Phnom Penh, CambodiaQuick decision
When to visit Phnom Penh?
🌞 Best time overall
January
🌡️ Optimal temperature
73°F–90°F 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 °F | Max °F | Rainy days (%) | Precip. in/d | 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
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°F, 49% rainy days, 11.4h sunshine/day. Score: 6.6/10.
☀️ Summer (Jun–Aug) — Acceptable
Average 32°F, 81% rainy days, 9.4h sunshine/day. Score: 6.2/10.
🍂 Autumn (Sep–Nov) — Acceptable
Average 31°F, 76% rainy days, 9.5h sunshine/day. Score: 6.5/10.
❄️ Winter (Dec–Feb) — Good time
Average 32°F, 15% rainy days, 10.9h sunshine/day. Score: 8.0/10.
Accommodation
Find a place to stay in Phnom Penh
Check availability during the recommended period
Tip : off-peak months (September, October) are cheapest but weather is significantly worse.
Search on Hotels.comActivities & tours
Activities and tours in Phnom Penh
Guided tours, skip-the-line tickets and local experiences.
Browse activities on GetYourGuide
Flights
Find a flight to Phnom Penh
Compare flights from all airlines.
Search flights
Monthly weather
Detailed weather by month
FAQ
Frequently asked questions
January is ideal with 12% rainy days and 32°F.
September is the wettest month with 93% rainy days.
Yes, January is the best month with an average of 32°F.
In winter, the average score is 8.0/10. Acceptable conditions for cultural visits.
Also explore
Destinations with similar climate
VietnamWeather rankings
Compare destinations by weather
Best in EuropeGuides & comparisons