Bangkok, Thailand

Bangkok in September

Thailand Updated 2026-07-01

Around twenty-one wet days makes September the deepest low season, which is exactly why the Grand Palace is almost bearable.

Is September a good time to visit Bangkok?

September is one of the better months to visit Bangkok. Crowds sit around 44/100, with typical highs near 33°C.

September is the quietest month of the year in Bangkok.

What’s on in September

  • Wettest month of the year — low-lying roads flood after heavy storms

Best days in September

Weekdays are almost always calmer than weekends.

Sun
Mon
Tue
Wed
Thu
Fri
Sat

Tue is normally the calmest day of the week.

Best hours in September

The daily rhythm, hour by hour.

Calmest 9AM
12AM6AM12PM6PM11PM

The 9:00 AM window is usually the calmest of the day.

Weather in September

Typical highs, lows and wet days.

J 33° 23°
F 33° 24°
M 35° 26°
A 36° 27°
M 34° 26°
J 34° 26°
J 33° 26°
A 33° 26°
S 33° 25°
O 32° 25°
N 32° 24°
D 32° 22°
Average high Average low Wet days

How September compares

Every month in Bangkok, ranked by how calm it is.

Book things to do

Tours and tickets in Bangkok, from our booking partner.

Affiliate links: if you book through them we may earn a commission, at no extra cost to you. It never changes a crowd score or the order of our recommendations.

Frequently asked questions

Is September a good month to visit Bangkok?

September is one of the better months to visit Bangkok. Crowds sit around 44/100, with typical highs near 33°C.

How crowded is Bangkok in September?

Bangkok sits at roughly 44/100 in September on our crowd scale, which is 22 points below the yearly average. The quietest month is September.

What is the weather like in Bangkok in September?

Expect highs around 33°C and lows near 25°C in September, with about 21 wet days across the month.

Other months in Bangkok