Verdict: Fair month
Pattaya Weather in September
September runs warm in Pattaya, with daily highs around 30°C (86°F) and nights near 26°C (79°F). It's also the wet side of the calendar: rain falls on about 25 days, so build flexibility into plans. September is workable in Pattaya if your dates are fixed — just plan around the conditions.
Average high
30°C / 86°F
Average low
26°C / 79°F
Rain days
~25
Precipitation
295 mm
What to pack for Pattaya in September
- Light, breathable clothing — linen and technical fabrics earn their keep
- High-SPF sunscreen, sunglasses, and a refillable water bottle
- Rain gear is non-negotiable — expect rain on roughly 25 days
- Quick-dry shoes — downpours are short but heavy
- Comfortable walking shoes — every guide on this site assumes you'll use them
September against the rest of the year
Warmest in Pattaya: Apr (33°C / 91°F) · Coolest: Jul (30°C / 86°F) · Wettest: Sep (~25 rain days)
31°
23°
Jan
31°
24°
Feb
32°
26°
Mar
33°
27°
Apr
32°
27°
May
31°
27°
Jun
30°
26°
Jul
30°
26°
Aug
30°
26°
Sep
30°
25°
Oct
31°
24°
Nov
30°
23°
Dec
Daily highs / lows in °C · bars show rain days per month · ERA5 climate normals (2020–2024)