Khao Lak Weather in May
May in Khao Lak typically sees daytime highs of 31°C (88°F) and nighttime lows of 26°C (79°F). May falls within the rainy season, so heavy rainfall is to be expected.
Rainfall in Khao Lak in May
As part of the rainy season, Khao Lak sees around 22 days of rain in May, with an average of 313 mm (12 in). The rainy season here brings regular, substantial showers. It's worth being prepared for rain on most days you're out.
Temperature in Khao Lak in May
Expect highs of 31°C (88°F) in Khao Lak in May, with nights dropping to around 26°C (79°F). If you're spending a lot of time outdoors, it helps to plan around the warmer part of the day. With lows of 26°C (79°F), it stays warm throughout the night. A cold shower before going to sleep is one of the easiest ways to cool down before bed.
Sunshine in Khao Lak in May
The area experiences limited sunny days, amounting to roughly 0 hours of sunshine. This makes it perfect for those who lean towards cooler, cloudier settings rather than intense sunlit days.May in Khao Lak can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Thailand, check out our Khao Lak's climate page.
Khao Lak Temperature in May
Min Temperature
26°C (79°F)
Max Temperature
31°C (88°F)
Chance of Rain
75%
Precipitation
313 mm (12 in)
Rainy days
22 days
Sunshine
0 hours *
Percentage Sunshine
*
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Khao Lak typically stay consistent throughout May, with daily highs averaging around 31°C (88°F). Nights are warm, with lows around 25°C (77°F).
Average temperatures in May
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in May
Historical weather for Khao Lak in May
Browse day-by-day weather records for Khao Lak spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Khao Lak historical weather extremes in May
Our historical data for Khao Lak spans 1989 to 2026, revealing these weather extremes.
- The hottest May day on record in Khao Lak reached 40°C (104°F) (May 11, 1998).
- The coldest May day was on May 19, 1993, with a maximum of 26°C (79°F).
- Nighttime temperatures dropped to 20°C (68°F) on May 1, 1994, 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 →
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unpleasant
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What to Wear in Khao Lak in May
Warm but pleasant conditions in Khao Lak in May. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. It's going to pour! Pack a good poncho and prepare for very wet conditions. Sunglasses aren't essential this month, though you might want them for the occasional bright moment.What To Do in Khao Lak in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Thailand, check out our Khao Lak's climate page.
See the full Khao Lak climate overview or explore weather in Thailand.
