London weather in September (Ontario, Canada)

Curious about the climate in London this September? Wondering about the weather this month? Our guide has all the details you need.

Temperatures

For September, the weather in London is generally perfect, featuring high temperatures and moderate rainfall. Expect daytime highs to reach approximately 23°C, with nighttime lows dipping to around 11°C.

Precipitation

London in September usually receives moderate rainfall, averaging around 92 mm for the month. Typically around 11 days days of rainfall are expected.

If you're a fan of comfortable temperatures and drier conditions, September is a great time to visit. August and September generally stand out with the best circumstances. While January, February, March, April, November and December tend to showcase less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized London climate page with graphs.

 

London, monthly averages in September

Min Temperature 11°C  

Max Temperature 23°C  

Chance of Rain 37%  

Precipitation 92 mm  

Rainy days 11 days  

Where to go in Canada in September

Find out more about the weather in Canada and which places have the best travel conditions in this month.

Weather conditions Weather

Temperatures

Precipitation

Map not visible? Whoops sorry! Please refresh the page.

Legend perfect weather pleasant tolerable unpleasant poor

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

So, what should you wear in this month?

For visitors traveling to London, we recommend wearing layers. So maybe a skirt, t-shirt, shorts for during the day and jeans and a warm jacket for some days and evenings. Bring a rain jacket in case it rains during your stay. Plan on layering your clothes.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Cycling

9/10

Walking

9/10

Camping

8/10

Outdoor sports

9/10

Interested in more climate information?

This site provides you with all the information you need about the climate in London.

Our site offers climate and forecast data for every country in the world. Are you going to Canada? On this website you can find historical weather averages for many cities in Canada. 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.