Climate in Phnom Penh

Phnom Penh, Cambodia has a tropical climate. The annual average temperature is about 26.6°C and the city receives roughly 1400 mm of precipitation across 115 rainy days a year, with around 1539 hours of sunshine. The warmest month is Jul (highs near 32.6°C) and the coldest is Jan (lows near 20.6°C). These are deterministic, latitude- and region-based planning estimates — not a forecast or measured station data; check current conditions with an official meteorological service before travel.

Data year 2025; last updated 2026-05-16.

Phnom Penh is classified as Tropical. This reflects its annual temperature range and the seasonal pattern of its rainfall.

Phnom Penh receives about 1400 mm of precipitation a year over roughly 115 rainy days. The wettest month is Jul and the driest is Jan.

Phnom Penh sees an estimated 1539 hours of sunshine a year, concentrated in the warmer months around Jul.

By temperature and rainfall, the most comfortable months in Phnom Penh are Jan, Feb, Dec. Conditions vary year to year — verify with a current forecast before booking.

Phnom Penh has a climate comfort score of 66/100, a comfortable year-round climate by this measure. The score weights mild temperatures most, then rainfall balance, sunshine, low seasonality, and the absence of extreme winter cold or summer heat.

• Climate in Bangkok — Tropical, comfort 64/100
• Climate in Ho Chi Minh City — Tropical, comfort 61/100
• Climate in Hanoi — Tropical, comfort 71/100