- Clothing
- Waterproof jacket and umbrella strongly recommended.
Tomorrow's Weather Forecast - Siem Reap
Tomorrow's weather in Siem Reap. high 31°C (88°F), low 23°C (73°F). Thunderstorm.
Tomorrow’s Outlook
Tomorrow brings a similar temperature to today. Expect heavy rain in the morning and afternoon and evening and night, with rain chances climbing as high as 93%. That risk lines up with humidity averaging 90% through the day the more moisture in the air, the more readily clouds build into showers. Humidity stays high near 90%, so it will feel muggier and stickier than the temperature alone suggests. A light breeze near 13 km/h is expected. Sunrise is at 5:53 AM and sunset at 6:08 PM, for about 12h 15m of daylight.
- Tomorrow
- 31°/ 23°
- Today31° / 24°
Tomorrow’s Hourly Weather Outlook
Morning6 AM – Noon26°
- Rain probability
- 77%
- Wind speed
- 10 km/h
AfternoonNoon – 6 PM29°
- Rain probability
- 93%
- Wind speed
- 13 km/h
Evening6 PM – Midn25°
- Rain probability
- 93%
- Wind speed
- 7 km/h
NightMidn – 6 AM24°
- Rain probability
- 88%
- Wind speed
- 10 km/h
24-Hour Rain & Temperature Forecast
Tomorrow12 Sep
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Planning Advice for Tomorrow
- Outdoor
- Not ideal for outdoor plans or car washes — heavy rain expected.
- Travel
- Expect traffic slowdowns from wet roads. Allow extra time.
Sunrise & Sunset
Sunrise
Dawn 5:23 AMTotal Daylight
Full day forecastSolar noon 12:00 PM
Sunset
Dusk 6:38 PMvs today0 min daylight
Sunrise shiftSame time
Sunset shift1 min earlier
5-Day Weather Forecast
Full 15-Day ForecastWeather Insight
Siem Reap is forecast to reach a high of 31°C tomorrow, with an overnight low around 23°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 (93% probability) and a gentle breeze averaging 13 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.
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.