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During May, Nai Harn Beach experiences very high daytime temperatures of 30°C (86°F) and cooler nights around 27°C (81°F). May sits within the rainy season, so expect regular and often heavy rainfall.
May in Nai Harn Beach has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.
Pick a month to see the average temperature, rainfall and sunshine in Nai Harn Beach - and find the best time to visit.
50-year average (1976-2025)
Based on our historical records, temperatures in Nai Harn Beach typically stay consistent throughout May, with daily highs averaging around 30°C (86°F). Nights are warm, with lows around 25°C (77°F).
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Browse day-by-day weather records for Nai Harn Beach spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Our historical data for Nai Harn Beach spans 1976 to 2026, revealing these weather extremes.
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 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).
Warm but pleasant conditions in Nai Harn Beach 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. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Temperature Rainfall Sunshine Humidity
See the full Nai Harn Beach climate overview or explore weather in Thailand.
Where to go in May - average daytime high across popular destinations.
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