2026 Climate Averages

Weather in Siem Reap in August

It's a rainy period, but great for indoor activities, museums, and lower prices.

Climate Overview

August is a wet time to visit Siem Reap. Siem Reap has a Tropical climate with average yearly highs of 32°C, lows of 25°C, and approximately 26 rainy days per month.

Avg High

32°C

Avg Low

25°C

Rainy days

26days

Daylight

12.6h

Is August a good time to visit Siem Reap?

It's a rainy period, but great for indoor activities, museums, and lower prices.

Daylight

Sunrise

5:53 AM

Sunset

6:27 PM

Weather by Month
Monthly weather data
Month High Low Rainy days Condition
January 33°C 23°C 0 Excellent (best)
February 34°C 23°C 0 Excellent (best)
March 35°C 26°C 8 Excellent (best)
April 34°C 26°C 17 Wet
May 35°C 27°C 19 Wet
June 32°C 25°C 25 Wet
July 32°C 25°C 26 Wet
August 32°C 25°C 26 Wet
September 31°C 25°C 28 Wet
October 29°C 23°C 25 Wet
November 30°C 23°C 6 Excellent (best)
December 30°C 22°C 3 Excellent (best)

Weather data: Open-Meteo Archive (2020-2025) • Open-Meteo.com (CC BY 4.0) • Historical avg. 2020–2025

What to Pack for August

Humidity-wicking clothes, insect repellent, waterproof bag, and rain poncho.

Climate: Tropical
Travel Context Expect humidity and afternoon showers—plan flexible days.

Planning a trip to Siem Reap?

Common Questions

Is August a good time to visit Siem Reap? +

August is typically Wet for visiting Siem Reap, with average highs of 32°C and around 26 rainy days.

What should I pack for Siem Reap in August? +

With highs of 32°C and lows of 25°C in {month}, we recommend: Humidity-wicking clothes, insect repellent, waterproof bag, and rain poncho.

Does it rain a lot in Siem Reap in August? +

Siem Reap typically sees around 26 rainy days in August.

How many hours of daylight are there in Siem Reap in August? +

In August, Siem Reap gets approximately 12.6 hours of daylight per day.

Is August peak season in Siem Reap? +

No, August is not peak season in Siem Reap. Expect better value on accommodation and fewer tourists.

What is the best month to visit Siem Reap? +

The best months to visit Siem Reap are November, December, January, February, March, when the weather is optimal for sightseeing.

Weather Data: Based on 2020–2025 historical climate data from Open-Meteo

Solar calculations: SunCalc (timezone: Asia/Phnom_Penh)

Last Updated: January 2026

August

32° / 25°
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