Weather in Sihanoukville in September
Sihanoukville, Cambodia averages a high of 28.1°C (82.6°F) and low of 24.9°C (76.8°F) in September, with 28 rain days and 7.7 hours of daily sunshine. Travel score: 62.4/100 (Good). The best time to visit Sihanoukville is January.
High
28°C83°F
Low
25°C77°F
🌧️
28
rain days
☀️
7.7
hrs/day sunshine
💧
87%
humidity
62— Good
September in Sihanoukville is hot and very rainy — pack an umbrella and enjoy indoor attractions too.
What are the average temperatures in Sihanoukville?
How much does it rain in Sihanoukville in September?
Sihanoukville receives an average of 474.3mm of rainfall across 28 rainy days in September. The annual total is 3135.7mm.
What should I pack for Sihanoukville in September?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light layers and t-shirts
Warm weather around 28°C
🧥
Waterproof jacket
Frequent rain expected (28 rainy days)
☔
Umbrella
Essential for the rainy season
👢
Waterproof shoes
Keep your feet dry in wet conditions
🧴
Sunscreen SPF 30+
8 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
Traveling to Cambodia in September?
Don't let a public holiday surprise you — restaurants, shops, and attractions may be closed.
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Data based on 1994–2024 averages · Last updated: 2024-12-31