Cambodia Weather in September

Cambodia weather in September is usually warm and wet. The temperature in September does not change much compared with the previous months. The average maximum temperature is 32℃ (89.6℉) and the average lowest point is24℃ (75.2℉). The overall rainfall reaches up to 263mm (10.4in), which is one of the months with the highest rainfall.

The hottest cities in Cambodia in September:
Pursat: 31℃(87.8℉); Kampong Speu: 31℃(87.8℉)

The coolest cities in Cambodia in September:
Kratie: 23℃(73.4℉); Pailĭn: 23℃(73.4℉); Sisophon: 23℃(73.4℉)

Averages for Cambodia Weather in September

High Temperature

32°C (89.6°F)

Low Temperature

24°C (75.2°F)

Rainfall

263 mm (10.4 in)

Sunrise

05:49 ~ 05:50

Sunset

17:52 ~ 18:11

Jan.Feb.Mar.Apr.May.Jun.Jul.Aug.Sep.Oct.Nov.Dec.

The times for sunrise and sunset are based on Phnom Penh.

September Temperatures in Cambodia

What to Wear

It is recommended that tourists could wear light clothes such as cotton T-shirt, shorts, skirt and dress if you plan to travel to Cambodia in September, 2025. However, it is pretty cool at night because of the relatively large temperature difference. Therefore, thin sweater, jacket and jeans is necessary to keep warm in raining days and at night. Since it rains for a long time in September, do remember bring an umbrella or a raincoat with you when traveling outside. Last but not least, it is best to wear climbing shoes or sneakers, and women should better not wear high heels.

September Travel Guide – Where to Go & Tips

Tourism Rate:

September is one of the best months for travelers to go to Battambang, it is the second largest city in Cambodia. There are many small temples scattered all over the place, which mainly at Wat Ek Phnom Temple, 8 kilometers north of the city center on both sides of the river. Wat Banan Temple is located only 25 kilometers south of Battambang and is a pocket-sized Angkor Wat. Locals claim Angkor's most famous temple was inspired by it. Battambang Museum (US $ 1 for admission; Monday to Friday 8 ~ 11am and 2 ~ 5pm) have been repaired and are opened to tourists again. There are very attractive but few carved lintel stones, and an interesting lintel stone of Mahayana Buddhism in the post-Balon era.

Phnom Penh has less rainfall than other western cities in September, it is also a best place to visit. It is an ancient cultural city with many historic sites and scenic spots such as Royal Palace, Tuol Sleng Genocide Museum, National Museum of Cambodia, Killing Fields of Choeung Ek,etc.

September Weather of Major Cambodia Cities

September	Temperature		Sunrise / Sunset	Humidity (%)
	Temperature
	High	Low
Battambang	34°C/ 93.2°F	23°C / 73.4°F	07:25/ 17:32	44
Kampong Chhnang	33°C / 91.4°F	23°C / 73.4°F	07:20/ 18:07	84
Kampong Cham	33°C / 91.4°F	22°C / 71.6°F	07:56/ 18:38	79
Kampong Speu	30°C / 86°F	15°C / 59°F	07:45/ 18:30	83
Kampong Thom	29°C / 84.2°F	14°C / 57.2°F	07:08/ 18:13	72
Kampot	33°C / 91.4°F	23°C / 73.4°F	07:23/ 18:22	73
Kep	31°C / 87.8°F	23°C / 73.4°F	07:41/ 18:34	79
Koh Kong	30°C / 86°F	22°C / 71.6°F	06:51/ 17:35	75
Kratie	30°C / 86°F	17°C / 62.6°F	06:58/ 16:36	72
Pailĭn	29°C / 84.2°F	24°C / 75.2°F	07:44/ 17:48	57
Phnom Penh	30°C / 86°F	15°C / 59°F	07:03/ 18:11	74
Pursat	30°C / 86°F	22°C / 71.6°F	07:20/ 18:07	79
Siem Reap	34°C/ 93.2°F	25°C / 77°F	07:23/ 18:22	85