Pattaya weather in September
September in Pattaya: sweltering, soaked, with clean air — a good time to visit.
#12 of 12 months in Pattaya · #473 of 604 destinations to visit in September · comfort 65/100 (tier C)
Updated June 2026 · climate normals from ERA5 reanalysis
Pattaya climate normals — September
| Daytime high | 30°C / 86°F | 🔥 sweltering |
|---|---|---|
| Nighttime low | 26°C / 79°F | |
| Feels like (high) | 36°C / 97°F | |
| Rainfall | 276 mm / 10.9 in | ⛈ soaked |
| Rainy days | 26 days | |
| Humidity | 84% | 💦 very humid |
| Dew point | 25°C / 76°F | |
| Sunshine | 7.6 h/day | |
| Daylight | 12.2 h | |
| Wind | 13 km/h / 8 mph | |
| Air quality (US AQI) | 33 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Pattaya in September — FAQ
- Is September a good time to visit Pattaya?
- September in Pattaya: sweltering, soaked, with clean air — a good time to visit. It ranks #12 of 12 months for Pattaya on SeasonMap's comfort score (65/100).
- What is the weather like in Pattaya in September?
- In September, Pattaya averages a daily high of 29.9°C and a low of 25.9°C, with about 276 mm of rain over roughly 26 rainy days.
- What is the air quality in Pattaya in September?
- Pattaya has a mean US Air Quality Index of about 33 in September.