worldweather31°Cwarmer than usual
usually 29°C–31°C
warmer than 88% of similar days
night: exceptionally warm
rain: exceptionally dry
wind: exceptionally strong
Weather in Cambodia - today, tomorrow and 14-day forecast
Right now temperatures across Cambodia range from 29° to 33°. Below: today's conditions city by city, a live weather map, the 14-day outlook and month-by-month climate to help you pick the best time to travel.
Country values are the median of forecasts from 7 cities; the range shows local differences. Methodology.
Weather in Cambodia's cities today
🌧️Phnom Penh
33°💧 0.8 mm
🌧️Prey Vêng
33°💧 0.8 mm
🌧️Battambang
31°💧 0.8 mm
🌧️Siem Reap
31°💧 1.3 mm
☁️Sisŏphŏn
30°💧 0.3 mm
🌧️Koh Kong
29°💧 10 mm
🌧️Sihanoukville
29°💧 7.5 mm
Weather map - today's temperatures
Next days in Cambodia
today🌧️
31°💧 0.8 mm
Sun🌧️
33°💧 4 mm
Mon🌧️
31°💧 4.5 mm
Tue🌧️
32°💧 2.6 mm
Wed🌧️
31°💧 7.1 mm
Thu🌧️
28°💧 18.3 mm
Fri🌧️
26°💧 22.3 mm
Sat🌧️
25°💧 42.5 mm
Forecast vs 1991-2020 climate normal
NASA POWERHow does the current forecast compare with normal?
We compare the coming days with weather usually observed at this time of year.
Friday 11 Sept in Cambodia, the forecast high is 26°C. Typical daytime temperatures at this time of year range from 29°C to 30°C, so it will be exceptionally cool. It is cooler than 99% of similar days.
33°Cexceptionally warm
usually 29°C–31°C
warmer than 98% of similar days
night: exceptionally warm
rain: typical rainfall
wind: exceptionally strong
31°Cexceptionally warm
usually 29°C–31°C
warmer than 91% of similar days
night: exceptionally warm
rain: typical rainfall
wind: exceptionally strong
32°Cexceptionally warm
usually 29°C–31°C
warmer than 96% of similar days
night: exceptionally warm
rain: less rain than usual
wind: exceptionally strong
31°Cexceptionally warm
usually 29°C–31°C
warmer than 92% of similar days
night: exceptionally warm
rain: typical rainfall
wind: exceptionally strong
28°Cexceptionally cool
usually 29°C–31°C
cooler than 95% of similar days
night: exceptionally warm
rain: more rain than usual
wind: exceptionally strong
26°Cexceptionally cool
usually 29°C–30°C
cooler than 99% of similar days
night: warmer than usual
rain: exceptionally wet
wind: stronger than usual
How warm was this week in previous years?
Each bar shows the average daily high during the same 7-day period in each year.
cooler yearstypical rangewarmer years2026 forecastcurrent forecast
From 1981 to 2025, the 5-11 Sept period averaged 30°C by day. The coolest year was 1986 (28°C) and the warmest was 2016 (32°C). The current forecast averages 31°C - higher than in 84% of historical years.
Historical reference: NASA POWER daily gridded data (MERRA-2), the 1991-2020 normal and a +/- 7-day calendar window. The typical range is the 20th-80th percentile. This is not a city weather-station reading and does not change the current forecast. NASA POWER Daily API.
14-day forecast - Cambodia
Cambodia 30 & 45-day weather - long-range outlook
Next 16 days · forecast
28°
around 26° at night · days with rain: 15
Weeks 3-4 · avg for September
33°
around 25° at night · rain chance 75%
Weeks 5-7 · avg for October
32°
around 25° at night · rain chance 57%
The 30 & 45-day outlook for Cambodia: the next 16 days are a numerical forecast updated daily - on average 28° by day and 26° at night. Further out we rely on multi-year climate averages: around 33° in September, and about 32° in October. Forecasts beyond two weeks are indicative only.
Today vs the next days - Cambodia cities
| City | Today | +3 days | +7 days | Rain today |
|---|---|---|---|---|
| 🌧️ Phnom Penh | 33℃ | 32℃ | 25℃ | 0.8 mm |
| 🌧️ Prey Vêng | 33℃ | 32℃ | 26℃ | 0.8 mm |
| 🌧️ Battambang | 31℃ | 33℃ | 24℃ | 0.8 mm |
| 🌧️ Siem Reap | 31℃ | 32℃ | 25℃ | 1.3 mm |
| ☁️ Sisŏphŏn | 30℃ | 33℃ | 24℃ | 0.3 mm |
| 🌧️ Koh Kong | 29℃ | 29℃ | 26℃ | 10 mm |
| 🌧️ Sihanoukville | 29℃ | 28℃ | 27℃ | 7.5 mm |
Day-by-day forecast for Cambodia
Saturday5 September 2026
🌧️31°light rain
Sunday6 September 2026
🌧️33°light rain
Monday7 September 2026
🌧️31°moderate rain
Tuesday8 September 2026
🌧️32°light rain
Wednesday9 September 2026
🌧️31°light rain
Thursday10 September 2026
🌧️28°light rain
Friday11 September 2026
🌧️26°heavy rain
Saturday12 September 2026
🌧️25°moderate rain
Sunday13 September 2026
🌧️26°moderate rain
Monday14 September 2026
🌧️26°moderate rain
Tuesday15 September 2026
🌧️27°heavy rain
Wednesday16 September 2026
🌧️30°moderate rain
Thursday17 September 2026
🌧️26°moderate rain
Friday18 September 2026
🌧️27°heavy rain
Saturday19 September 2026
🌧️28°moderate rain
Sunday20 September 2026
🌧️27°heavy rain
Sea temperature - Cambodia
| Beach | Water today | Water week avg | Waves | How's the water? |
|---|---|---|---|---|
| Koh Kong | 30℃ | 30℃ | 0.8 m | very warm |
| Sihanoukville | 30℃ | 29℃ | 0.8 m | very warm |
Sea-surface temperature from marine models, updated daily. See also: where the sea is warmest right now.
Air quality and smog in Cambodia
| City | PM2.5 (µg/m³) | PM10 (µg/m³) | Air quality |
|---|---|---|---|
| Siĕm Réab | 7.4 | 10.9 | very good |
| Kampong Saom | 6.8 | 11.2 | very good |
Based on PM2.5 thresholds. Station readings, updated daily (last reading: 2026-09-05, 08:00).
Cambodia weather through the year
Cambodia weather month by month - when is the best time to go?
Weather in other countries in Asia
FAQ - Cambodia weather
What is the weather like in Cambodia today?
Today it is about 31° during the day and 28° at night, light rain.
How far ahead can I check the forecast for Cambodia?
This page shows a detailed 14-day forecast plus the long-term monthly climate, so you can plan both a short trip and a holiday months ahead.