London

Greater London Weather in September

Average temperatures, rainfall, sunshine and the best places to visit in Greater London, the United Kingdom in September.

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London Croydon Ilford Hounslow

Planning a getaway to Greater London, the United Kingdom this September and curious about the weather you should prepare for? Discover all the vital details you need on this page, solving your puzzle:

What to Expect in Greater London in September

Greater London, the United Kingdom is a region in the United Kingdom. September in Greater London generally has pleasant temperatures, with moderate precipitation.

Temperatures

You can expect pleasant maximum daytime temperatures of around 20°C (68°F) and nighttime temperatures around 11°C (52°F) in London.

For a closer look at conditions across Greater London, the United Kingdom, refer to the map below.

Precipitation

September is a moderate rainy month with an average rainfall of around 54 mm (2.1 in) in London.

Average sunshine

Sunshine amounts are decent in most places. London gets approximately 155 hours of sunlight in September, offering a reasonable amount of both bright and cloudy periods. Curious about sunnier destinations? Our weather planner makes it easy to find places worldwide with pleasant weather.

Explore Greater London by month

Pick a month to see the average temperature, rainfall and sunshine in Greater London - and find the best time to visit. (based on London)

January9°C (48°F) February9°C (48°F) March12°C (54°F) April15°C (59°F) May18°C (64°F) June21°C (70°F) This monthJuly23°C (73°F) August23°C (73°F) September20°C (68°F) October16°C (61°F) November12°C (54°F) December9°C (48°F)
Best Time to Visit Greater London →

Best Places to Visit in Greater London in September

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Greater London.

Conditions Temperatures Precipitation
perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Greater London

What is the weather like in September for some of the most popular destinations in Greater London, the United Kingdom?

Temperature range in Greater London (September)

Precipitation variation in Greater London (September)

London

In September London generally has pleasant temperatures with maximum daytime temperatures around 20°C (68°F), minimum nighttime temperatures around 11°C (52°F) and moderate monthly rainfall. So on average the conditions are excellent that month.

« August
September
October »
August
September
October
Max temperature
23°C (73°F)
20°C (68°F)
16°C (61°F)
Min temperature
13°C (55°F)
11°C (52°F)
8°C (46°F)
Monthly sun hours
204 hours
155 hours
113 hours
Monthly rainfall
66 mm (2.6 in)
54 mm (2.1 in)
65 mm (2.6 in)
Monthly rainy days
12 days
12 days
14 days
Weather conditions
excellent
excellent
good
Climate in London →

Croydon

In September Croydon generally has pleasant temperatures with maximum daytime temperatures around 20°C (68°F), minimum nighttime temperatures around 11°C (52°F) and moderate monthly rainfall. So on average the conditions are excellent that month.

« August
September
October »
August
September
October
Max temperature
23°C (73°F)
20°C (68°F)
16°C (61°F)
Min temperature
13°C (55°F)
11°C (52°F)
8°C (46°F)
Monthly sun hours
204 hours
155 hours
113 hours
Monthly rainfall
69 mm (2.7 in)
55 mm (2.2 in)
66 mm (2.6 in)
Monthly rainy days
12 days
12 days
13 days
Weather conditions
excellent
excellent
good
Climate in Croydon →

Ilford

In September Ilford generally has pleasant temperatures with maximum daytime temperatures around 20°C (68°F), minimum nighttime temperatures around 11°C (52°F) and moderate monthly rainfall. So on average the conditions are excellent that month.

« August
September
October »
August
September
October
Max temperature
23°C (73°F)
20°C (68°F)
16°C (61°F)
Min temperature
14°C (57°F)
11°C (52°F)
8°C (46°F)
Monthly sun hours
205 hours
146 hours
112 hours
Monthly rainfall
67 mm (2.6 in)
52 mm (2 in)
61 mm (2.4 in)
Monthly rainy days
11 days
11 days
13 days
Weather conditions
excellent
excellent
good
Climate in Ilford →

Hounslow

In September Hounslow generally has pleasant temperatures with maximum daytime temperatures around 20°C (68°F), minimum nighttime temperatures around 11°C (52°F) and moderate monthly rainfall. So on average the conditions are excellent that month.

« August
September
October »
August
September
October
Max temperature
23°C (73°F)
20°C (68°F)
16°C (61°F)
Min temperature
13°C (55°F)
11°C (52°F)
8°C (46°F)
Monthly sun hours
204 hours
155 hours
113 hours
Monthly rainfall
67 mm (2.6 in)
54 mm (2.1 in)
64 mm (2.5 in)
Monthly rainy days
12 days
12 days
14 days
Weather conditions
excellent
excellent
good
Climate in Hounslow →

Harrow

In September Harrow generally has pleasant temperatures with maximum daytime temperatures around 20°C (68°F), minimum nighttime temperatures around 11°C (52°F) and moderate monthly rainfall. So on average the conditions are excellent that month.

« August
September
October »
August
September
October
Max temperature
23°C (73°F)
20°C (68°F)
16°C (61°F)
Min temperature
13°C (55°F)
11°C (52°F)
8°C (46°F)
Monthly sun hours
204 hours
155 hours
113 hours
Monthly rainfall
67 mm (2.6 in)
55 mm (2.2 in)
64 mm (2.5 in)
Monthly rainy days
12 days
12 days
14 days
Weather conditions
excellent
excellent
good
Climate in Harrow →

Is your destination not in the list? Have a look at all destinations in Greater London, in the United Kingdom.

Popular cities in September

Day & night temperatures, rainfall and average weather in Greater London in September.

City Weather Day temp Night temp Rainfall
London 20°C (68°F) 11°C (52°F) 54 mm (2.1 in)
Croydon 20°C (68°F) 11°C (52°F) 55 mm (2.2 in)
Ilford 20°C (68°F) 11°C (52°F) 52 mm (2 in)
Hounslow 20°C (68°F) 11°C (52°F) 54 mm (2.1 in)
Harrow 20°C (68°F) 11°C (52°F) 55 mm (2.2 in)
Kingston upon Thames 20°C (68°F) 11°C (52°F) 54 mm (2.1 in)

Greater London weather in September: frequently asked questions

What is the weather like in Greater London, the United Kingdom in September?

Greater London, the United Kingdom typically experiences excellent weather in September, part of the season. Daytime highs in London average around 20°C (68°F), and temperatures drop to about 11°C (52°F) at night.

What is the average temperature in Greater London, the United Kingdom in September?

Average temperatures in Greater London, the United Kingdom during September range from a nighttime low near 11°C (52°F) to a daytime high around 20°C (68°F) in London.

Does Greater London, the United Kingdom get a lot of rain in September?

September is on the drier side in Greater London, the United Kingdom. London averages only about 54 mm (2.1 in), with most days staying dry.

Is September a Good Time to Visit Greater London, the United Kingdom?

We believe that September is one of the best times to visit Greater London, the United Kingdom with overall excellent weather in London. However, the weather conditions may vary depending on your destination.

Generally speaking, June, July, August and September provide excellent weather in London. In contrast, January, February and December tend to have less favorable weather conditions.

Interested in more climate information?

We have much more information about the climate in Greater London.

Weather and climate has detailed information for every country in the world. Are you going to the United Kingdom? Get detailed historical weather averages for many cities in the United Kingdom.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

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