Pattaya weather in May
May in Pattaya: sweltering, rainy, with clean air — a great time to visit.
#8 of 12 months in Pattaya · #382 of 604 destinations to visit in May · comfort 78/100 (tier B)
Updated June 2026 · climate normals from ERA5 reanalysis
Pattaya climate normals — May
| Daytime high | 32°C / 90°F | 🔥 sweltering |
|---|---|---|
| Nighttime low | 27°C / 81°F | |
| Feels like (high) | 38°C / 100°F | |
| Rainfall | 126 mm / 5 in | 🌧 rainy |
| Rainy days | 18 days | |
| Humidity | 78% | 💦 very humid |
| Dew point | 25°C / 76°F | |
| Sunshine | 10.2 h/day | |
| Daylight | 12.7 h | |
| Wind | 14 km/h / 9 mph | |
| Air quality (US AQI) | 47 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Pattaya in May — FAQ
- Is May a good time to visit Pattaya?
- May in Pattaya: sweltering, rainy, with clean air — a great time to visit. It ranks #8 of 12 months for Pattaya on SeasonMap's comfort score (78/100).
- What is the weather like in Pattaya in May?
- In May, Pattaya averages a daily high of 32.2°C and a low of 27.3°C, with about 125.8 mm of rain over roughly 18.2 rainy days.
- What is the air quality in Pattaya in May?
- Pattaya has a mean US Air Quality Index of about 47 in May.