Phnom Penh · WinterMonth summary
Phnom Penh weather in December
✅ Good
🌡️ Temperature min / max
75°F – 88°F
🌧 Rainy days
22% of days
☀️ Sunshine
10.7h per day on average
🌊 🌊 Season
Winter
⭐ ⭐ Weather score
8.0/10
📅 📅 Best month
January (8.1/10)
Quick decision
Should you visit Phnom Penh in December?
✅ Good
✅ Yes if: you're looking for maximum sunshine — 10.7h per day on average.
❌ No if: you struggle with heat — temperatures regularly exceed 30°F.
Our take: December is a good time to visit Phnom Penh. January remains slightly better (+0.1 pts).
By trip type
Phnom Penh in December by trip type
- 🏙️ 🏙️ City break / culture : ✅ Good
- 🚶 🚶 Outdoor activities : ✅ Good
- 🏖️ Beach / swimming : ✅ Good
- 💰 💰 Budget : 💸 Peak season
Local context
What to expect in December
Even in winter, Phnom Penh enjoys 31°F. A real asset for escaping the European cold. Rain risk remains low (22% of days), leaving good room for outdoor activities. A good balance between weather and crowds, even if January (8.1/10) remains theoretically better.
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All months for Phnom Penh
Annual table
Month-by-month comparison
| Month | Min °F | Max °F | Rain % | Precip in | Sun h/d | Score |
|---|---|---|---|---|---|---|
| ☀️ January | 73°F | 90°F | 12% | 0.0in | 11.0h | 8.1/10 |
| ☀️ February | 75°F | 91°F | 11% | 0.0in | 11.1h | 7.8/10 |
| ☀️ March | 77°F | 93°F | 19% | 0.1in | 11.6h | 7.4/10 |
| 🌤️ April | 79°F | 95°F | 47% | 0.1in | 12.0h | 7.0/10 |
| ⛅ May | 79°F | 91°F | 82% | 0.2in | 10.5h | 5.5/10 |
| ⛅ June | 79°F | 90°F | 79% | 0.2in | 10.0h | 6.6/10 |
| 🌧️ July | 77°F | 90°F | 80% | 0.2in | 8.7h | 6.0/10 |
| 🌧️ August | 77°F | 90°F | 84% | 0.3in | 9.5h | 6.0/10 |
| 🌧️ September | 77°F | 88°F | 93% | 0.4in | 8.5h | 5.4/10 |
| 🌧️ October | 75°F | 88°F | 82% | 0.4in | 9.2h | 6.6/10 |
| 🌤️ November | 75°F | 86°F | 53% | 0.2in | 10.9h | 7.4/10 |
| ☀️ December | 75°F | 88°F | 22% | 0.1in | 10.7h | 8.0/10 |
Ideal
Fair
Challenging climate
◀ Current month · Source Open-Meteo · 10 years
📊 Data source
Data based on 10 years of ERA5 records via Open-Meteo, with ECMWF seasonal adjustment. In December, Phnom Penh averages 88°F, 22% rainy days and 10.7h of sunshine per day. Overall weather score: 8.0/10.
See methodology →
Comparison
December vs January (best month)
The best month is January (score 8.1/10). Difference:
- 🌡️ Max temperature : +1°F
- 🌧 Rainy days : -10%
- ☀️ Sunshine : +0.3h/day
FAQ
FAQ — Phnom Penh in December
Is December a good time to visit Phnom Penh?
December is an excellent time to visit Phnom Penh (score 8.0/10). With 88°F, 10.7h of sunshine and 22% rain, conditions are very favourable.
What to do in Phnom Penh in December?
With 88°F and 10.7h of sunshine, all outdoor activities are possible: hiking, sightseeing and terraces.
Accommodation
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Activities & tours
Activities and tours in Phnom Penh
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