United Kingdom in september: average Weather, Temperature and Climate, Where to go?
Weather in United Kingdom in september 2025
Below, check out the weather forecast for the month of september for most popular cities in United Kingdom. These forecasts are statistics for the month of september from weather reports for many years. The percentage indicates the probability of having the weather indicated.
Average weather in september in England
good weather
Weather at 6am
56°F
Fog
25% of time
23%
22%
21%
Weather at 12pm
68°F
Clear/Sunny
28% of time
28%
26%
14%
Weather at 6pm
63°F
Clear/Sunny
30% of time
27%
21%
20%
Weather at 3am
58°F
26%
25%
23%
15%
Where to go in United Kingdom in september?
Where to go in United Kingdom in september: destination map
perfect weather
good
tolerable
bad
very bad
Where to go in each region in september?
| England (London, Jersey, Manchester...) | 58°F to 68°F | 1 à 9 days | good weather |
| North Ireland (Belfast, Derry (Londonderry), Armagh...) | 59°F to 61°F | 1 à 9 days | tolerable weather* |
| Scotland (Edinburgh, Glasgow, Inverness...) | 52°F to 61°F | 2 à 14 days | tolerable weather* |
| Wales (Cardiff, Pembrokeshire, Swansea...) | 58°F to 65°F | 3 à 9 days | good weather* |
Where should you go in United Kingdom in september when it comes to the weather?
Remember:
The climate in United Kingdom in september ranges from good to tolerable depending on the region and city.
It is not perfect, however, the weather in United Kingdom that month is pretty good in England and Wales. I allows to savor tour in these areas. And even why not take a little time to lazing in the sun!
If you do not go lazing in the sun, but, for example for cultural tours or hiking, the cities of North Ireland and Scotland have a quite correct weather for that in september.
Climate in United Kingdom in september
Climate in England in september
In the month of september, the mean temperature in England is 63°F (maximum temperature is 68°F and minimum temperature is 56°F). The climate is quite comfortable in this location in september. With about 1.9in over 3 days, the rain will not be a problem throughout your vacations.
| September | |||
| Average temperature | 63°F | ||
| Highest temperature | 68°F | ||
| Lowest temperature | 56°F | ||
| Sea temperature | 64°F | ||
| Rainfall | 1.9in | ||
| Number of days with rainfall | 3 day(s) (9%) | ||
| Humidity | 88% | ||
| Daily sunshine hours | 11 | ||
| Cloud cover | 47% | ||
| Length of day | 12:38 | ||
| Our opinion at whereandwhen.net | good |
Climate in Scotland in september
In the month of september, the mean temperature in Scotland is 56°F (maximum temperature is 61°F and minimum temperature is 50°F). The climate is rather cold in this city in the month of september, but it is liveable by dressing cosy. With 3in over 5 days, rainfall is infrequent during your trip.
| September | |||
| Average temperature | 56°F | ||
| Highest temperature | 61°F | ||
| Lowest temperature | 50°F | ||
| Sea temperature | 58°F | ||
| Rainfall | 3in | ||
| Number of days with rainfall | 5 day(s) (16%) | ||
| Humidity | 93% | ||
| Daily sunshine hours | 11 | ||
| Cloud cover | 56% | ||
| Length of day | 12:45 | ||
| Our opinion at whereandwhen.net | tolerable |
Climate in Northern Ireland in september
In the month of september, maximum temperature is 61°F and minimum temperature is 52°F (for an average temperature of 58°F). The climate is relatively fresh there in the month of september, but it is endurable when dressing cosy. With barely 3.9in over 6 days, rain may be scarce for your vacations.
| September | |||
| Average temperature | 58°F | ||
| Highest temperature | 61°F | ||
| Lowest temperature | 52°F | ||
| Sea temperature | 58°F | ||
| Rainfall | 3.9in | ||
| Number of days with rainfall | 6 day(s) (20%) | ||
| Humidity | 93% | ||
| Daily sunshine hours | 10 | ||
| Cloud cover | 57% | ||
| Length of day | 12:43 | ||
| Our opinion at whereandwhen.net | tolerable |
Climate in Wales in september
In the month of september, the mean temperature in Wales is 59°F (maximum temperature is 65°F and minimum temperature is 54°F). The climate is fairly cool in that area in september, but it is endurable when dressing warm. With just 1.8in over 3 days, it rains very little throughout your trip.
| September | |||
| Average temperature | 59°F | ||
| Highest temperature | 65°F | ||
| Lowest temperature | 54°F | ||
| Sea temperature | 62°F | ||
| Rainfall | 1.8in | ||
| Number of days with rainfall | 3 day(s) (9%) | ||
| Humidity | 90% | ||
| Daily sunshine hours | 11 | ||
| Cloud cover | 48% | ||
| Length of day | 12:39 | ||
| Our opinion at whereandwhen.net | good |
All cities in United Kingdom in september
| England in september | good weather |
| Scotland in september | tolerable weather |
| North Ireland in september | tolerable weather |
| Wales in september | good weather |
Weather data for United Kingdom in september:
Weather data for United Kingdom in september is derived from an average of the weather forecast since 2009 in United Kingdom. There is a margin of error and these forecasts are to be considered as general information only. The weather in United Kingdom can vary slightly from year to year, but these predictions should limit surprises. So you can pack your bags and check when is the best time to go to United Kingdom.