Today's Weather Forecast - Siem Reap

Today's weather in Siem Reap. high 31°C (88°F), low 24°C (75°F). Partly Cloudy.

Today’s Hourly Weather Outlook

Morning6 AM – Noon27°
Wind speed
10 km/h
Rain probability
94%
AfternoonNoon – 6 PM31°
Wind speed
10 km/h
Rain probability
71%
Evening6 PM – Midn27°
Wind speed
5 km/h
Rain probability
83%
NightMidn – 6 AM24°
Wind speed
10 km/h
Rain probability
97%

24-Hour Rain & Temperature Forecast

Sunrise & Sunset

Sunrise
Dawn 5:23 AM
Total Daylight
Day completeSolar noon 12:01 PM
Sunset
Dusk 6:39 PM
RemainingDaylight ended
Solar elevation-54°
vs yesterday-2 min

5-Day Weather Forecast

Full 15-Day Forecast

Weather Insight

Siem Reap is forecast to reach a high of 31°C today, with an overnight low around 24°C. That's 1° above the long-term average high of 30°C for this time of year. It continues a recent pattern — 13 of the last 19 days with published data have run warmer than normal. Expect a high chance of rain (97% probability) and a gentle breeze averaging 10 km/h. Air quality is currently good (AQI 36), with no notable outdoor health concerns.

Today vs Normal

31°C+1° above normal

The long-term average high for today is 30°C.

13 of the last 19 days with published data ran above normal.

It continues that pattern - today's forecast is also running above normal.

2026-08-19: 29°C29°2026-08-20: 29°C29°2026-08-21: 30°C30°2026-08-22: 30°C30°2026-08-23: 32°C32°2026-08-24: 31°C31°2026-08-25: 31°C31°2026-08-26: 31°C31°2026-08-27: 32°C32°2026-08-28: 30°C30°2026-08-29: 31°C31°2026-08-30: 29°C29°

Red = above normal, blue = at or below · last 12 days

Air Quality

Air Quality
Good

Air quality is considered satisfactory, and air pollution poses little or no risk. It’s a good day to be active outside.