What is the weather like in Kep vs Phnom Penh in September?

In September, Kep averages 29°C high / 25°C low with about 289 mm of rain; Phnom Penh averages 33°C high / 25°C low with about 256 mm.

Kep vs Phnom Penh in September

Kep is the better pick in September — 57 vs 47 on SeasonMap's comfort score. Kep is sweltering, soaked, clean air, while Phnom Penh is sweltering, soaked, clean air.

Kep vs Phnom Penh — September climate, side by side

	🇰🇭 Kep	🇰🇭 Phnom Penh
Comfort score	57/100 (D)	47/100 (F)
Feels-like high	34°C	39°C
Avg high / low	29° / 25°	33° / 25°
Rainfall	289 mm	256 mm
Rainy days	27	27
Humidity	86%	84%
Air quality (AQI)	31	41

Monthly climate normals (ERA5 reanalysis). Comfort scores are SeasonMap estimates.

Month by month

Kep 🇰🇭 Cambodiasweltering, soaked, clean air · best January57
Phnom Penh 🇰🇭 Cambodiasweltering, soaked, clean air · best January47

Kep vs Phnom Penh in September — FAQ

Is September better in Kep or Phnom Penh?: Kep is the better pick in September — 57 vs 47 on SeasonMap's comfort score. Kep is sweltering, soaked, clean air, while Phnom Penh is sweltering, soaked, clean air.
What is the weather like in Kep vs Phnom Penh in September?: In September, Kep averages 29°C high / 25°C low with about 289 mm of rain; Phnom Penh averages 33°C high / 25°C low with about 256 mm.