Phnom Penh · SummerMonth summary
Phnom Penh weather in August
⚠️ Fair
🌡️ Temperature min / max
77°F – 90°F
🌧 Rainy days
84% of days
☀️ Sunshine
9.5h per day on average
🌊 🌊 Season
Summer
⭐ ⭐ Weather score
6.0/10
📅 📅 Best month
January (8.1/10)
Quick decision
Should you visit Phnom Penh in August?
⚠️ Fair
✅ Yes if: you're willing to accept showers in exchange for lower prices and fewer tourists.
❌ No if: you're planning 100% outdoor activities — rain is frequent.
Our take: Phnom Penh in August is possible but January offers a score of 8.1/10 vs 6.0.
By trip type
Phnom Penh in August by trip type
- 🏙️ 🏙️ City break / culture : ⚠️ Possible
- 🚶 🚶 Outdoor activities : ⚠️ Possible
- 🏖️ Beach / swimming : ❌ Not recommended
- 💰 💰 Budget : ✅ Low season
Local context
What to expect in August
In the height of summer, Phnom Penh sees high temperatures (32°F). Heat is a factor for outdoor activities. With 84% of rainy days, always have indoor alternatives planned. Not the best window, but acceptable if dates are constrained. January (8.1/10) is significantly better if possible.
Browse by month
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 August, Phnom Penh averages 90°F, 84% rainy days and 9.5h of sunshine per day. Overall weather score: 6.0/10.
See methodology →
Comparison
August vs January (best month)
The best month is January (score 8.1/10). Difference:
- 🌡️ Max temperature : +0°F
- 🌧 Rainy days : -72%
- ☀️ Sunshine : +1.5h/day
FAQ
FAQ — Phnom Penh in August
Is August a good time to visit Phnom Penh?
August is an acceptable time for Phnom Penh (score 6.0/10). Conditions are decent but not optimal — consider January (8.1/10) if possible.
Does it rain a lot in Phnom Penh in August?
Yes, 84% of days see rain in August. Plan some indoor activities as backup.
Accommodation
Find a place to stay in Phnom Penh
Find places to stay in Phnom Penh in August
Search on Hotels.com
Activities & 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
←
Explore also
Similar destinations in August
Ho Chi Minh City🌍 Top destinations
Other top destinations in August
Marsa Alam
Puerto Vallarta
Banjul
Santiago
TrinidadWeather rankings
Compare destinations by weather
Best in EuropeGuides & comparisons