
On average about 30 mm (1.2 in) of precipitation falls in March; it ranks 9th of the 12 months.
Is March the warmest month in Phnom Penh?
Yes. March is the warmest month in Phnom Penh. The coldest month is December, with an average low of 22 °C (71 °F).
How long is the day in Phnom Penh in March?
In the middle of March the day in Phnom Penh lasts about 12.0 hours from sunrise to sunset. The value is calculated from the position of the city and the sun.
How humid is Phnom Penh in March?
The average relative humidity in March is about 54%. This is a long-term average for the whole day.
How cloudy is Phnom Penh in March?
On average about 56% of the sky is covered by cloud in March. 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.