July Weather in London, Canada

Last updated: June 18, 2025

In July, the average temperature in London, Canada is a pleasant 22°C (72°F). However, be prepared for some variability, as temperatures can dip to a cool 9°C (48°F) and soar up to a warm 34°C (93°F). Expect 97 mm (3.8 in) of precipitation spread over 13 days, contributing to an average humidity level of 79%. Whether you're enjoying the sunshine or seeking shelter from the rain, there's always something to experience!

July Temperature in London

In July in London, the average temperature is 22°C (72°F). Maximum temperatures can reach as high as 34°C (93°F), while minimums can dip down to 9°C (48°F). This variation makes it essential to pack layers for a comfortable travel experience.

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

The chart illustrates July 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, July typically has an average temperature of 22°C (72°F), with highs reaching up to 34°C (93°F) and lows dropping to around 9°C (48°F).

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

July Precipitation in London

In London in July, the precipitation amount is 97 mm (3.8 in) over the course of 13 days.

July Precipitation Trends in London

The chart displays monthly precipitation patterns in London, with values for each month alongside July’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how July’s conditions compare to those of other months. In London, July typically receives around 97 mm (3.8 inches) of precipitation spread over approximately 13 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

July Humidity in London

In London in July humidity is 79%. With an average temperature of 22°C (72°F), this humidity feels like you are enveloped in a warm, heavy blanket, making it feel considerably hotter and adding a layer of stickiness to your skin as you navigate through the streets.

July Average Humidity in London

This chart illustrates the average monthly humidity levels in London, with July’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In July, average humidity in London is approximately 79%, offering insight into how humid the weather typically is during this month.

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

July UV Index in London

In London in July, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in London.

Maximum UV Index Levels in London for July

The chart shows the monthly maximum UV Index (UVI) for London in July, 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 July, the maximum UV index in London typically reaches 10, which falls under the very high exposure category.

Data source: London July 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 July 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 July’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 July’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