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The weather in June in Ko Samui

It's hot in June in Ko Samui with an average temperature of 34°C. Temperatures this month range from a low of 33°C to a high of 35°C. At night, you can expect temperatures between 27°C and 28°C.

Looking for sun? June isn’t a good month to be in Ko Samui. The temperature is nice, but there’s too much chance of rain.

Average temperatures and precipitation

This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in June for Ko Samui, Thailand. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.

Temperature records

With 36°C in 2016, Ko Samui reached the highest temperature in June over the past 10 years. The lowest daytime temperature in this month was 28°C in 2017. The extreme nighttime temperatures ranged from a lowest recorded value of 24°C to a highest value of 29°C.

Water temperature

The water temperature at Ko Samui is 31°C this month. It’s really warm, perfect for a swim.

Rainfall amount

In June, there is an average of 142 mm of precipitation, spread over 16 days. The wind speed is around 4 Bft, mostly coming from the West.

Daily weather in June for Ko Samui

Click on any day in June to get detailed info about the usual weather on that day in Ko Samui. Check out the historical temperatures and precipitation over the past 10 years on this day.

June weather comparison

  Ko Samui New York
Average temperature 34°C 27°C
Max. temperature 35°C 31°C
Min. temperature 27°C -5°C
Total precipitation 142 mm 78 mm
Rainy days 16 days 11 days

Start of June

The month of June starts in Ko Samui with hot temps, averaging around 34°C during the day and nights around 28°C.

Mid June

By mid-June, daytime temps stay steady at around 34°C, with nights around 28°C. There’s a high chance of precipitation during this time.

End of June

By the end of June, the average daytime temperature in Ko Samui is around 34°C, while nighttime temps are about 28°C. A shower might pop up, but overall, the weather will be dry and sunny.

UV index

The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.

The typhoon season in Ko Samui runs from June to November.

Check out the climate of Ko Samui for all months and discover the best travel time

Curious about the weather in other parts of Thailand? Check out the climate and weather for spots like Bangkok, Chiang Mai, Phuket, or explore other destinations in Thailand.

Temperature charts

These charts show the average temperatures in June in Ko Samui, Thailand. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Daily Temperature in June in Ko Samui

Temperature in June in Ko Samui over the years

Precipitation charts

These charts show the average amount of precipitation in June in Ko Samui, Thailand. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.

Daily Precipitation in June in Ko Samui

Total precipitation in June in Ko Samui over the years

Daily UV index in June in Ko Samui

This chart shows the average daily UV index in June in Ko Samui, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.

Weather experiences in June in Ko Samui

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Average weather in Ko Samui by month

Click on a month below to see detailed weather info for Ko Samui. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.