Weather in Swindon in September
In an average September, Swindon sees a daily high around 18°C and a low around 10°C, based on 1980–2026 of local climate records.
| Average high | 18°C |
|---|---|
| Typical high range | 15°C to 22°C |
| Average low | 10°C |
| Typical low range | 7°C to 14°C |
| Average daily precipitation | 3 mm |
September records
The most extreme September on record for each metric, across 1980–2026. For rainfall, the wettest and driest are by total September accumulation.
High
Highest
30°C
2023-09-09
Lowest
10°C
1986-09-15
Low
Highest
18°C
2023-09-07
Lowest
2°C
2018-09-25
Feels-like
Highest
35°C
2023-09-09
Lowest
-2°C
2018-09-25
Humidity
Highest
16.5 g/m³
2023-09-10
Lowest
5.9 g/m³
2003-09-23
Wind
Highest
45 km/h
1981-09-19
Lowest
6 km/h
2020-09-01
Gust
Highest
95 km/h
1981-09-19
Lowest
14 km/h
2020-09-01
Precip
Wettest
180 mm
2024
Driest
18 mm
1997
See Swindon's live weather grade →
Visiting Swindon in September? See how its comfort stacks up against where you live.
Compare Swindon with your city →