Thailand
Bangkok in September
In September, Bangkok averages a daytime high of 33 °C and a night-time low of 25 °C, with about 296 mm of rain over the month. Bangkok has no month that is both mild and dry by the measure used here.
- Average high
- 33 °C
- Average low
- 25 °C
- Rain in the month
- 296 mm
- Daylight on 15 Sep
- 12 h 10 min
- Comfortable month
- No
- Places to stay
- 498
When to go
How September compares with the rest of the year in Bangkok
September is tied for the 5th warmest month in Bangkok by average daytime high; across the year the highs run from 32 °C to 35 °C and the lows from 22 °C to 26 °C. By day, September is about the same as August, and October is about the same as September.
September brings 296 mm of rain, more than the monthly average of 123 mm (1472 mm a year); it is the wettest month.
On 15 September the sun is up for about 12 h 10 min, against 11 h 20 min at the shortest and 13 h at the longest point of the year (calculated from the latitude, sunrise to sunset).
| Month | High | Low | Rain | Comfortable |
|---|---|---|---|---|
| January | 32 °C | 22 °C | 11 mm | |
| February | 33 °C | 24 °C | 16 mm | |
| March | 34 °C | 25 °C | 43 mm | |
| April | 35 °C | 26 °C | 85 mm | |
| May | 35 °C | 26 °C | 173 mm | |
| June | 34 °C | 26 °C | 195 mm | |
| July | 33 °C | 26 °C | 191 mm | |
| August | 33 °C | 25 °C | 229 mm | |
| September | 33 °C | 25 °C | 296 mm | |
| October | 32 °C | 25 °C | 190 mm | |
| November | 33 °C | 24 °C | 34 mm | |
| December | 32 °C | 22 °C | 10 mm |
Comfortable means average daytime high between 18 °C and 29 °C and under 80 mm of rain in the month. Averages for 1991–2020 over the surrounding area, a grid square about 50 km across, so a coast or a nearby mountain can make the town itself warmer or cooler. Data: CRU TS v4.10, Climatic Research Unit, University of East Anglia (Open Database License).
When to go
Is September a good time to visit Bangkok?
Not by the measure used here: the average high of 33 °C is above 29 °C and about 296 mm of rain is 80 mm or more. No month in Bangkok meets it.
The measure is about weather for a city stay only; it says nothing about events, school holidays or prices.
Where to stay
Where to stay in Bangkok
This guide lists 498 places to stay in Bangkok, hotels recorded in Wikidata. By straight-line distance from the centre: under 1 km, 7; 1–3 km, 159; 3–10 km, 319; 10 km or more, 13.
Sources: climate from CRU TS v4.10 (Climatic Research Unit, University of East Anglia; Open Database License), 1991–2020 averages; day length calculated from the latitude; places to stay from each operator's own public pages and Wikidata. How this guide is made.