Cambodia Phnom Penh Weather in July — Climate Guide
July in Phnom Penh is moderate
July is moderate for Phnom Penh.
July is monsoon peak — rainfall 220mm + 18 rainy days. Days 32°C / 90°F + nights 25°C / 77°F. Despite the rain, European summer holiday + Korean summer break drive a regional inbound surge. Hotel pricing climbs from June lows — boutique $40-90/night, Raffles + Rosewood + Sofitel $250-500. Occasional heavy rain causes flooding in low-lying downtown streets (Sisowath Quay + parts of BKK1). Tuk-tuks may not run during heavy storms — use PassApp cars. Mekong cruise + outdoor activities have weather-dependent cancellations. Plan Phnom Penh city-based itinerary + accept some indoor-substitution flexibility. Hotel pool + spa + cooking class become the daytime norm.
Travel score
Monsoon peak + European/Korean summer holiday paradox
July Weather at a Glance
July averages 90°F / 32°C highs and 77°F / 25°C lows with 18 rainy days and 220mm of rain. Humidity 82%. UV 10. Sunshine 6 hours. Year's monsoon peak with frequent afternoon flooding in low-lying downtown.
July Travel Advice
Travel insurance with cancellation coverage essential. Korean summer break drives 2-3 week hotel + flight surge. Mekong cruise + outdoor activities weather-dependent — confirm with operator the morning of. PassApp cars over tuk-tuks during storms.
Flying In from Overseas
European summer holiday + Korean summer break + Japanese summer vacation stack. Flights via Bangkok or Singapore $500-900 from East Asia.
July Pricing Trends
30% off peak: boutique $40-90/night, Raffles $250-500, Rosewood $230-450, Sofitel $180-330. Flights $500-900 from East Asia.
Phnom Penh July Weather Stats
Avg High
32°C
Avg Low
25°C
Rainy Days
18
220mm total
Sunshine
6h
Daily avg
Humidity
82%
very humid
UV Index
10
Very high
Wind
9 km/h
Gusts 26
Sea Temp
29°C
Mekong River muddy + rough
Crowds
Moderate
At attractions
July Sunrise & Sunset
Air Quality
PM2.5
28 μg/m³
PM10
48 μg/m³
Status
moderate
Feels-Like Temperature & Wind
Feels like
Daytime
37°C
Nighttime
27°C
Humidity and wind affect how the actual temperature feels.
Wind
9 km/h
Max gust 26 km/h
Activities Recommended for July
July Travel Pros & Cons
Pros
- European + Korean summer holiday energy
- Pricing still 30% off peak
- Lush green landscapes
Cons
- Year's monsoon peak — 18 rainy days, 220mm
- Downtown flooding risk
- Tuk-tuk service intermittent during storms
July Events & Festivals
- European + Korean summer holiday peak
- Pchum Ben preparations begin (festival in September)
- Year's monsoon peak
- Heavy occasional flooding in low-lying downtown
Phnom Penh in July — Full Picture
July is monsoon peak — rainfall 220mm + 18 rainy days. Days 32°C / 90°F + nights 25°C / 77°F. Despite the rain, European summer holiday + Korean summer break drive a regional inbound surge. Hotel pricing climbs from June lows — boutique $40-90/night, Raffles + Rosewood + Sofitel $250-500. Occasional heavy rain causes flooding in low-lying downtown streets (Sisowath Quay + parts of BKK1). Tuk-tuks may not run during heavy storms — use PassApp cars. Mekong cruise + outdoor activities have weather-dependent cancellations. Plan Phnom Penh city-based itinerary + accept some indoor-substitution flexibility. Hotel pool + spa + cooking class become the daytime norm.
What to Wear & What to Pack
Monsoon peak. Daily afternoon storms. Quick-dry + rain shell + waterproof phone case essential. Days 32°C / 90°F + nights 25°C / 77°F.
Packing Checklist
Seasonal Weather Overview
Spring (Mar·Apr·May)
35°C
25°C
7.3/mo
Summer (Jun·Jul·Aug)
Current32.3°C
25°C
17.7/mo
Autumn (Sep·Oct·Nov)
31°C
23.7°C
15/mo
Winter (Dec·Jan·Feb)
31.3°C
22°C
1.7/mo
Phnom Penh Monthly Weather Comparison
| Month | High | Low | Rain | Sun | Humid | UV | Crowd | Price |
|---|---|---|---|---|---|---|---|---|
| January (Best) | 31° | 22° | 1d·10mm | 9h | 65% | 9 | Very busy | Peak |
| February (Best) | 33° | 23° | 1d·10mm | 9.5h | 60% | 10 | Very busy | Peak |
| 35° | 24° | 3d·35mm | 9h | 65% | 11 | Busy | Shoulder | |
| 36° | 26° | 6d·75mm | 8.5h | 70% | 12 | Busy | Peak | |
| 34° | 25° | 13d·145mm | 7.5h | 75% | 11 | Moderate | Shoulder | |
| 33° | 25° | 16d·200mm | 6.5h | 80% | 10 | Quiet | Low season | |
| 32° | 25° | 18d·220mm | 6h | 82% | 10 | Moderate | Shoulder | |
| 32° | 25° | 19d·220mm | 6h | 82% | 10 | Moderate | Shoulder | |
| 32° | 25° | 19d·250mm | 6h | 82% | 9 | Quiet | Low season | |
| 31° | 24° | 17d·240mm | 7h | 80% | 9 | Moderate | Low season | |
| November (Best) | 30° | 22° | 9d·100mm | 8h | 70% | 9 | Very busy | Peak |
| December (Best) | 30° | 21° | 3d·25mm | 9h | 65% | 9 | Busy | Peak |
View Other Months
Phnom Penh July Hotel Picks
Frequently Asked Questions
Is July a good time to visit Phnom Penh?
Phnom Penh in July is moderate. Tourist crowds are moderate and flight/hotel prices are shoulder.
What's the average temperature in Phnom Penh in July?
Phnom Penh July averages a high of 32°C and a low of 25°C.
Does it rain much in Phnom Penh in July?
Phnom Penh July averages 220mm of rainfall over about 18 rainy days.
What should I wear in Phnom Penh in July?
Monsoon peak. Daily afternoon storms. Quick-dry + rain shell + waterproof phone case essential. Days 32°C / 90°F + nights 25°C / 77°F.
What time are sunrise and sunset in Phnom Penh in July?
Phnom Penh July sunrise is 05:50 and sunset is 18:30, with 12h 40min of daylight.
What's the air quality like in Phnom Penh in July?
Phnom Penh July air quality (AQI) averages 55, rated Moderate. PM2.5 averages 28μg/m³.
What activities are recommended in Phnom Penh in July?
In July, Phnom Penh is great for Hotel pool + spa, Cambodian cooking class, Indoor museums + colonial walks (morning).
Is July peak season in Phnom Penh?
Phnom Penh July crowds are moderate and prices are shoulder. You can travel relatively comfortably without long queues.
Best Months to Visit Phnom Penh
View Other Months
Why you can trust weather guide
Based in Chiang Mai for 8+ years, with 30+ countries visited across Southeast Asia, Japan, and Europe. Every detail in this guide is primary-source verified as of April 2026, with prices auto-refreshed via live exchange rate APIs. This isn't AI-generated boilerplate — it's written from the perspective of someone who has actually been there.