Weather radar Siem Reap
Real-time precipitation radar · Siem Reap · Cambodia
Siem Reap climate table – average temperature, precipitation & sunshine hours
The climate table for Siem Reap shows long-term monthly averages (2000–2023): average high and average low temperature in °C, monthly precipitation (mm), rainy days and sunshine hours per month. Data source: ERA5 reanalysis (ECMWF) via the WDTEC Climate Archive.
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 30.2° | 32.3° | 33.9° | 34.8° | 33.8° | 33.7° | 32.2° | 32.7° | 31° | 31.1° | 30.7° | 30° |
| Avg low (°C) | 21.8° | 24.1° | 26.1° | 27.3° | 27.2° | 27.2° | 26.7° | 26.6° | 26.1° | 25.4° | 24.4° | 22.7° |
| Precipitation (mm) | 18 | 25 | 36 | 78 | 151 | 112 | 202 | 161 | 287 | 252 | 114 | 23 |
| Rainy days | 1 | 4 | 7 | 10 | 20 | 22 | 26 | 24 | 28 | 24 | 14 | 4 |
| Sunshine hours | 313 | 299 | 340 | 330 | 321 | 293 | 260 | 294 | 215 | 260 | 281 | 302 |
| Humidity | 70% | 69% | 69% | 70% | 76% | 76% | 80% | 80% | 85% | 83% | 79% | 74% |
Best time to visit Siem Reap
The best time to visit Siem Reap is typically January. In this month the average high is 30.2°C, precipitation is 18 mm and sunshine duration is 313 hours. The annual average high is 32.2°C, total annual precipitation is 1459 mm (184 rainy days/year) and annual sunshine is 3508 hours.
Frequently asked questions about the weather in Siem Reap
How up to date is the weather radar for Siem Reap?
The weather radar for Siem Reap is updated every 5 minutes with new radar data from the OPERA composite radar. A 2-hour forecast animation is also available. Rainfall probability, wind gusts and UV index are available up to 14 days in advance.
What weather data is available for Siem Reap?
Besides the rain radar, RadarWeather provides for Siem Reap: rainfall probability, thunderstorm warning (CAPE index), wind gusts, UV index, air pressure, humidity, dew point, sunshine hours, snow line and a 14-day forecast based on ICON-D2, ECMWF IFS and GFS.
When are thunderstorms expected in Siem Reap?
The thunderstorm potential for Siem Reap is calculated from the CAPE index and lightning potential. Active storm cells and severe weather warnings are visible on the radar map in real time. Thunderstorm warnings are issued automatically as soon as storm cells are detected near Siem Reap.
What is the climate like in Siem Reap?
Siem Reap has an annual average high of 32.2°C. The warmest month is April (avg high 34.8°C), the coldest January (avg low 21.8°C). The wettest month is September with 287 mm, the driest January with 18 mm. Total annual precipitation is 1459 mm (184 rainy days). Annual sunshine is 3508 hours.
Weather radar near Siem Reap
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