Phnom Penh Weather in August
Phnom Penh in August sees very high temperatures, with highs around 34°C (93°F) and overnight lows of 26°C (79°F). With the rainy season in full effect, expect around 172 mm (6.8 in) of rainfall and regular showers throughout the month.
Rainfall in Phnom Penh in August
Phnom Penh is in the rainy season in August, with rain on around 17 days and an average of 172 mm (6.8 in). The rainy season here brings regular, substantial showers. It's worth being prepared for rain on most days you're out.
Temperature in Phnom Penh in August
Daytime highs in Phnom Penh in August reach 34°C (93°F), with nights around 26°C (79°F). Mornings and evenings are often more comfortable than the peak afternoon hours. With lows around 26°C (79°F), the nights are warm enough that a sheet is usually all you need for bedding.
Sunshine in Phnom Penh in August
The area experiences a moderate amount of sunshine, with approximately 175 hours of sunlight expected. Even though this month is part of the rainy season, you could still see the sun every now and then.
Wind Speed in Phnom Penh in August
Wind speeds average 3 m/s (6 knots) during August. At this speed, light breezes keep leaves and small twigs in gentle motion while the wind also provides natural cooling. Since this is an average, some days are more tranquil while others have more persistent light winds that are more noticeable.August in Phnom Penh can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Cambodia, check out our Phnom Penh's climate page.
Phnom Penh Temperature in August
Min Temperature
26°C (79°F)
Max Temperature
34°C (93°F)
Chance of Rain
56%
Precipitation
172 mm (6.8 in)
Rainy days
17 days
Humidity
81%
Windspeed
3 m/s (6 knots)
Sunshine
175 hours
Percentage Sunshine
Historical weather for Phnom Penh in August
Browse day-by-day weather records for Phnom Penh spanning 38 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Phnom Penh historical weather extremes in August
The extremes listed below come from historical weather data collected in Phnom Penh from 2005 through 2025.
- On August 17, 2010, temperatures climbed to 40°C (104°F), marking the warmest August day on record.
- The coldest August day was on August 7, 2008, with a maximum of 27°C (81°F).
- Nighttime temperatures dropped to 22°C (72°F) on August 2, 2007, marking the coldest August night on record.
Best Places in Cambodia in August
Find out more about the weather in Cambodia and which places have the best travel conditions in this month. See all of Cambodia in August →
perfect weather
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tolerable
unpleasant
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What to Wear in Phnom Penh in August
Hot weather in August means keeping cool is the priority. Loose-fitting clothes in natural fabrics work best. Pack plenty of shorts, tank tops, and breathable shirts. Don't forget a hat, swimwear, and comfortable sandals. Heavy rain is guaranteed, please bring a good poncho and waterproof everything! It won't hurt to bring your sunglasses along, as you'll see some sunny periods.What To Do in Phnom Penh in August
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Cambodia, check out our Phnom Penh's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed
See the full Phnom Penh climate overview or explore weather in Cambodia.
