Siem Reap Weather in September

September weather

September is hot, very humid and often cloudy. The high reaches 31°C, and the low stays around 24°C. Rain falls on 26 days, so expect sudden showers and wet paths rather than a washout every day. There's little sunshine, and sightseeing can feel sticky and tiring.

Angkor's temples still work well in the rain, especially when showers ease. But stone steps and roots at Ta Prohm can get slippery, so take your time. Avoid planning a long, exposed walk in the hottest part of the day. A tuk-tuk between temples gives you a welcome break.

Events and crowds

Pchum Ben, Cambodia's festival of remembrance for deceased relatives, can fall in September, though its dates follow the lunar calendar. You may notice families visiting pagodas and local businesses closing or changing hours around the holiday.

September is part of the rainy low season, unlike the popular, drier months around December. Angkor Wat and the town centre are usually quieter, and hotel rates are often lower. If you hate crowds, this can be a good time to explore, as long as you're happy to work around showers.

Make the most of a wet day

Keep your temple visit flexible. If rain starts during the Angkor small circuit, take shelter in a temple gallery, then continue when the paths are safer. The covered corridors at Angkor Wat offer shade and a place to pause; they're more useful than waiting out a shower in an open courtyard.

For a change of pace, try a bowl of kuy teav, a Cambodian noodle soup, in Siem Reap town. It's a cosy meal after a damp day, and you won't need clear skies to enjoy it.