March Weather in London, United States

Last updated: June 24, 2025

In March, the average temperature in London, United States hovers around 10°C (49°F), with a minimum dipping to -10°C (14°F) and a maximum reaching 28°C (82°F). Expect precipitation of about 134 mm (5.3 in) spread over 13 days, contributing to an average humidity of 87%.

March Temperature in London

In March in London, the average temperature is 10°C (49°F). Maximum temperatures can reach 28°C (82°F), while minimums can drop as low as -10°C (14°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 10°C (49°F), with highs reaching up to 28°C (82°F) and lows dropping to around -10°C (14°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 134 mm (5.3 in) recorded over the course of 13 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 134 mm (5.3 inches) of precipitation spread over approximately 13 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

March Humidity in London

In London in March, humidity is 87%. With an average temperature of 10°C (49°F), this humidity feels like a damp chill that clings to your skin, making outdoor excursions somewhat uncomfortable and requiring layered clothing to navigate the cold, clammy air effectively.

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 is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, 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 7, which falls under the high 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	3°C (38°F)	98 mm (3.9 inches)	88%	moderate
February Weather	6°C (43°F)	179 mm (7.0 inches)	88%	high
March Weather	10°C (49°F)	134 mm (5.3 inches)	87%	high
April Weather	14°C (57°F)	134 mm (5.3 inches)	84%	very high
May Weather	20°C (67°F)	126 mm (5.0 inches)	84%	extreme
June Weather	23°C (73°F)	141 mm (5.5 inches)	83%	extreme
July Weather	25°C (78°F)	109 mm (4.3 inches)	79%	extreme
August Weather	24°C (76°F)	123 mm (4.8 inches)	66%	very high
September Weather	22°C (72°F)	107 mm (4.2 inches)	67%	very high
October Weather	16°C (61°F)	120 mm (4.7 inches)	76%	high
November Weather	8°C (46°F)	76 mm (3.0 inches)	89%	moderate
December Weather	6°C (43°F)	135 mm (5.3 inches)	88%	moderate