Phnom Penh weather in March
March in Phnom Penh: sweltering, dry — a good time to visit.
#5 of 12 months in Phnom Penh · #469 of 604 destinations to visit in March · comfort 66/100 (tier C)
Updated June 2026 · climate normals from ERA5 reanalysis
Phnom Penh climate normals — March
| Daytime high | 34°C / 94°F | 🔥 sweltering |
|---|---|---|
| Nighttime low | 25°C / 77°F | |
| Feels like (high) | 39°C / 102°F | |
| Rainfall | 24 mm / 0.9 in | ☀️ dry |
| Rainy days | 4 days | |
| Humidity | 68% | 💧 humid |
| Dew point | 22°C / 71°F | |
| Sunshine | 11.1 h/day | |
| Daylight | 12.1 h | |
| Wind | 13 km/h / 8 mph | |
| Air quality (US AQI) | 82 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Phnom Penh in March — FAQ
- Is March a good time to visit Phnom Penh?
- March in Phnom Penh: sweltering, dry — a good time to visit. It ranks #5 of 12 months for Phnom Penh on SeasonMap's comfort score (66/100).
- What is the weather like in Phnom Penh in March?
- In March, Phnom Penh averages a daily high of 34.2°C and a low of 25°C, with about 23.7 mm of rain over roughly 3.8 rainy days.
- What is the air quality in Phnom Penh in March?
- Phnom Penh has a mean US Air Quality Index of about 82 in March.