Weather in London - September 2020
London in September experiencing temperatures as low as 52°F and a high of 66°F degrees. It’s definitely on the milder side during September, but it’s a good idea to bring an extra layer just in case.
You can expect rain for roughly half of the month of September in London. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Our weather forecast can give you a great sense of what to expect of the weather in London in September. If you’re planning to visit London in the near future, we highly recommend that you review the weather forecast specifically for London before you arrive. Our weather forecasts update every 3 hours and are more accurate when checked closer to the date of your arrival.