August · Cambodia
Best time to visit Sihanoukville in August Weather, crowds & prices
Weather in Sihanoukville in August
Average temperature 28°C, 272 mm of rain, about 18 days with 6+ hours of sunshine and 85% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
August score
5.5/10
Ranked #10 of 12 months
- Avg temp
- 28°C
- Rainfall
- 272 mm
- Humidity
- 85%
- Days with 6h+ sun
- 18
- Crowd Density
- Moderate Crowds
- Average Expenses
- $ · Budget Friendly ($)
August in Sihanoukville scores 5.5/10 for beach and coastal travel - ranked #10 of 12. Expect around 28°C, 272 mm of rain, and roughly 18 days with 6+ hours of sunshine this month.
Sihanoukville is Cambodia's beach and ferry hub for the southern islands.
August in Sihanoukville: mixed conditions, plan around the weather
August averages 28°C (82°F) and humidity near 85%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
272 mm of rain puts this in monsoon territory — about 18 days with 6+ hours of sunshine across the whole month, and multi-day washouts are normal.
It scores 5.5/10 here, 10th of 12 months, against 9.8/10 in the destination's best month.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.
Figure on low-season pricing, with crowds are moderate.
Flexible dates? February scores 4.3 points higher here — enough to change the trip.
Frequently asked
- What is the weather like in Sihanoukville in August?
- In August, Sihanoukville averages 28°C, 272 mm of rain, and about 18 days with 6+ hours of sunshine. Its climate-comfort score is 5.5/10.
- Is August a good time to visit Sihanoukville?
- August earns a 5.5/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Sihanoukville in August?
- Expect about 272 mm of rain in August. Average humidity is 85% and there are about 18 days with 6+ hours of sunshine.
Curated in Sihanoukville
Tickets & experiences
Things to do in Sihanoukville
Sihanoukville, Cambodia. Live activities and tours from GetYourGuide, matched to this destination.