Temperature
Hot by day, warm at night.
89°Ftypical Aug high
Phnom Penh is most comfortable in the drier months around January and December. Typical daytime highs run about 87-94°F year-round. The climate is hot and humid. Rainy season runs roughly June to October.

Hot by day, warm at night.
Rain most days.
Cloudier spells limit sunshine.
Hot days, with humid stretches.
Mostly cloudy skies.
Want a side-by-side climate view? Compare Phnom Penh with Ho Chi Minh City.
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jun 1, 2026
Data & methodology