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Weather in May
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Weather in May in Thailand

Planning a journey to Thailand this May and curious over the weather conditions to await? Your essential details are found on this page, answering your query:

What is the weather like in Thailand in May?

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

Temperatures

Based on our climate data spanning from 1990-2020, the average maximum temperature is very warm in Bo Kluea at 30°C to very hot in Nakhon Sawan at 38°C. Nighttime temperatures generally drop to 27°C in Nakhon Sawan and 19°C in Bo Kluea. These night and day temperatures are average and some days may be even warmer. So be prepared and dress for the heat.

For a closer look at conditions across Thailand, refer to the map below.

Precipitation

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.

Average sunshine

The days are mostly sunny, with an average total of around 216 hours of sunshine in Bangkok. The sunlight during this month doesn't just make the days brighter, it also seems to make everyone a bit more cheerful.

For an in-depth overview of the yearly conditions, do visit our Thailand climate page.

Where to go in Thailand in May

Find more information for the most popular destinations in the Thailand on the map below. Click on a destination dot for more details.

Weather conditions Weather
Temperatures
Precipitation
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°C and 29°C and not too much precipitation (less than 90 mm a month).

Select a Month of Interest

Check the conditions for any month of the year.

For a detailed overview over the year and the best time to visit Thailand, check out our Thailand's climate page.

Popular destinations

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

Bangkok

In May Bangkok generally has extremely high temperatures with maximum daytime temperatures around 36°C, minimum nighttime temperatures around 28°C and heavy 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 
90 mm 
6 days 
poor 
May May
36°C 
28°C 
216 hours 
201 mm 
14 days 
poor 
June   >> June
>>  
35°C 
27°C 
178 hours 
198 mm 
15 days 
poor 
Climate in Bangkok

Chiang Mai

In May Chiang Mai generally has extremely 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 
May May
36°C 
25°C 
199 hours 
117 mm 
16 days 
poor 
June   >> June
>>  
34°C 
25°C 
158 hours 
148 mm 
17 days 
unpleasant 
Climate in Chiang Mai

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 
tolerable 
May May
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

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 
tolerable 
May May
33°C 
27°C 
195 hours 
105 mm 
14 days 
tolerable 
June   >> June
>>  
33°C 
27°C 
152 hours 
79 mm 
16 days 
pleasant 
Climate in Hua Hin

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 
tolerable 
May May
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, July, August, September and October tend to have poor weather conditions.

Interested in more climate information?

We have much more information about the climate in Thailand.

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 travel conditions. Find out where to go with our weather planner.