Cambodia weather in May

Are you planning a trip to Cambodia in May and wondering what kind of weather to expect? This page has all the details you need.

What is the weather like in Cambodia in May?

Weather in Cambodia varies in May, with very warm temperatures and precipitation ranging from high to heavy.

The average maximum temperatures are very warm and range from 30°C (87°F) in Koh Rong Island to 37°C (98°F) in Battambang. These night and day temperatures are average and some days may be even warmer. So be prepared and dress for the heat.

Precipitation in May varies from high rainfall in Battambang with an average of 134mm (5.3 inches) to heavy rainfall in Sihanoukville with 387mm (15 inches).

For more details on the yearly weather and climate conditions, visit our Cambodia climate page. To learn more about the weather conditions in specific areas of Cambodia in May, check out the map below.

Where to go in Cambodia in May

Find the average weather conditions in May for the most popular destinations in Cambodia on the map below. Click on a destination dot for more detailed information.

Map not visible? Whoops sorry! Please refresh the page.
Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20-29ºC / 68-84ºF and not too much precipitation (less than 90mm / 3.5inches a month).

Popular destinations in Cambodia

What is the weather like in May for the 5 most popular destinations in Cambodia?

Average weather in Siem Reap

In May Siem Reap generally has very high temperatures with maximum daytime temperatures around 35°C (95°F), minimum nighttime temperatures around 27°C (80°F) and heavy monthly rainfall. So on average the conditions are poor that month.

Siem Reap
Max temperature Max temp
Min temperature Min temp
Monthly rainfall Rainfall
Monthly rainy days Rainy days
Weather conditions Weather
<<   April April
<<  
36°C / 97°F 
27°C / 80°F 
107mm / 4.2" 
7 days 
poor 
35°C / 95°F 
27°C / 80°F 
168mm / 6.6" 
15 days 
poor 
June   >> June
>>  
34°C / 94°F 
27°C / 80°F 
158mm / 6.2" 
15 days 
Climate in Siem Reap

Average weather in Phnom Penh

In May Phnom Penh generally has very high temperatures with maximum daytime temperatures around 36°C (97°F), minimum nighttime temperatures around 27°C (80°F) and high monthly rainfall. So on average the conditions are poor that month.

Phnom Penh
Max temperature Max temp
Min temperature Min temp
Monthly sun hours Sun hours
Monthly rainfall Rainfall
Monthly rainy days Rainy days
Weather conditions Weather
<<   April April
<<  
37°C / 99°F 
27°C / 80°F 
241 hours 
94mm / 3.7" 
7 days 
poor 
36°C / 97°F 
27°C / 80°F 
203 hours 
157mm / 6.2" 
15 days 
poor 
June   >> June
>>  
35°C / 95°F 
26°C / 79°F 
192 hours 
159mm / 6.3" 
16 days 
poor 
Climate in Phnom Penh

Average weather in Sihanoukville

In May Sihanoukville generally has very high temperatures with maximum daytime temperatures around 31°C (87°F), minimum nighttime temperatures around 27°C (81°F) and heavy monthly rainfall. So on average the conditions are poor that month.

Sihanoukville
Max temperature Max temp
Min temperature Min temp
Monthly sun hours Sun hours
Monthly rainfall Rainfall
Monthly rainy days Rainy days
Weather conditions Weather
<<   April April
<<  
31°C / 88°F 
27°C / 81°F 
250 hours 
124mm / 4.9" 
9 days 
31°C / 87°F 
27°C / 81°F 
225 hours 
387mm / 15" 
17 days 
poor 
June   >> June
>>  
30°C / 87°F 
27°C / 80°F 
199 hours 
523mm / 21" 
19 days 
poor 
Climate in Sihanoukville

Average weather in Kampot

In May Kampot generally has very high temperatures with maximum daytime temperatures around 32°C (89°F), minimum nighttime temperatures around 26°C (79°F) and heavy monthly rainfall. So on average the conditions are poor that month.

Kampot
Max temperature Max temp
Min temperature Min temp
Monthly sun hours Sun hours
Monthly rainfall Rainfall
Monthly rainy days Rainy days
Weather conditions Weather
<<   April April
<<  
32°C / 90°F 
26°C / 78°F 
250 hours 
128mm / 5" 
8 days 
32°C / 89°F 
26°C / 79°F 
225 hours 
222mm / 8.7" 
16 days 
poor 
June   >> June
>>  
31°C / 87°F 
26°C / 78°F 
199 hours 
265mm / 10" 
18 days 
poor 
Climate in Kampot

Average weather in Battambang

In May Battambang generally has very high temperatures with maximum daytime temperatures around 37°C (98°F), minimum nighttime temperatures around 27°C (80°F) and high monthly rainfall. So on average the conditions are poor that month.

Battambang
Max temperature Max temp
Min temperature Min temp
Monthly rainfall Rainfall
Monthly rainy days Rainy days
Weather conditions Weather
<<   April April
<<  
38°C / 100°F 
26°C / 79°F 
101mm / 4" 
8 days 
poor 
37°C / 98°F 
27°C / 80°F 
134mm / 5.3" 
15 days 
poor 
June   >> June
>>  
36°C / 96°F 
27°C / 80°F 
129mm / 5.1" 
14 days 
poor 
Climate in Battambang

Is your destination not in the list? Have a look at other destinations in Cambodia.

Is May the best time to go to Cambodia?

In our opinion May is not the best time to visit Cambodia with commonly poor weather in Siem Reap.

On average the best time to visit Cambodia is in January and December with generally perfect weather in Siem Reap. The worst months are March, April, May, September and October that can have poor weather conditions.

Interested in more climate information?

We have much more information about the climate in Cambodia. Interested in the weather conditions in a specific month? Select the month below.

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  • Weather and climate has detailed information for every country in the world. Are you going to Cambodia? Get detailed historical weather averages for many cities in Cambodia.

    Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.