September · Thailand
Best time to visit Pattaya in September Weather, crowds & prices
Weather in Pattaya in September
Average temperature 29°C, 261 mm of rain, about 18 days with 6+ hours of sunshine and 80% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
September score
6.4/10
Ranked #11 of 12 months
- Avg temp
- 29°C
- Rainfall
- 261 mm
- Humidity
- 80%
- Days with 6h+ sun
- 18
- Crowd Density
- Quiet / Uncrowded
- Average Expenses
- $ · Budget Friendly ($)
September in Pattaya scores 6.4/10 for beach and coastal travel - ranked #11 of 12. Expect around 29°C, 261 mm of rain, and roughly 18 days with 6+ hours of sunshine this month.
Pattaya mixes the Gulf's beaches and islands with Thailand's best-known nightlife.
September in Pattaya — middling scores, decent value
September averages 29°C (84°F) and humidity near 80%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
261 mm of rain puts this in monsoon territory — about 18 days with 6+ hours of sunshine across the whole month, and multi-day washouts are normal.
It scores 6.4/10 here, 11th of 12 months, against 9.8/10 in the destination's best month.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.
Figure on low-season pricing, with crowds are light for this destination.
Flexible dates? January scores 3.4 points higher here — enough to change the trip.
Frequently asked
- What is the weather like in Pattaya in September?
- In September, Pattaya averages 29°C, 261 mm of rain, and about 18 days with 6+ hours of sunshine. Its climate-comfort score is 6.4/10.
- Is September a good time to visit Pattaya?
- September earns a 6.4/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Pattaya in September?
- Expect about 261 mm of rain in September. Average humidity is 80% and there are about 18 days with 6+ hours of sunshine.
Curated in Pattaya
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Pattaya, Thailand. Live activities and tours from GetYourGuide, matched to this destination.