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    Thailand

    Southeast Thailand weather in May 2025

    Thailand

    Southeast Thailand weather in May 2025

     

    Day

    33 °C

     

    Night

    24 °C

     

    Sea

    30 °C

     

    Precipitation

    139 mm

    in month

     

    Rainy days

    19 days

    in month

     

    Daylight

    12 hours

    average

     

    Sunshine

    6 hours

    average

     

    Humidity

    79 %

     

    Day

    33 °C

     

    Night

    24 °C

     

    Sea

    30 °C

     

    Precipitation

    139 mm

    in month

     

    Rainy days

    19 days

    in month

     

    Daylight

    12 hours

    average

     

    Sunshine

    6 hours

    average

     

    Humidity

    79 %

    Overview: Southeast Thailand

    Southeast Thailand is a popular destination for tourists, known for its beautiful beaches, stunning temples, and vibrant markets. Explore the island of Koh Samui, which offers a range of activities, including swimming, snorkeling, and scuba diving. Koh Phangan, located nearby, famous for its full moon parties, beautiful beaches, and lush jungles. Don't forget to taste local spicy curries, noodle dishes, and fresh seafood.

    Travel information

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    Ko Samui Island
    Nice beach by the sea with turquise water in Koh Phangan in sunny weather with few clouds
    Enjoyable beach with turquise water in Koh Tao on a sunny day with some clouds

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    Weather overview and FAQs

    Weather overview

    In Southeast Thailand in May, the average air temperature ranges from 33 °C (92 °F) during the day to 24 °C (75 °F) at night. There are 19 days of rain on average, where the rainfall is 139 mm (5.48 in).

    Is May a good month to visit Southeast Thailand?

    There are good conditions for visiting in Southeast Thailand in May. The temperature of the sea will be perfect at 30 °C (86 °F). At night, temperatures hover around a pleasant 24 °C (75 °F). Some people will find 33 °C (92 °F) temperature high, while others will enjoy it.

    What is the temperature in Southeast Thailand during the day in May?

    In Southeast Thailand in May, the average daily temperatures will be 33 °C (92 °F). The great temperature for lying by the sea or pool and sunbathing, everywhere else you will probably be a bit hot. Don't forget to drink during the day, in these temperatures you should hydrate yourself a lot.

    What is the sea temperature in Southeast Thailand in May?

    In May in Southeast Thailand expect the sea to be warm at 30 °C (86 °F). Really warm sea, you can spend hours in it. For people seeking refreshment, this sea temperature is too high.

    How many rainy days can I expect in May in Southeast Thailand?

    In Southeast Thailand in May, we can expect 19 days to be rainy, that is, days when precipitation exceeds 2 mm (0.08 in). Converted to days of the week, this means that it will occur on an average of 4.5 days of the week, or in general - 64 % days.

    What is the rainfall intensity in Southeast Thailand in May?

    In May in Southeast Thailand, there is 139 mm (5.48 in) rainfall, which means on average 5 mm (0.18 in) rainfall per day.

    What is the night temperature in Southeast Thailand in May?

    The average night temperature in Southeast Thailand in May is 24 °C (75 °F). A very pleasant temperature for long evening walks, fun over a drink outside, or doing sports in the morning. If possible, look for a hotel with air conditioning.

    How many sunny hours can I expect in May in Southeast Thailand?

    In May in Southeast Thailand, you can expect around 6 hours of sunshine.

    Is May part of the wet season in Southeast Thailand?

    No, there is no wet season in May in Southeast Thailand - you can expect 19 days of rain during the month.

    Is the temperature rising or falling in the course of time in Southeast Thailand in May?

    During May in Southeast Thailand, the day temperatures are decreasing - from 34 °C (93 °F) at the beginning of the month to 33 °C (91 °F) at the end of the month.

    Is it hot in May in Southeast Thailand?

    Yes, it is hot in Southeast Thailand in May, although the perception of heat can be subjective. Daytime temperatures rise to 33 °C (92 °F).

    Is the weather in Southeast Thailand warmer in May than in April?

    No, in Southeast Thailand in May the temperature is not higher than in April.

    How long is the day (from dawn till dusk) in Southeast Thailand in May?

    The length of daylight in Southeast Thailand in May is 12 hours.

    What level of humidity is to expect in May in Southeast Thailand?

    Humidity in Southeast Thailand in May is 79 %. This humidity is rather above average, but except for sensitive individuals, it should not be a problem.

    Is Southeast Thailand rainier in May than in June?

    No, in Southeast Thailand in May it does not rain more than in June.

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