Weather in May in Thailand

Many people wonder what the weather conditions are in May in Thailand. Is this month a good time to go to Thailand? To answer that question we created this page with all the information you need.

What is the weather like in Thailand in May?

The weather in Thailand in May ranges from poor to tolerable depending on the destination.

In May the average maximum daytime temperatures are very warm and range from 32°C (90°F) in Songkhla to 36°C (97°F) in Kanchanaburi. Nighttime temperatures generally drop to 26°C (78°F) in Kanchanaburi and 24°C (75°F) in Songkhla. Temperatures can be very high, so be prepared and make sure to pack light clothes.

Precipitation ranges from high in Hua Hin with 111mm (4.4inch) rainfall to heavy in Ranong with 493mm (19inch) rainfall. In general it is also a sunny month with an average of 216 hours of sunshine in Bangkok during the whole month.

We invite you to have a look at the map below to find out more about the different weather conditions per location in Thailand.

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.

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 / 3.5inch 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 warm temperatures with maximum daytime temperatures around 34°C (94°F), minimum nighttime temperatures around 26°C (79°F) and heavy monthly rainfall. So on average the conditions are poor that month.

Bangkok
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
<<  
36°C / 96°F 
27°C / 81°F 
257 hours 
92mm / 3.6inch 
6 days 
34°C / 94°F 
26°C / 79°F 
216 hours 
250mm / 9.8inch 
16 days 
poor 
June   >> June
>>  
34°C / 93°F 
26°C / 79°F 
178 hours 
158mm / 6.2inch 
16 days 
Climate in Bangkok

Average weather in Chiang Mai

In May Chiang Mai generally has very warm temperatures with maximum daytime temperatures around 34°C (93°F), minimum nighttime temperatures around 24°C (75°F) and high monthly rainfall. So on average the conditions are unpleasant that month.

Chiang Mai
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
<<  
36°C / 98°F 
23°C / 73°F 
280 hours 
59mm / 2.3inch 
7 days 
poor 
34°C / 93°F 
24°C / 75°F 
199 hours 
158mm / 6.2inch 
15 days 
June   >> June
>>  
33°C / 91°F 
24°C / 75°F 
158 hours 
132mm / 5.2inch 
17 days 
Climate in Chiang Mai

Average weather in Patong Beach

In May Patong Beach generally has very warm temperatures with maximum daytime temperatures around 33°C (91°F), minimum nighttime temperatures around 25°C (77°F) and heavy monthly rainfall. So on average the conditions are poor that month.

Patong Beach
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
<<  
34°C / 93°F 
25°C / 77°F 
183 hours 
142mm / 5.6inch 
12 days 
33°C / 91°F 
25°C / 77°F 
151 hours 
260mm / 10inch 
19 days 
poor 
June   >> June
>>  
32°C / 90°F 
25°C / 77°F 
150 hours 
210mm / 8.3inch 
19 days 
poor 
Climate in Patong Beach

Average weather in Hua Hin

In May Hua Hin generally has very warm temperatures with maximum daytime temperatures around 34°C (93°F), minimum nighttime temperatures around 26°C (79°F) and high monthly rainfall. So on average the conditions are unpleasant that month.

Hua Hin
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
<<  
34°C / 93°F 
26°C / 79°F 
240 hours 
44mm / 1.7inch 
4 days 
34°C / 93°F 
26°C / 79°F 
195 hours 
111mm / 4.4inch 
13 days 
June   >> June
>>  
33°C / 92°F 
26°C / 79°F 
152 hours 
81mm / 3.2inch 
14 days 
Climate in Hua Hin

Average weather in Pattaya South

In May Pattaya South generally has very warm temperatures with maximum daytime temperatures around 33°C (91°F), minimum nighttime temperatures around 26°C (80°F) and high monthly rainfall. So on average the conditions are tolerable that month.

Pattaya South
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
<<  
33°C / 91°F 
26°C / 79°F 
205 hours 
64mm / 2.5inch 
4 days 
33°C / 91°F 
26°C / 80°F 
157 hours 
150mm / 5.9inch 
12 days 
June   >> June
>>  
32°C / 90°F 
26°C / 79°F 
114 hours 
120mm / 4.7inch 
12 days 
Climate in Pattaya South

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

Is May the best time to go to Thailand?

In our opinion May is not the best time to visit Thailand with commonly poor weather in Bangkok.

On average the best time to visit Thailand is in January and December with generally perfect weather in Bangkok. The worst months are May, August, September and October that can 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 almost all countries in the world. Are you going to Thailand? Get detailed historical weather averages for many cities in Thailand.

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