October Weather in London, Canada

Last updated: June 18, 2025

In October, the average temperature in London, Canada hovers around 11°C (53°F). Expect a wide range, with minimums dipping as low as -2°C (29°F) and maximums soaring to 28°C (83°F). The region experiences 124 mm (4.9 in) of precipitation over 15 days, contributing to an average humidity level of 84%.

October Temperature in London

In October in London, the average temperature is 11°C (53°F). The maximum can reach 28°C (83°F), while the minimum can drop as low as -2°C (29°F). Be prepared for a range of weather conditions when traveling during this time.

October Weather in London: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in London, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In London, October typically has an average temperature of 11°C (53°F), with highs reaching up to 28°C (83°F) and lows dropping to around -2°C (29°F).

Data source: Temperature data for London generated using information from the Copernicus Climate Change Service.

October Precipitation in London

In London in October, the total precipitation amount is 124 mm (4.9 in) over a period of 15 days.

October Precipitation Trends in London

The chart displays monthly precipitation patterns in London, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In London, October typically receives around 124 mm (4.9 inches) of precipitation spread over approximately 15 days.

Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

October Humidity in London

In London in October, humidity is 84%. With an average temperature of 11°C (53°F), this humidity feels like a damp chill that seeps into your bones, making outdoor exploration a bit uncomfortable and requiring extra layers to stay warm while traveling.

October Average Humidity in London

This chart illustrates the average monthly humidity levels in London, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in London is approximately 84%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in London

In London in October, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in London.

Maximum UV Index Levels in London for October

The chart shows the monthly maximum UV Index (UVI) for London in October, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In October, the maximum UV index in London typically reaches 5, which falls under the moderate exposure category.

Data source: London October UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How October Weather in London Compares to Other Months

Weather in London varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in London, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in London, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-4°C (25°F)	74 mm (2.9 inches)	90%	low
February Weather	-3°C (26°F)	78 mm (3.1 inches)	90%	moderate
March Weather	1°C (34°F)	78 mm (3.1 inches)	87%	moderate
April Weather	7°C (44°F)	105 mm (4.1 inches)	87%	very high
May Weather	14°C (57°F)	104 mm (4.1 inches)	82%	very high
June Weather	19°C (67°F)	105 mm (4.1 inches)	81%	very high
July Weather	22°C (72°F)	97 mm (3.8 inches)	79%	very high
August Weather	21°C (70°F)	108 mm (4.2 inches)	80%	very high
September Weather	17°C (64°F)	86 mm (3.4 inches)	81%	very high
October Weather	11°C (53°F)	124 mm (4.9 inches)	84%	moderate
November Weather	3°C (38°F)	91 mm (3.6 inches)	88%	moderate
December Weather	0°C (31°F)	72 mm (2.8 inches)	87%	low