March Weather in Swanley, United Kingdom

Last updated: August 27, 2025

In March, the average temperature in Swanley, United Kingdom hovers around 8°C (46°F). Expect a chilly minimum of -5°C (23°F) and a pleasant maximum of 21°C (70°F). Prepare for some wet days with an average precipitation of 52 mm (2.0 in) spread over about 13 days. Don't forget your umbrella, as the average humidity lingers at a high 86%!

March Temperature in Swanley

In March in Swanley, the average temperature is 8°C (46°F). The maximum can reach 21°C (70°F), while the minimum can drop as low as -5°C (23°F). This variation in temperature makes it essential for travelers to pack layers to ensure comfort during their visit.

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

The chart illustrates March temperature patterns in Swanley, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Swanley, March typically has an average temperature of 8°C (46°F), with highs reaching up to 21°C (70°F) and lows dropping to around -5°C (23°F).

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

March Precipitation in Swanley

In Swanley in March, the total precipitation amount is 52 mm (2.0 in) over the course of 13 days.

March Precipitation Trends in Swanley

The chart displays monthly precipitation patterns in Swanley, 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 Swanley, March typically receives around 52 mm (2.0 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 Swanley

In Swanley in March humidity is 86%. With an average temperature of 8°C (46°F), this humidity feels like a damp chill enveloping you, making outdoor activities less enjoyable and requiring extra layers to stay comfortable while exploring.

March Average Humidity in Swanley

This chart illustrates the average monthly humidity levels in Swanley, 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 Swanley is approximately 86%, 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 Swanley

In Swanley in March, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Swanley for better planning.

Maximum UV Index Levels in Swanley for March

The chart shows the monthly maximum UV Index (UVI) for Swanley 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 Swanley typically reaches 4, which falls under the moderate exposure category.

Data source: Swanley 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 Swanley Compares to Other Months

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

This table compares monthly weather conditions in Swanley, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	5°C (41°F)	52 mm (2.1 inches)	91%	low
February Weather	6°C (43°F)	52 mm (2.1 inches)	89%	low
March Weather	8°C (46°F)	52 mm (2.0 inches)	86%	moderate
April Weather	10°C (49°F)	31 mm (1.2 inches)	85%	moderate
May Weather	13°C (55°F)	63 mm (2.5 inches)	82%	high
June Weather	17°C (62°F)	75 mm (3.0 inches)	81%	very high
July Weather	18°C (65°F)	62 mm (2.4 inches)	76%	very high
August Weather	18°C (64°F)	71 mm (2.8 inches)	73%	high
September Weather	15°C (60°F)	46 mm (1.8 inches)	80%	moderate
October Weather	12°C (54°F)	80 mm (3.1 inches)	89%	moderate
November Weather	8°C (47°F)	48 mm (1.9 inches)	92%	low
December Weather	6°C (44°F)	85 mm (3.4 inches)	92%	low