March Weather in Plymouth, United States

Last updated: June 24, 2025

In March, the average temperature in Plymouth, United States hovers around 10°C (50°F). While you might experience a chill with minimums dipping to -3°C (27°F), be prepared for warm spells that can soar to 26°C (78°F). Expect about 210 mm (8.3 in) of precipitation spread over 15 days, contributing to a high average humidity of 83%.

March Temperature in Plymouth

In March in Plymouth, the average temperature is 10°C (50°F). Maximum temperatures can reach 26°C (78°F), while the minimum can drop as low as -3°C (27°F). Be prepared for a wide range of temperatures during your travels!

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

The chart illustrates March temperature patterns in Plymouth, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Plymouth, March typically has an average temperature of 10°C (50°F), with highs reaching up to 26°C (78°F) and lows dropping to around -3°C (27°F).

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

March Precipitation in Plymouth

In Plymouth in March, the precipitation amount is 210 mm (8.3 in) over a span of 15 days.

March Precipitation Trends in Plymouth

The chart displays monthly precipitation patterns in Plymouth, 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 Plymouth, March typically receives around 210 mm (8.3 inches) of precipitation spread over approximately 15 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 Plymouth

In Plymouth in March, humidity is 83%. With an average temperature of 10°C (50°F), this humidity feels like a damp chill that clings to your skin, making outdoor exploration less comfortable and prompting visitors to seek cozy indoor activities.

March Average Humidity in Plymouth

This chart illustrates the average monthly humidity levels in Plymouth, 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 Plymouth is approximately 83%, 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 Plymouth

In Plymouth in March, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Plymouth.

Maximum UV Index Levels in Plymouth for March

The chart shows the monthly maximum UV Index (UVI) for Plymouth 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 Plymouth typically reaches 8, which falls under the very high exposure category.

Data source: Plymouth 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 Plymouth Compares to Other Months

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

This table compares monthly weather conditions in Plymouth, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	8°C (47°F)	191 mm (7.5 inches)	84%	moderate
February Weather	8°C (48°F)	190 mm (7.5 inches)	84%	moderate
March Weather	10°C (50°F)	210 mm (8.3 inches)	83%	very high
April Weather	13°C (57°F)	96 mm (3.8 inches)	81%	very high
May Weather	17°C (62°F)	57 mm (2.2 inches)	74%	very high
June Weather	22°C (72°F)	6 mm (0.2 inches)	64%	extreme
July Weather	25°C (77°F)	0 mm (0.0 inches)	44%	extreme
August Weather	24°C (76°F)	0 mm (0.0 inches)	36%	very high
September Weather	21°C (71°F)	10 mm (0.4 inches)	44%	very high
October Weather	16°C (61°F)	49 mm (1.9 inches)	65%	high
November Weather	11°C (52°F)	103 mm (4.1 inches)	84%	moderate
December Weather	8°C (46°F)	156 mm (6.1 inches)	83%	moderate