United Kingdom weather in September
United Kingdom in September averages 16°C (60°F), 51 mm of rain and 5.1 hours of sun a day.
Of the twelve months in United Kingdom, September is the fourth warmest, the sixth wettest and the sixth sunniest.
- Average temp
- 16°C (60°F)
12–20°C · 53–68°F
- Rainfall
- 51 mm
Showers likely
- Sunshine
- 5.1 h
hours per day
What is United Kingdom like in September?
Daytime
Days are mild.
Rain
Some rain is likely; pack for showers.
Evening
Evenings are cooler. A layer helps after sunset.
What should I pack for United Kingdom in September?
A light rain jacket
About 51 mm falls this month — showers rather than washouts.
A warm mid-layer
Nights drop to around 12°C (53°F).
September compared with August and October
September in United Kingdom is 2.8°C cooler than August and about as wet as it, which averages 19°C (65°F).
September in United Kingdom is 3.5°C warmer than October and 14 mm drier than it, which averages 12°C (54°F).
Daylight in United Kingdom in September
On 15 September the sun is up for 12 hours 38 minutes in United Kingdom, rising about 06:36 and setting about 19:14 local time.
September ends 1 hour 53 minutes shorter than it begins, so the last week of the month is a different length of day from the first.
That is 3 hours 59 minutes short of June, the longest-lit month here.
Travel guides for United Kingdom
What to read before you book.
United Kingdom weather by month
TemperatureRainfall
How September compares with the rest of the year
September is highlighted. Every other month links to its own page.
| Month | Average | Rainfall |
|---|---|---|
| January | 6°C / 42°F | 59 mm |
| February | 6°C / 43°F | 45 mm |
| March | 8°C / 46°F | 38 mm |
| April | 10°C / 51°F | 43 mm |
| May | 14°C / 56°F | 46 mm |
| June | 17°C / 62°F | 47 mm |
| July | 19°C / 66°F | 46 mm |
| August | 19°C / 65°F | 53 mm |
| September | 16°C / 60°F | 51 mm |
| October | 12°C / 54°F | 64 mm |
| November | 8°C / 47°F | 67 mm |
| December | 6°C / 43°F | 57 mm |
Similar weather in September
Other destinations whose September averages sit close to this one.
Check another month
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FAQs about United Kingdom in September
September climate averages for United Kingdom, 1991–2020.
United Kingdom averages 16°C (60°F) in September, ranging from about 12°C (53°F) at night to 20°C (68°F) in the afternoon. That is a 1991–2020 average, so an individual week can run either side of it.
Some. About 51 mm falls across September, enough to need a light jacket but not enough to reshape a trip.
Yes. September averages 16°C (60°F) against 12°C (54°F) in October — 3.5°C warmer.
September is 2.8°C cooler than August, and about as wet.
Yes. September falls inside the most comfortable stretch of the year here, May to October, on temperature and rainfall together.
About 5.1 hours of sun a day on the 1991–2020 average.
This page does not show today's weather. It is a 1991–2020 climate normal from Meteostat — a long-run average of what September is usually like, which is what you want when booking months ahead. For today or the coming week, check a live forecast.
About 12 hours 38 minutes of daylight in mid-September, against 16 hours 37 minutes in June and 7 hours 52 minutes in December.
On 15 September, sunrise is about 06:36 and sunset about 19:14 local time. Both shift across the month — the month ends 1 hour 53 minutes shorter than it starts.
