Weather in Phnom Penh in September
In an average September, Phnom Penh sees a daily high around 32°C and a low around 25°C, based on 1980–2026 of local climate records.
| Average high | 32°C |
|---|---|
| Typical high range | 30°C to 34°C |
| Average low | 25°C |
| Typical low range | 24°C to 26°C |
| Average daily precipitation | 8 mm |
September records
The most extreme September on record for each metric, across 1980–2026. For rainfall, the wettest and driest are by total September accumulation.
High
Highest
37°C
2015-09-07
Lowest
26°C
2011-09-23
Low
Highest
28°C
2024-09-06
Lowest
23°C
1996-09-20
Feels-like
Highest
64°C
1997-09-09
Lowest
26°C
2011-09-23
Humidity
Highest
25.9 g/m³
2024-09-11
Lowest
19.8 g/m³
1985-09-04
Wind
Highest
26 km/h
2013-09-19
Lowest
4 km/h
2021-09-17
Gust
Highest
59 km/h
1996-09-13
Lowest
14 km/h
1983-09-02
Precip
Wettest
340 mm
2012
Driest
162 mm
1992
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