March Weather in London, Canada

Last updated: June 18, 2025

In March, the average temperature in London, Canada hovers around 1°C (34°F). Temperatures can be quite varied, with a minimum of -19°C (-2°F) and a maximum of 20°C (68°F). Additionally, expect 78 mm (3.1 in) of precipitation spread over 11 days, contributing to an average humidity of 87%.

March Temperature in London

In March in London, the average temperature is 1°C (34°F). Maximums can reach 20°C (68°F) and minimums can be as low as -19°C (-2°F). Travelers should be prepared for a wide range of temperatures and pack accordingly.

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

The chart illustrates March 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, March typically has an average temperature of 1°C (34°F), with highs reaching up to 20°C (68°F) and lows dropping to around -19°C (-2°F).

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

March Precipitation in London

In London in March, the precipitation amount is 78 mm (3.1 in) over the course of 11 days.

March Precipitation Trends in London

The chart displays monthly precipitation patterns in London, with values for each month alongside March’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how March’s conditions compare to those of other months. In London, March typically receives around 78 mm (3.1 inches) of precipitation spread over approximately 11 days.

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

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Millimeters (mm) Inches (in)

March Humidity in London

In London in March humidity is 87%. With an average temperature of 1°C (34°F), this humidity feels like a chilling blanket enveloping you, making every step outside feel heavy and damp, and leaving you longing for warmth and comfort while traveling.

March Average Humidity in London

This chart illustrates the average monthly humidity levels in London, with March’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In March, average humidity in London is approximately 87%, offering insight into how humid the weather typically is during this month.

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

March UV Index in London

In London in March, 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 March

The chart shows the monthly maximum UV Index (UVI) for London in March, 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 March, the maximum UV index in London typically reaches 5, which falls under the moderate exposure category.

Data source: London March 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 March 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 March’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 March’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