Nai Harn Beach Weather in May
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.
Rainfall in Nai Harn Beach in May
Nai Harn Beach is in the rainy season in May, with rain on around 21 days and an average of 232 mm (9.1 in). With rain on many days and solid totals, showers are frequent and often moderately heavy. Waterproof gear is a sensible idea.
Temperature in Nai Harn Beach in May
May in Nai Harn Beach brings very high temperatures, with highs of 30°C (86°F) and nights around 27°C (81°F). For most visitors, the main thing to prepare for is the heat during the day. With overnight lows of 27°C (81°F), nights stay very warm. Air conditioning makes a real difference if you're sensitive to heat. A cold shower before bed can also help you get to sleep more comfortably.
Sunshine in Nai Harn Beach in May
The area enjoys a balanced 151 hours of sunlight, ensuring it's neither too rainy nor too sunny.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.
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 Nai Harn Beach's climate page.
Nai Harn Beach Temperature in May
Min Temperature
27°C (81°F)
Max Temperature
30°C (86°F)
Chance of Rain
69%
Precipitation
232 mm (9.1 in)
Rainy days
21 days
Humidity
79% *
Sunshine
151 hours *
Percentage Sunshine
*
Daily Historical Temperatures
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).
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 Nai Harn Beach in May
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.
Nai Harn Beach historical weather extremes in May
Our historical data for Nai Harn Beach spans 1976 to 2026, revealing these weather extremes.
- On May 11, 1998, temperatures climbed to 40°C (104°F), marking the warmest May day on record.
- The coldest May day was on May 3, 1976, with a maximum of 26°C (79°F).
- The coldest night in May in Nai Harn Beach was on May 1, 1994, with a minimum of 20°C (68°F).
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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What to Wear in Nai Harn Beach in May
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.What To Do in Nai Harn Beach 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 Nai Harn Beach's climate page.
Temperature Rainfall Sunshine Humidity
See the full Nai Harn Beach climate overview or explore weather in Thailand.
