Siem Reap in December
8.4out of 10
Yes, a good time to go
Hot: daytime highs around 30°C. Very dry: about 3 rainy days.
30°CAvg high
22°CAvg low
3Rainy days (15 mm)
11:13 hDaylight
06:24Sunrise · 17:37 Sunset
Why this score
- Hot: daytime highs around 30°C
- Very dry: about 3 rainy days
What to wear and pack
- Light, breathable clothing
- Shorts or a light skirt
- Sunscreen, sunglasses and a hat
How reliable is the forecast?
Rainfall in December is fairly consistent from year to year (2.1 days). Averages cover 30 years (1991–2020). Individual days can differ a lot.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 31°C | 22°C | 9 mm | 2 | – | – | 8.2 |
| February | 33°C | 24°C | 13 mm | 3 | – | – | 7.7 |
| March | 34°C | 26°C | 53 mm | 8 | – | – | 6.5 |
| April | 35°C | 27°C | 94 mm | 14 | – | – | 5.6 |
| May | 34°C | 27°C | 147 mm | 22 | – | – | 4.8 |
| June | 33°C | 27°C | 132 mm | 21 | – | – | 5.0 |
| July | 32°C | 26°C | 135 mm | 22 | – | – | 5.1 |
| August | 32°C | 26°C | 161 mm | 24 | – | – | 5.2 |
| September | 31°C | 26°C | 247 mm | 26 | – | – | 5.4 |
| October | 31°C | 25°C | 221 mm | 23 | – | – | 5.5 |
| November | 31°C | 24°C | 61 mm | 9 | – | – | 7.4 |
| December | 30°C | 22°C | 15 mm | 3 | – | – | 8.4 |
Frequently asked questions
How hot is Siem Reap in December?
Daytime highs average 30°C and nights about 22°C.
When is the best time to visit Siem Reap?
The best months are December, January.