Bangkok weather in May
May in Bangkok: sweltering, rainy — a fair time to visit.
#9 of 12 months in Bangkok · #535 of 604 destinations to visit in May · comfort 59/100 (tier D)
Updated June 2026 · climate normals from ERA5 reanalysis
Bangkok climate normals — May
| Daytime high | 34°C / 93°F | 🔥 sweltering |
|---|---|---|
| Nighttime low | 27°C / 80°F | |
| Feels like (high) | 40°C / 104°F | |
| Rainfall | 113 mm / 4.4 in | 🌧 rainy |
| Rainy days | 16 days | |
| Humidity | 74% | 💧 humid |
| Dew point | 24°C / 75°F | |
| Sunshine | 10.3 h/day | |
| Daylight | 12.8 h | |
| Wind | 14 km/h / 9 mph | |
| Air quality (US AQI) | 98 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Bangkok in May — FAQ
- Is May a good time to visit Bangkok?
- May in Bangkok: sweltering, rainy — a fair time to visit. It ranks #9 of 12 months for Bangkok on SeasonMap's comfort score (59/100).
- What is the weather like in Bangkok in May?
- In May, Bangkok averages a daily high of 34°C and a low of 26.9°C, with about 112.7 mm of rain over roughly 15.6 rainy days.
- What is the air quality in Bangkok in May?
- Bangkok has a mean US Air Quality Index of about 98 in May.