Siem ReapPhoto: Bahnfrend · CC BY-SA 4.0Cambodia · Asia
Best time to visit Siem Reap
Siem Reap is hot all year. The cooler, dry period from November to February is ideal for the temples of Angkor; March to May turns very hot, and the rainy season from June to October brings heavy afternoon showers.
Climate decision
Best travel months for Siem Reap
Top recommendation
Next highest scores
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Latest 5-year values 2021–2025
Average of the five most recent complete years compared with the 1991–2025 climate average.
April · Wet days
9.4 days/month
1991–2025: 12.8 days/month
-3.4 days/month · lower
July · Mean daily maximum
32.1 °C
1991–2025: 30.8 °C
+1.3 °C · higher
June · Monthly precipitation
136 mm/month
1991–2025: 173.9 mm/month
-37.9 mm/month · lower
May: 153/155 days at or above 30 °C; highest single value 43.9 °C.
Five-year historical sample, not a weather forecast or long-term climate trend. Individual hot days can be far above the monthly mean.
Annual profile · Rainfall rhythm
Siem Reap: rainfall separates the travel months
The driest and wettest months are 24.3 rainy days apart. Average daily highs vary by 6.6 °C, so both signals matter when choosing a month.
What matters
A warmer month is not automatically the most reliable. Read the drier windows alongside sunshine and the activity you have in mind.
Fewest rainy days
December · 1.7
Most rainy days
September · 26
Most sunshine
April · 7.3 h
Highest average daily high
March · 36.8 °C
Month by month
Overall suitability per month. Tap a month for details.
All climate figures compared
The table is the complete accessible data view; the charts below highlight selected patterns.
| Month | Avg high °C | Avg low °C | Rainy days (est.) | Rain mm | Sun h/day (est.) | Humidity % | Wind m/s | Score |
|---|---|---|---|---|---|---|---|---|
| January | 34 | 21 | 3 | 10 | 6.4 | 57 | 1.5 | 65 |
| February | 36 | 23 | 4 | 19 | 6.8 | 53 | 1.5 | 60 |
| March | 37 | 25 | 8 | 46 | 6.9 | 56 | 1.5 | 53 |
| April | 36 | 26 | 13 | 74 | 7.3 | 63 | 1.4 | 43 |
| May | 34 | 26 | 22 | 143 | 7.1 | 74 | 1.4 | 32 |
| June | 32 | 25 | 23 | 174 | 6.8 | 82 | 1.7 | 36 |
| July | 31 | 24 | 26 | 194 | 6.5 | 85 | 1.8 | 38 |
| August | 31 | 24 | 25 | 212 | 6.4 | 86 | 1.8 | 39 |
| September | 30 | 24 | 26 | 240 | 6.0 | 87 | 1.4 | 40 |
| October | 31 | 24 | 19 | 140 | 6.1 | 84 | 1.3 | 43 |
| November | 31 | 22 | 7 | 35 | 6.1 | 79 | 1.6 | 66 |
| December | 32 | 20 | 2 | 6 | 6.0 | 67 | 1.7 | 69 |
Climate through the year
Compare temperature, rainy days, sunshine and, for coastal destinations, sea temperature month by month.
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Where to stay in Siem Reap
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Similar destinations
The number is the overall climate score, not a similarity score.
Frequently asked questions
When is the best time to visit Siem Reap?
The strongest climate months are January, February, November, December. Values are historical averages, not a forecast.
Which month has the highest average daily maximum temperature in Siem Reap?
The average daily maximum temperature in Siem Reap is highest in March at around 37 °C.