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Mae Nam Beach Weather in May
May in Mae Nam Beach sees daytime temperatures around 31°C (88°F) and lows of 28°C (82°F) at night. With around 134 mm (5.3 in) of rainfall expected, it's worth packing a rain jacket.
Rainfall in Mae Nam Beach in May
Past climate data indicates that roughly 17 days will see rain, totalling around 134 mm (5.3 in) for the month. This is a wet month with frequent and often heavy showers. Both the number of rain days and the total rainfall are high.
Temperature in Mae Nam Beach in May
May in Mae Nam Beach sees highs of 31°C (88°F) and lows of 28°C (82°F) overnight. Mornings and evenings are often more comfortable than the peak afternoon hours. Nights remain warm at around 28°C (82°F). For a more comfortable sleep, a cold shower before bed and a fan or air conditioning can make a big difference.
Sunshine in Mae Nam 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
The water is 29°C (84°F), very warm by most standards. Comfortable to swim in, but not particularly refreshing if you're looking to cool off.If your ideal day consists of dry skies and pleasant temperatures, January and February typically offer the best circumstances for Mae Nam Beach.
Mae Nam 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
134 mm (5.3 in)
Rainy days
17 days
Humidity
80% *
Sunshine
193 hours *
Percentage Sunshine
*
* Data from: Koh Samui, Thailand (8 KM, 5 Miles).
Mae Nam Beach Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Mae Nam Beach - and find the best time to visit.
Daily Historical Temperatures
49-year average (1976-2025)
Based on our historical records, temperatures in Mae Nam 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
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
Historical weather records for Mae Nam Beach in May
Browse day-by-day weather records for Mae Nam Beach spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Mae Nam Beach historical weather extremes in May
Based on 44 years of weather observations in Mae Nam Beach between 1982 and 2026, these are the recorded extremes.
- The warmest day in May was on May 11, 1983, with a maximum of 37°C (99°F).
- The lowest daytime temperature in May was 28°C (82°F), recorded on May 17, 2009.
- The lowest overnight temperature recorded in May was 23°C (73°F) (May 29, 2013).
Best Places in Thailand in May
Find out more about the weather in Thailand and which places have the best travel conditions in this month. See all of Thailand in May →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Mae Nam 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. The water temperature sits at about 29°C (84°F), making it perfect for swimming and water activities. Don't forget to pack your favorite swimwear and perhaps some snorkel gear. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.
What To Do in Mae Nam Beach in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming7/10 -
Cycling7/10 -
Walking7/10 -
Camping7/10 -
Outdoor sports7/10
Mae Nam Beach 3-Day Forecast
More climate data for Mae Nam Beach
Temperature Rainfall Sunshine Humidity Water Temp
See the full Mae Nam Beach climate overview or explore weather in Thailand.
Popular in May
Where to go in May - average daytime high across popular destinations.
Bangkok
36°C (97°F) Chiang Mai
36°C (97°F) Jomtien Beach
33°C (91°F) Hua Hin33°C (91°F) Ao Nang Beach31°C (88°F) Koh Samui31°C (88°F) Ko Lanta31°C (88°F) Patong Beach30°C (86°F) Bucket list
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