Phnom Penh Weather in September
Cambodia · September climate averages and travel tips
Avg high31°C (87°F)
Avg low24°C (76°F)
Rainfall214 mm (8.4 in)
RatingPoor 1.2/10
In September, Phnom Penh has average highs of 31°C (87°F) and lows of 24°C (76°F). The month is wet, with about 214 mm (8.4 in) of rain spread over 22 days, making it the wettest month of the year. Humidity averages 86%, so it feels sticky and hotter than the thermometer suggests. You get roughly 12.1 hours of daylight and frequently cloudy skies.
Is September a good time to visit Phnom Penh?
September is not the best time to visit Phnom Penh (1.2/10) mainly because of the rain. The weather is much better in December.
September weather at a glance
| Average high | 31°C (87°F) |
|---|---|
| Average low | 24°C (76°F) |
| Daily mean | 27°C (81°F) |
| Rainfall | 214 mm (8.4 in) |
| Rainy days (1 mm+) | 22 |
| Humidity | 86% |
| Cloud cover | 92% |
| Daylight | 12.1 hours |
| Est. sunshine | 1.1 hours/day |
| Wind | 7.4 km/h |
| vs August | 1°C cooler than August, with 51 mm more rain. |
What to pack for Phnom Penh in September
- light, breathable clothing
- sunscreen and a hat
- an umbrella or rain jacket
Phnom Penh weather in other months
Jan34°C / 22°C16 mmFairFeb37°C / 24°C12 mmFairMar38°C / 26°C32 mmPoorApr37°C / 26°C67 mmPoorMay34°C / 26°C134 mmPoorJun32°C / 25°C192 mmPoorJul31°C / 25°C183 mmPoorAug31°C / 24°C163 mmPoorSep31°C / 24°C214 mmPoorOct30°C / 24°C182 mmPoorNov31°C / 24°C104 mmPoorDec32°C / 22°C28 mmGood
← AugustBest time to visit Phnom PenhOctober →
Better weather in September nearby
- Istanbul26°C · 51 mm · Excellent
- Tianjin28°C · 59 mm · Excellent
- Shenyang25°C · 58 mm · Excellent
- Wuzhong26°C · 39 mm · Excellent
- Zibo28°C · 58 mm · Excellent
- UEruemqi25°C · 21 mm · Excellent
Nearby in September
- Can Tho30°C · 267 mm
- Ho Chi Minh City30°C · 201 mm
- Bien Hoa30°C · 201 mm
- Siem Reap31°C · 246 mm
- Pattaya29°C · 255 mm
- Nha Trang29°C · 233 mm
Where else is good in September? See where to go in September.