Phnom Penh weather in August 2025

Expect daytime maximum temperatures of 90°F in Phnom Penh, Cambodia in August and very high heat and humidity based on long-term weather averages. There are 5 hours of sunshine per day on average with 16 days with some rainfall and typically 6.4 inches of rainfall in the month.

  • 90°F maximum daytime temperature in August in Phnom Penh90
    90°F max day temperature
  • 5 hours of sunshine per day
  • 16 days with some rainfall in August in Phnom Penh16
    16 days with some rainfall
  • 77°F minimum night-time temperature in August in Phnom Penh77
    77°F min night temperature
  • 12 hours of daylight per day in August in Phnom Penh12
    12 hours of daylight per day
  • Very high heat & humidity in August in Phnom PenhVH
    Very High heat & humidity
  • 6.4 inches monthly rainfall in August in Phnom Penh6.4
    6.4 inches of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in August in Phnom Penh11
    11+ (Extreme) UV index

More about Phnom Penh

Phnom Penh by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Cambodia

Marriott: Hotel deals & packages

  • Save on your next trip with deals & packages
  • Includes hotel, flight, cars & more packages
  • Discover Bangkok, Sydney, Toronto & beyond
Go to Marriott deal >>

View all Marriott offers

The August weather guide for Cambodia (Phnom Penh) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C)  |  Imperial (°F)

Back to top

More about Cambodia

How hot is it in Phnom Penh in August?

Daytime temperatures usually reach 90°F in Phnom Penh in August with very high heat and humidity, falling to 77°F at night.

How sunny is it in Phnom Penh in August?

There are normally 5 hours of bright sunshine each day in Phnom Penh in August - that's 43% of daylight hours.

Does it rain in Phnom Penh in August?

There are usually 16 days with some rain in Phnom Penh in August and the average monthly rainfall is 6.4 inches.

Phnom Penh August sunrise & sunset times

Browse the sunrise and sunset times for Phnom Penh in August 2025. Select a month to view Phnom Penh sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 05:48 18:25
Saturday, 16th August 2025 05:50 18:19
Sunday, 31st August 2025 05:50 18:11

Related posts

Popular travel offers

Explore holidays in the sun for less

More holidays

Airport parking

More parking

Airport lounges

More lounges

Top ^