Ko Pha-ngan Weather in May
During May, Ko Pha-ngan experiences very high daytime temperatures of 31°C (88°F) and cooler nights around 28°C (82°F). Expect quite a bit of rainfall. Around 160 mm (6.3 in) is typical.
Rainfall in Ko Pha-ngan in May
Historically, approximately 17 days this month are expected to have rain, averaging 160 mm (6.3 in). Expect frequent rainfall this month, and not just light drizzle. When it rains, it tends to come down hard.
Temperature in Ko Pha-ngan in May
Daytime temperatures in Ko Pha-ngan reach 31°C (88°F) in May, dropping to 28°C (82°F) at night. The hottest part of the day is usually in the afternoon, so lighter clothing can help you stay comfortable. At 28°C (82°F) overnight, the heat doesn't let up much after dark. If you're staying somewhere without air conditioning, a cold shower before bed and keeping the air moving can help.
Sunshine in Ko Pha-ngan in May
The city usually sees around 195 hours of sunlight, indicating many sunny days , a great month for sightseeing.If you prefer enjoying temperate temperatures and rain-free days, January and February typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
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 Ko Pha-ngan's climate page.
Ko Pha-ngan Temperature in May
Min Temperature
28°C (82°F)
Max Temperature
31°C (88°F)
Chance of Rain
56%
Precipitation
160 mm (6.3 in)
Rainy days
17 days
Humidity
80%
Sunshine
195 hours
Percentage Sunshine
Daily Historical Temperatures
49-year average (1976-2025)
Based on our historical records, temperatures in Ko Pha-ngan 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 for Ko Pha-ngan in May
Browse day-by-day weather records for Ko Pha-ngan spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Ko Pha-ngan historical weather extremes in May
According to our 44 years of weather records for Ko Pha-ngan, the following extremes were recorded between 1982 and 2026.
- The warmest day in May was on May 11, 1983, with a maximum of 37°C (99°F).
- On May 17, 2009, Ko Pha-ngan saw its coldest May day with temperatures maxing out at 28°C (82°F).
- The lowest overnight temperature recorded in May was 23°C (73°F) (May 22, 2006).
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
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tolerable
unpleasant
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What to Wear in Ko Pha-ngan 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. Heavy rain is guaranteed, please bring a good poncho and waterproof everything! You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in Ko Pha-ngan 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 Ko Pha-ngan's climate page.
Temperature Rainfall Sunshine Humidity
See the full Ko Pha-ngan climate overview or explore weather in Thailand.
