Sihanoukville weather in August
August in Sihanoukville: warm, soaked, with clean air — fine if you can take 29 rainy days.
#9 of 12 months in Sihanoukville · #695 of 897 destinations to visit in August · comfort 65/100 (tier C)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Sihanoukville in August
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Sihanoukville climate normals — August
| Daytime high | 29°C / 83°F | 🌤 warm |
|---|---|---|
| Nighttime low | 26°C / 78°F | |
| Rainfall | 454 mm / 17.9 in | ⛈ soaked |
| Rainy days | 29 days | |
| Humidity | 85% | 💦 very humid |
| Dew point | 24°C / 76°F | |
| Sunshine | 8.6 h/day | |
| Daylight | 12.5 h | |
| Wind | 14 km/h / 9 mph | |
| Air quality (US AQI) | 30 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Sihanoukville in August — FAQ
- Is August a good time to visit Sihanoukville?
- August in Sihanoukville: warm, soaked, with clean air — fine if you can take 29 rainy days. It ranks #9 of 12 months for Sihanoukville on SeasonMap's comfort score (65/100).
- What is the weather like in Sihanoukville in August?
- In August, Sihanoukville averages a daily high of 28.5°C and a low of 25.7°C, with about 453.8 mm of rain over roughly 29.4 rainy days.
- What is the air quality in Sihanoukville in August?
- Sihanoukville has a mean US Air Quality Index of about 30 in August.