Cambodia

Cambodia Weather & Climate: Monthly Averages

Monthly climate averages for Cambodia, temperatures, rainfall and the best time to visit.

Climate overview of Cambodia

Cambodia is situated in Southeast Asia and falls within the tropical zone, lying only 10° to 13° north of the equator. Like most countries in Southeast Asia, Cambodia is warm all year round, with its climate dominated by the annual monsoon cycle. This brings wet and dry seasons that control the weather and agricultural cycles of the country.

Rainy Season

The rainy season, or monsoon season, usually begins in April or May and continues until November. During this period, approximately 75% of the yearly rainfall reaches Cambodia. These rains can vary in character—sometimes taking the form of short, heavy showers followed by brilliant sunshine, while at other times, they bring continuous rain lasting for days.

Best Time to Visit Cambodia

As a general recommendation for travel, the period from December to early April is suggested as the ideal time to visit. However, March and April can already be very hot, which some might find overwhelming.

The best months to visit are from December to February. During this time, Cambodia is dry, tropically warm, and largely sunny. By mid-to-late February, hot weather begins to set in, marking the approach of the hotter months.

Explore Cambodia by month

Popular cities by month

Compare cities per month. Toggle cities on/off.

Siem Reap Phnom Penh Sihanoukville Kampot Sen Monorom Banlung
Day temperature (°C)
Monthly rainfall (mm)
Monthly sunshine (hours)

Climate map

Average daily temperature, monthly rainfall & sunshine hours across cities.

Avg day temp (°C)
32°

Regional climate differences

Explore the climate diversity across Cambodia.

Compare popular cities

Average daytime and nighttime temperatures, yearly rainfall and sunshine.

Siem Reap 32°C (90°F) 36°C (97°F) 22°C (72°F) 27°C (81°F) 1470 mm (58 in)
Phnom Penh 33°C (91°F) 37°C (99°F) 23°C (73°F) 27°C (81°F) 1415 mm (56 in) 2,501 hours
Sihanoukville 29°C (84°F) 31°C (88°F) 25°C (77°F) 27°C (81°F) 3382 mm (133 in) 2,633 hours
Kampot 30°C (86°F) 32°C (90°F) 23°C (73°F) 26°C (79°F) 2023 mm (80 in) 2,633 hours
Sen Monorom 29°C (84°F) 34°C (93°F) 20°C (68°F) 23°C (73°F) 1970 mm (78 in)
Banlung 31°C (88°F) 38°C (100°F) 21°C (70°F) 26°C (79°F) 2311 mm (91 in)

FAQ

What is the best time to visit Cambodia?

The warmest month in Banteay Chhmar is April, with daytime highs of 38°C (100°F). Sihanoukville is the sunniest destination, with 270 hours of sunshine in January. Cambodia has a distinct dry season from December to February. Explore Cambodia weather by month for a detailed breakdown.

What temperatures can I expect in Cambodia?

Banteay Chhmar is the warmest destination, reaching 38°C (100°F) in April with nights around 26°C (79°F). Koh Rong Island is the coolest, with January daytime highs of just 29°C (84°F) and nights dropping to 26°C (79°F). Temperatures are relatively stable throughout the year. See the city comparison for a full overview.

How much rain does Cambodia get?

Rainfall varies across Cambodia. Sihanoukville is the wettest, receiving 3382 mm (133 in) per year, with July the wettest month at 583 mm (23 in). Banlung is the driest at 2311 mm (91 in) per year. Use the climate map to explore rainfall patterns across regions.

How sunny is Cambodia?

Sihanoukville is the sunniest destination in Cambodia, enjoying 2,633 hours of sunshine per year, with January the brightest month at 270 hours. Overall, Cambodia enjoys abundant sunshine year-round. Compare sunshine across cities in the charts above.

What is the climate like across Cambodia?

Siem Reap has very hot summers reaching 36°C (97°F) in April and very warm winters dropping to 32°C (90°F), with 0 hours of sunshine and 1470 mm (58 in) of rain per year. Phnom Penh has very hot summers reaching 37°C (99°F) in April and very warm winters dropping to 33°C (91°F), with 2,501 hours of sunshine and 1415 mm (56 in) of rain per year. Sihanoukville has very warm summers reaching 31°C (88°F) in April and warm winters dropping to 29°C (84°F), with 2,633 hours of sunshine and 3382 mm (133 in) of rain per year. Explore the climate charts and comparison table for more cities.

Places in Cambodia

Select a city to see its average temperature, precipitation and hours of sunshine over the year.

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Travel inspiration

Must-visit destinations and experiences across Cambodia.