Phnom Penh, CambodiaQuick decision
When to visit Phnom Penh?
🌞 Best time overall
January
🌡️ Optimal temperature
23°C–32°C in January
🌧 Least rain
12% rainy days in January
🌧 Wettest month
September (93%)
📅 Best score
8.1/10
By trip type
Best time by type of trip
Royal PalaceNovember–February — Royal Palace, Silver Pagoda and National Museum.
MemoryYear-round — Tuol Sleng Genocide Museum and Killing Fields.
Street Food & MarketsYear-round — Central Market, Russian Market and Khmer cuisine.
Mekong RiversideYear-round — Sisowath Quay, sunsets and terraces.
Monthly climate data
Phnom Penh weather month by month
| Month | Min °C | Max °C | Rainy days (%) | Precip. mm/d | Sun h/d | Score |
|---|---|---|---|---|---|---|
| ☀️ January | 23°C | 32°C | 12% | 0.6 | 11.0h | 8.1/10 |
| ☀️ February | 24°C | 33°C | 11% | 0.6 | 11.1h | 7.8/10 |
| ☀️ March | 25°C | 34°C | 19% | 1.4 | 11.6h | 7.4/10 |
| 🌤️ April | 26°C | 35°C | 47% | 3.4 | 12.0h | 7.0/10 |
| ⛅ May | 26°C | 33°C | 82% | 6.3 | 10.5h | 5.5/10 |
| ⛅ June | 26°C | 32°C | 79% | 5.9 | 10.0h | 6.6/10 |
| 🌦️ July | 25°C | 32°C | 80% | 6.3 | 8.7h | 6.0/10 |
| 🌦️ August | 25°C | 32°C | 84% | 7.1 | 9.5h | 6.0/10 |
| 🌦️ September | 25°C | 31°C | 93% | 10.4 | 8.5h | 5.4/10 |
| 🌦️ October | 24°C | 31°C | 82% | 10.2 | 9.2h | 6.6/10 |
| 🌤️ November | 24°C | 30°C | 53% | 5.2 | 10.9h | 7.4/10 |
| ☀️ December | 24°C | 31°C | 22% | 1.3 | 10.7h | 8.0/10 |
Ideal
Fair
Challenging climate
Source: Open-Meteo · 10 years
🌴 Tropical destination — heavy rain months benefit from an algorithmic adjustment: tropical showers are intense but brief and usually don't ruin a trip.
Seasonal breakdown
What to expect each season
🌸 Spring (Mar–May) — Acceptable
Average 34°C, 49% rainy days, 11.4h sunshine/day. Score: 6.6/10.
☀️ Summer (Jun–Aug) — Acceptable
Average 32°C, 81% rainy days, 9.4h sunshine/day. Score: 6.2/10.
🍂 Autumn (Sep–Nov) — Acceptable
Average 31°C, 76% rainy days, 9.5h sunshine/day. Score: 6.5/10.
❄️ Winter (Dec–Feb) — Good time
Average 32°C, 15% rainy days, 10.9h sunshine/day. Score: 8.0/10.
Accommodation
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Check availability during the recommended period
Tip : off-peak months (September, October) are cheapest but weather is significantly worse.
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Activities and tours in Phnom Penh
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Flights
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Monthly weather
Detailed weather by month
FAQ
Frequently asked questions
January is ideal with 12% rainy days and 32°C.
September is the wettest month with 93% rainy days.
Yes, January is the best month with an average of 32°C.
In winter, the average score is 8.0/10. Acceptable conditions for cultural visits.
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