Siem Reap
Enough visitors for atmosphere, few enough for space. Full moats, lush baray country and easy last-minute bookings.
Siem Reap guide
Month by month
Cambodia in August
Green season with a small summer bump: August is wet like July but noticeably livelier, as holiday travellers pass through the region.
- Siem Reap highs
- ~32°C
- Rainy days (SR)
- 25
- Crowds
- Moderate
- Public holidays
- None
The short answer
What August is really like
Weather-wise August is July’s twin, about 204 mm in Siem Reap, highs near 32°C, storms favouring the afternoon. What changes is the company: arrivals tick up on the back of northern-hemisphere holidays, so the big sights regain a gentle buzz without approaching high-season crowds.
It is a good compromise month: green landscapes and low prices, but enough fellow travellers that hostels, tours and night markets feel alive. Families on summer breaks are the natural audience.
The numbers
August weather, destination by destination
Ten-year averages, not brochure promises: computed from the same ERA5 climate dataset that powers our weather tool.
| Destination | Avg. daily high | Rainfall | Rainy days |
|---|---|---|---|
| Siem Reap | 32°C | 204 mm | 25 |
| Phnom Penh | 32°C | 209 mm | 26 |
| Battambang | 33°C | 137 mm | 24 |
| Kampot | 29°C | 160 mm | 25 |
| Kep | 29°C | 218 mm | 26 |
| Koh Rong (islands) | 28°C | 405 mm | 29 |
| Mondulkiri | 27°C | 260 mm | 30 |
International crowds this month
Moderate, August ranks level 2 of 4 for international arrivals in the Siem Reap region (quartiles on Ministry of Tourism monthly data).
Dates that shape the month
Holidays & festivals in August
No official public holidays fall in August 2026, which also means no holiday closures to plan around. The live agenda below has what's actually on.
Our picks
Where to go in August
Practical
Tips for August
- The dry-ish morning window is your friend, book sunrise or early tours, keep afternoons loose.
- August is popular with European families: the better mid-range hotels can actually fill, unlike June.
- Rivers and waterfalls are near full power: good month for kayaking and countryside trips.
- Keep electronics in zip bags on travel days; downpours arrive fast.
Good to know
Frequently asked questions
Is August high or low season?
Low season with an asterisk: arrivals rise from the June–July floor as summer-holiday travellers arrive, but numbers remain far below December–February.
What is the weather like in August?
Warm (about 32°C) and wet, around 204 mm in Siem Reap, mostly as short heavy storms. Mornings are usually the clear window.
Is August good for families?
Yes, with the right expectations: green-season prices, pools everywhere, and afternoon rain that conveniently matches nap time. Keep island plans flexible.
Continue planning
More Cambodia travel info
Visa & Entry Requirementse-Visa, visa on arrival, e-Arrival card and entry rules.How Many Days & Itineraries3 days to 2 weeks: routes that actually work.Festivals & Public HolidaysOfficial holiday dates: Khmer New Year, Water Festival…Money & PaymentsDollars, riel, KHQR, ATMs and tipping.Getting AroundBuses, boats, flights, trains and city transport.What’s happening todayConcerts, markets, exhibitions and things to do this week.
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