Monthly climate guide
Bath weather in September
September in Bath is typically mild, with average daytime highs around 19°C (66°F) and night-time lows near 10°C (50°F). The month usually brings about 58 mm of rain (some rain) and is often cloudy. Daytime highs are 2°C cooler than August and 4°C warmer than October.
What stands out in September
- Bath is usually about 2°C warmer than Swansea, 110 km away, in September.
- Temperatures are falling — expect highs around 4°C lower by October.
- Seasonally, September counts as early autumn in Bath.
Avg high
19°C
66°F
Avg low
10°C
50°F
Rainfall
58 mm
some rain
Humidity
83%
relative
Sky
69%
cloud · often cloudy
Bath weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 7°C / 45°F | 2°C / 36°F | 80 mm | 94% | 80% |
| February | 8°C / 46°F | 2°C / 36°F | 64 mm | 92% | 79% |
| March | 10°C / 50°F | 3°C / 37°F | 60 mm | 88% | 74% |
| April | 13°C / 56°F | 4°C / 40°F | 50 mm | 84% | 69% |
| May | 16°C / 61°F | 7°C / 45°F | 56 mm | 81% | 68% |
| June | 19°C / 66°F | 10°C / 51°F | 72 mm | 81% | 71% |
| July | 22°C / 71°F | 12°C / 54°F | 60 mm | 77% | 66% |
| August | 21°C / 70°F | 12°C / 54°F | 81 mm | 80% | 74% |
| September | 19°C / 66°F | 10°C / 50°F | 58 mm | 83% | 69% |
| October | 15°C / 59°F | 8°C / 46°F | 84 mm | 89% | 76% |
| November | 10°C / 51°F | 5°C / 41°F | 90 mm | 93% | 80% |
| December | 9°C / 48°F | 4°C / 39°F | 102 mm | 94% | 83% |
What to pack for September
- A warm sweater or fleece for layering
- A mid-weight jacket
- A small travel umbrella, just in case
Is September a good time to visit Bath?
Compare the months in the chart above to find your ideal window.
Best time to visit Bath →Other United Kingdom cities in September
Cite or embed this data
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Bath weather in September. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/uk/bath/september
<a href="https://weathercompare.eu/weather/uk/bath/september">Bath weather in September</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/uk/bath" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Bath weather in September"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/uk/bath/september">Bath weather in September</a> – WeatherCompare</p>
Bath in September: quick answers
Is September a good time to visit Bath?
Yes. September is one of the best months for Bath, with highs around 19°C and about 58 mm of rain.
How warm is Bath in September?
Average highs are about 19°C (66°F) and average lows about 10°C (50°F), based on 10 years of daily data.
Does it rain a lot in Bath in September?
Bath typically gets around 58 mm of rain in September — some rain.
Figures are long-term averages for the area around Bath (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.