Choeng Mon Beach Weather in May

May in Choeng Mon Beach brings very high temperatures around 31°C (88°F) during the day, dropping to 28°C (82°F) at night, with quite a bit of rainfall expected, averaging around 137 mm (5.4 in) for the month.

Rainfall in Choeng Mon Beach in May

Records from the past 30 years suggest around 17 days of rain, with 137 mm (5.4 in) average for the month. Rain falls regularly this month and can be quite heavy when it does. Showers can be substantial, so waterproof gear is a good idea.

Temperature in Choeng Mon Beach in May

Choeng Mon Beach in May gets highs of 31°C (88°F) during the day and drops to 28°C (82°F) at night. It's usually most comfortable outside during the morning and later in the day. Nights are warm at 28°C (82°F), which can make sleeping uncomfortable. Keeping windows open or using a fan can help. A cold shower before bed is also a good way to cool down.

Sunshine in Choeng Mon Beach in May

Expect a lot of sunshine this month, with about 193 hours of sun. These sunny conditions add to the overall experience.

Average water temperature in May

With water at 29°C (84°F), conditions are warm and calm. Perfect for those who like tropical water temperatures, though it won't cool you down much.

If your ideal day consists of dry skies and pleasant temperatures, January and February typically offer the best circumstances for Choeng Mon Beach.

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Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
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• December

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

Choeng Mon Beach Temperature in May

Min Temperature 28°C (82°F)  

Max Temperature 31°C (88°F)  

Water Temperature 29°C (84°F) *  

Chance of Rain 56%  

Precipitation 137 mm (5.4 in)  

Rainy days 17 days  

Humidity 80% *  

Sunshine 193 hours *  

Percentage Sunshine *  

* Data from: Koh Samui, Thailand (14 KM, 9 Miles).

Daily Historical Temperatures

49-year average (1976-2025)

Based on our historical records, temperatures in Choeng Mon Beach typically stay consistent throughout May, with daily highs averaging around 31°C (88°F). Nights are warm, with lows around 27°C (81°F).

Average temperatures in May

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Daily Historical Precipitation

49-year average (1976-2025)

Average daily rainfall for each day of the month based on long-term records.

Average precipitation in May

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Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

‹ January February March April May June July August September October November December ›

Historical weather for Choeng Mon Beach in May

Browse day-by-day weather records for Choeng Mon Beach spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Historical weather Temperatures Precipitation

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‹ January February March April May June July August September October November December ›

Choeng Mon Beach historical weather extremes in May

Based on 44 years of weather observations in Choeng Mon Beach between 1982 and 2026, these are the recorded extremes.

• Choeng Mon Beach recorded its highest May temperature of 37°C (99°F) on May 11, 1983.
• The lowest daytime temperature in May was 28°C (82°F), recorded on May 17, 2009.
• The coldest night in May in Choeng Mon Beach was on May 29, 2013, with a minimum of 23°C (73°F).

What to Wear in Choeng Mon Beach in May

Warm weather calls for comfortable, breathable clothing in May. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). High rain levels are expected, so pack waterproof gear and an umbrella or poncho. With water temperatures around 29°C (84°F), swimming conditions are excellent. Pack your swimsuit, goggles, and maybe some water shoes. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.

What To Do in Choeng Mon Beach in May

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

7/10

Cycling

7/10

Walking

7/10

Camping

7/10

Outdoor sports

7/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

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

More climate data for Choeng Mon Beach

Temperature Rainfall Sunshine Humidity Water Temp

See the full Choeng Mon Beach climate overview or explore weather in Thailand.