Thailand weather in May

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

What is the weather like in Thailand in May?

May in Thailand generally has very warm temperatures, with precipitation levels ranging from moderate to heavy.

The average maximum temperatures are very warm and range from 30°C in Ban Khlong Muang to 38°C in Nakhon Sawan. Nighttime temperatures generally drop to 27°C in Nakhon Sawan and 25°C in Ban Khlong Muang. The temperatures mentioned for both day and night are typical averages. However some days might get even hotter. It's best to stay prepared by wearing cloths suitable for the warmth.

In May, precipitation varies across different areas. From moderate rainfall in Puk Tian with an average of 95 mm to heavy rainfall in Ban Lao Kok Kho with 495 mm. Meanwhile, Bangkok enjoys approximately 216 hours of sunshine, offering a mostly sunny climate that adds a pleasant and vibrant feel to the month.

For specific regional insights in Thailand for May, refer to the map provided below. For an in-depth overview of the yearly weather conditions, do visit our Thailand climate page.

Where to go in Thailand in May

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

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

Popular destinations in Thailand

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

Average weather in Bangkok

In May Bangkok generally has very high temperatures with maximum daytime temperatures around 36°C, minimum nighttime temperatures around 28°C and high monthly rainfall. So on average the conditions are poor that month.

Bangkok
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   April April
<<  
37°C 
28°C 
257 hours 
75 mm 
6 days 
poor 
36°C 
28°C 
216 hours 
136 mm 
14 days 
poor 
June   >> June
>>  
35°C 
27°C 
178 hours 
138 mm 
15 days 
poor 
Climate in Bangkok

Average weather in Chiang Mai

In May Chiang Mai generally has very high temperatures with maximum daytime temperatures around 36°C, minimum nighttime temperatures around 25°C and high monthly rainfall. So on average the conditions are poor that month.

Chiang Mai
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   April April
<<  
38°C 
24°C 
280 hours 
32 mm 
6 days 
poor 
36°C 
25°C 
199 hours 
117 mm 
16 days 
poor 
June   >> June
>>  
34°C 
25°C 
158 hours 
148 mm 
17 days 
Climate in Chiang Mai

Average weather in Patong Beach

In May Patong Beach generally has very high temperatures with maximum daytime temperatures around 30°C, minimum nighttime temperatures around 27°C and heavy monthly rainfall. So on average the conditions are poor that month.

Patong Beach
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   April April
<<  
30°C 
27°C 
183 hours 
139 mm 
12 days 
30°C 
27°C 
151 hours 
247 mm 
21 days 
poor 
June   >> June
>>  
30°C 
27°C 
150 hours 
227 mm 
20 days 
poor 
Climate in Patong Beach

Average weather in Hua Hin

In May Hua Hin generally has very high temperatures with maximum daytime temperatures around 33°C, minimum nighttime temperatures around 27°C and high monthly rainfall. So on average the conditions are tolerable that month.

Hua Hin
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   April April
<<  
34°C 
27°C 
240 hours 
64 mm 
4 days 
33°C 
27°C 
195 hours 
105 mm 
14 days 
June   >> June
>>  
33°C 
27°C 
152 hours 
79 mm 
16 days 
Climate in Hua Hin

Average weather in Ao Nang Beach

In May Ao Nang Beach generally has very high temperatures with maximum daytime temperatures around 31°C, minimum nighttime temperatures around 27°C and heavy monthly rainfall. So on average the conditions are poor that month.

Ao Nang Beach
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   April April
<<  
32°C 
27°C 
185 hours 
158 mm 
11 days 
31°C 
27°C 
156 hours 
263 mm 
21 days 
poor 
June   >> June
>>  
31°C 
26°C 
151 hours 
262 mm 
19 days 
poor 
Climate in Ao Nang Beach

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

Is May the best time to visit Thailand?

In our opinion, May may not be the ideal time to visit Thailand due to the typically poor weather in Bangkok.

On average, the best time to visit Thailand is in January and December with generally perfect weather in Bangkok. On the other hand, the months of April, May, June and September tend to have poor weather conditions.

Interested in more climate information?

We have much more information about the climate in Thailand. 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 Thailand? Get detailed historical weather averages for many cities in Thailand.

    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.