Weather in Phnom Penh

• All Year
• Winter
• Spring
• Summer
• Autumn

Yearly weather

Calculations are based on the last 8 years of historical weather data.

Temperatures

• Phnom Penh experiences its highest average maximum temperatures in March (96.8°F) and April (96.2°F), while the lowest peak occurs in October (87.8°F).

• Minimum temperatures are most elevated during May (80.4°F), and drop to their lowest in January (72.3°F).

• Overall, temperatures remain warm throughout the year, with slight fluctuations, indicating a typically tropical climate.

Conditions

• In Phnom Penh, there is a clear inverse relationship between sun hours and precipitation levels throughout the year. The months with the lowest sun hours, particularly from May to September, correspond to increased precipitation, peaking in September.

• Conversely, the dry months from January to April feature significantly higher sun hours, with January and February showing the most sunlight and very little precipitation, making them the most favorable months for sun exposure.

Astronomy

• In Phnom Penh, the earliest sunrise occurs in June at 05:37, while the latest is in January at 06:23, indicating a variation of nearly 46 minutes across the year.

• The sunset timings show a more extended range, with the earliest sunset at 17:33 in November and the latest at 18:27 in July, leading to significant changes in the length of daylight.

• Day length in Phnom Penh fluctuates from a minimum of 11 hours and 28 minutes in December to a maximum of 12 hours and 47 minutes in June, revealing a relatively stable day length variation of just over 1 hour and 19 minutes throughout the year.