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What is Average Temperature?
The average high temperature and the average low temperature for that month, on a daily basis, divided by 2 equals the average temperature for that month
Temperature
16°C62°F -
What is Average High Low Temperature?
The sum of high temperatures/low temperatures divided by the number of days in that month, recorded daily
High Temperature
19°C66°F -
What is Average High Low Temperature?
The sum of high temperatures/low temperatures divided by the number of days in that month, recorded daily
Low Temperature
12°C54°F -
What is Average Day Temperature?
The average temperature recorded between sunrise and sunset
Day Temperature
15°C60°F -
What is Average Night Temperature?
The average temperature recorded between sunset and sunrise
Night Temperature
14°C59°F -
What are Average Daily Sunshine Hours?
Total sunshine hours for the month, divided by the number of days in the month. Sunshine hours are taken with a sunshine recorder, either a Campbell-Stokes recorder or an Eppley Pyreheliometer
Sunshine Hours
5 hours -
What is Average Rainfall?
The amount of mm in rain for that month divided by the number of days, and the number of days that it rains during that month on average, over a given period of years
Rainfall Days
15 days -
What is Average Rainfall?
The amount of mm in rain for that month divided by the number of days, and the number of days that it rains during that month on average, over a given period of years
Rainfall
49 mm
Sun
Mon
1
Avg
15Âș
59Âș
Tue
2
Avg
16Âș
61Âș
Wed
3
Avg
17Âș
63Âș
Thu
4
Avg
17Âș
63Âș
Fri
5
Avg
17Âș
63Âș
Sat
6
Avg
16Âș
61Âș
7
Avg
16Âș
61Âș
8
Avg
15Âș
59Âș
9
Avg
15Âș
59Âș
10
Avg
16Âș
61Âș
11
Avg
15Âș
59Âș
12
Avg
15Âș
59Âș
13
Avg
15Âș
59Âș
14
Avg
15Âș
59Âș
15
Avg
14Âș
57Âș
16
Avg
14Âș
57Âș
17
Avg
14Âș
57Âș
18
Avg
15Âș
59Âș
19
Avg
14Âș
57Âș
20
Avg
14Âș
57Âș
21
Avg
14Âș
57Âș
22
Avg
13Âș
55Âș
23
Avg
13Âș
55Âș
24
Avg
15Âș
59Âș
25
Avg
15Âș
59Âș
26
Avg
14Âș
57Âș
27
Avg
14Âș
57Âș
28
Avg
14Âș
57Âș
29
Avg
15Âș
59Âș
30
Avg
14Âș
57Âș
Forecast
Avg
Historical Daily Average
September Weather Averages
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Latest London Holiday Reviews
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Summer in london
If you are going to visit London during summer then you will have great time and fun. The weather in summer i.e June and July is awesome. Sometimes you will...
Adnan
-
I live in London
I live in London, for the past month it has been quite hot with the heatwave striking temperatures to 30 . But it's usually cold and raining and the winter...
Harry Smith
-
Holiday in London
Weather has been quite warm and sunny especially in the afternoon. A little rain and thunder early in the week but mostly at night. Pleasantly cool in mornings.
Anonymous
London Events September
Art
12
Sep
2026
20
Sep
2026
London Design Festival đŒ
London Design Festival celebrates creativity and innovation across architecture, interiors, and product design. Visitors can explore installations, exhibitions, talks, and guided tours throughout the city, including prominent design districts like Shoreditch and Southbank. Tourists can engage with contemporary design trends, meet international designers, and experience London’s vibrant artistic culture during this visually striking, immersive festival.
Sports
12
Sep
2026
12
Sep
2026
Great River Race đ
The Great River Race is a historic “Marathon of the Thames,” featuring traditional and modern rowing boats racing along London’s iconic river. Spectators line the banks to cheer participants, enjoy riverside entertainment, and witness the colorful pageantry of maritime heritage. It’s a lively, family-friendly event that showcases London’s waterfront culture and sporting tradition.
Architecture
19
Sep
2026
22
Sep
2026
Open House London đ
Open House London allows visitors to explore hundreds of normally inaccessible buildings across the city, from historic landmarks to modern architectural marvels. Guided tours, exhibitions, and talks provide insight into London’s urban landscape, architecture, and design history. Tourists gain a unique cultural perspective and a chance to see hidden gems throughout the capital.
