Discover Kok Kood: a hidden gem in Thailand
Discover the hidden gem of Thailand - Koh Kood! Explore stunning beaches, waterfalls and eco-friendly resorts while enjoying a peaceful atmosphere away from the crowds.
Lamai Beach Weather in May
In Lamai Beach, May brings very high daytime temperatures around 31°C (88°F), with nights cooling to 28°C (82°F). Expect quite a bit of rainfall this month.
Rainfall in Lamai Beach in May
You can expect rain on around 17 days based on historical patterns, with 124 mm (4.9 in) average 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 Lamai Beach in May
If you're visiting Lamai Beach in May, expect highs of 31°C (88°F) and overnight lows around 28°C (82°F). Indoor breaks or shaded spots can make the warmer part of the day much more comfortable. 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 Lamai 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.Our weather planner can help you find worldwide destinations with pleasant weather during this period. January and February typically offer the best weather for Lamai Beach.
Lamai 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
124 mm (4.9 in)
Rainy days
17 days
Humidity
80% *
Sunshine
193 hours *
Percentage Sunshine
*
* Data from: Koh Samui, Thailand (14 KM, 8 Miles).
Lamai Beach Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Lamai Beach - and find the best time to visit.
Daily Historical Temperatures
49-year average (1976-2025)
Based on our historical records, temperatures in Lamai 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 Lamai Beach in May
Browse day-by-day weather records for Lamai Beach spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Lamai Beach historical weather extremes in May
According to our 44 years of weather records for Lamai Beach, the following extremes were recorded between 1982 and 2026.
- On May 11, 1983, temperatures climbed to 37°C (99°F), marking the warmest May day on record.
- Lamai Beach experienced its chilliest May day on May 17, 2009, reaching only 28°C (82°F).
- Nighttime temperatures dropped to 23°C (73°F) on May 29, 2013, marking the coldest May night on record.
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 Lamai Beach in May
Warm temperatures in May make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Prepare for significant rainfall with proper waterproof clothing and shoes. Expect water temperatures of around 29°C (84°F), which is ideal for taking a refreshing dip. Bring swimwear and consider packing a towel for drying off. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.
What To Do in Lamai Beach in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
-
Swimming7/10 -
Cycling7/10 -
Walking7/10 -
Camping7/10 -
Outdoor sports7/10
Lamai Beach 3-Day Forecast
More climate data for Lamai Beach
Temperature Rainfall Sunshine Humidity Water Temp
See the full Lamai 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
Need travel inspiration? Check out our bucket list articles and be inspired.
Discover Kok Kood: a hidden gem in Thailand
Warm Days, Cool Nights: 8 Destinations With the Perfect Day-Night Temperature
Prefer warm sunny days but cool evenings? Compare eight destinations with daytime temperatures of around 25–30°C, cooler nights, low rainfall and plenty of sunshine.
Where to Travel in July and August: Mexico, Thailand, Indonesia or Somewhere Else?
Compare July and August weather in Mexico, Thailand, Indonesia, Zanzibar and Sri Lanka, using historical climate data for temperature, rainfall and sunshine.
Discover Thailand: An Ultimate Guide for Yogis
Explore Thailand's best for yogis: serene retreats, spiritual growth, and adventure. Dive into yoga, meditation, and nature's tranquility for an unforgettable journey.