March Weather in Wales, United States

Last updated: June 24, 2025

In March, the average temperature in Wales, United States hovers around 3°C (38°F), experiencing a wide range with a minimum of -17°C (1°F) and a maximum of 22°C (73°F). You can expect 87 mm (3.4 in) of precipitation over 9 days, contributing to an average humidity of 82%. Stay prepared for various weather conditions this season!

March Temperature in Wales

In March in Wales, the average temperature is 3°C (38°F), with maximums reaching 22°C (73°F) and minimums dropping as low as -17°C (1°F). Travelers should be prepared for a wide range of temperatures during this month.

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

The chart illustrates March temperature patterns in Wales, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Wales, March typically has an average temperature of 3°C (38°F), with highs reaching up to 22°C (73°F) and lows dropping to around -17°C (1°F).

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

March Precipitation in Wales

In Wales in March, the precipitation amount is 87 mm (3.4 in), occurring over a span of 9 days.

March Precipitation Trends in Wales

The chart displays monthly precipitation patterns in Wales, 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 Wales, March typically receives around 87 mm (3.4 inches) of precipitation spread over approximately 9 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 Wales

In Wales in March humidity is 82%. With an average temperature of 3°C (38°F), this humidity feels like a chilly blanket wrapped around you, making outdoor adventures quite uncomfortable and requiring extra layers to stay warm while exploring.

March Average Humidity in Wales

This chart illustrates the average monthly humidity levels in Wales, 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 Wales is approximately 82%, 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 Wales

In Wales in March, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Wales, you can refer to this Hourly UV Index in Wales.

Maximum UV Index Levels in Wales for March

The chart shows the monthly maximum UV Index (UVI) for Wales 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 Wales typically reaches 6, which falls under the high exposure category.

Data source: Wales 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 Wales Compares to Other Months

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

This table compares monthly weather conditions in Wales, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-1°C (30°F)	69 mm (2.7 inches)	84%	moderate
February Weather	0°C (32°F)	88 mm (3.5 inches)	84%	moderate
March Weather	3°C (38°F)	87 mm (3.4 inches)	82%	high
April Weather	9°C (48°F)	125 mm (4.9 inches)	79%	very high
May Weather	15°C (59°F)	107 mm (4.2 inches)	75%	very high
June Weather	20°C (69°F)	85 mm (3.3 inches)	78%	very high
July Weather	23°C (74°F)	149 mm (5.9 inches)	76%	very high
August Weather	23°C (73°F)	95 mm (3.7 inches)	76%	very high
September Weather	19°C (66°F)	97 mm (3.8 inches)	75%	very high
October Weather	13°C (55°F)	138 mm (5.4 inches)	75%	high
November Weather	5°C (42°F)	96 mm (3.8 inches)	80%	moderate
December Weather	1°C (33°F)	124 mm (4.9 inches)	80%	low