Phnom Penh weather in April
April in Phnom Penh: sweltering, a little rain — a good time to visit.
#6 of 12 months in Phnom Penh · #541 of 604 destinations to visit in April · comfort 62/100 (tier C)
Updated June 2026 · climate normals from ERA5 reanalysis
Phnom Penh climate normals — April
| Daytime high | 34°C / 94°F | 🔥 sweltering |
|---|---|---|
| Nighttime low | 26°C / 79°F | |
| Feels like (high) | 40°C / 104°F | |
| Rainfall | 70 mm / 2.8 in | 🌦 some rain |
| Rainy days | 13 days | |
| Humidity | 72% | 💧 humid |
| Dew point | 23°C / 74°F | |
| Sunshine | 11.1 h/day | |
| Daylight | 12.4 h | |
| Wind | 11 km/h / 7 mph | |
| Air quality (US AQI) | 80 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Phnom Penh in April — FAQ
- Is April a good time to visit Phnom Penh?
- April in Phnom Penh: sweltering, a little rain — a good time to visit. It ranks #6 of 12 months for Phnom Penh on SeasonMap's comfort score (62/100).
- What is the weather like in Phnom Penh in April?
- In April, Phnom Penh averages a daily high of 34.3°C and a low of 26°C, with about 70.3 mm of rain over roughly 13.2 rainy days.
- What is the air quality in Phnom Penh in April?
- Phnom Penh has a mean US Air Quality Index of about 80 in April.