Capital city, Cambodia
Phnom Penh weather by month and the best time to visit
When to go to Phnom Penh
Nov–Feb is dry and coolest. Mar–May is very hot; Jun–Oct is rainy with flooded streets and fewer visitors. Khmer New Year in April shuts the city.
Phnom Penh weather by month
Average daily high, rainfall and conditions.
- Jan34°16 mm
- Feb36°11 mm
- Mar37°30 mm
- Apr36°62 mm
- May34°129 mm
- Jun32°190 mm
- Jul31°163 mm
- Aug30°167 mm
- Sep30°190 mm
- Oct30°167 mm
- Nov30°89 mm
- Dec32°28 mm
Monthly averages
| Month | High | Low | Rain | Humidity | Conditions |
|---|---|---|---|---|---|
| January | 34°C93°F | 22°C71°F | 16 mm | 61% | Hot |
| February | 36°C97°F | 23°C74°F | 11 mm | 53% | Very hot |
| March | 37°C99°F | 25°C77°F | 30 mm | 54% | Very hot |
| April | 36°C98°F | 26°C79°F | 62 mm | 60% | Very hot |
| May | 34°C93°F | 25°C78°F | 129 mm | 74% | Hot |
| June | 32°C89°F | 24°C76°F | 190 mm | 82% | Rainy |
| July | 31°C87°F | 24°C75°F | 163 mm | 84% | Rainy |
| August | 30°C87°F | 24°C75°F | 167 mm | 85% | Rainy |
| September | 30°C86°F | 24°C75°F | 190 mm | 86% | Rainy |
| October | 30°C86°F | 24°C74°F | 167 mm | 86% | Rainy |
| November | 30°C87°F | 23°C73°F | 89 mm | 82% | Pleasant |
| December | 32°C89°F | 22°C71°F | 28 mm | 71% | Pleasant |
Best months across Cambodia
| Place | Best months | Warmest month |
|---|---|---|
| Siem Reap | Nov–Feb | Mar (36°C) |
| Phnom Penh | Nov–Feb | Mar (37°C) |
| Koh Rong | Nov–Mar | May (30°C) |
| Kampot | Nov–Feb | Mar (33°C) |
| Sihanoukville | Nov–Feb | Apr (31°C) |
| Koh Rong Samloem | Nov–Mar | May (30°C) |
| Battambang | Nov–Feb | Mar (36°C) |
| Kep | Nov–Feb | Mar (33°C) |
Quick answers
What is the best month to visit Phnom Penh?
Nov–Feb. Nov–Feb is dry and coolest. Mar–May is very hot; Jun–Oct is rainy with flooded streets and fewer visitors. Khmer New Year in April shuts the city.
When is the rainy season in Phnom Penh?
Rain peaks in June with about 190 mm. Months with 150 mm or more: Jun–Oct.
What is the hottest month in Phnom Penh?
March, with average highs of 37°C (99°F).
How cold does Phnom Penh get?
The coolest nights are in January, averaging 22°C (71°F).
More about Phnom Penh
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Sources
Climate averages are modelled from NASA POWER (MERRA-2) for 2001–2020 at about 50 km resolution, so coasts and valleys can differ a little. Compiled and reviewed by SoloSquare. How we compile and score this. Spotted something out of date? Tell us.