March Weather in Plymouth, United States

Last updated: June 24, 2025

In March, the average temperature in Plymouth, United States hovers around 12°C (53°F), with a minimum dipping to -5°C (23°F) and a maximum reaching 30°C (86°F). Expect about 64 mm (2.5 in) of precipitation spread over 8 days, contributing to an average humidity level of 80%. Enjoy the diverse weather this month brings!

March Temperature in Plymouth

In March in Plymouth, the average temperature is 12°C (53°F). Maximums can reach 30°C (86°F), while minimums can drop as low as -5°C (23°F). Be prepared for a wide range of temperatures, making it essential to pack layers for 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 12°C (53°F), with highs reaching up to 30°C (86°F) and lows dropping to around -5°C (23°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 64 mm (2.5 in) over the course of 8 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 64 mm (2.5 inches) of precipitation spread over approximately 8 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 80%. With an average temperature of 12°C (53°F), this humidity feels like a damp chill clinging to your skin, making outdoor activities less inviting and prompting the need for layered clothing to stay comfortable while traveling.

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 80%, 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	7°C (45°F)	90 mm (3.5 inches)	84%	moderate
February Weather	10°C (50°F)	95 mm (3.7 inches)	81%	high
March Weather	12°C (53°F)	64 mm (2.5 inches)	80%	very high
April Weather	17°C (62°F)	100 mm (3.9 inches)	80%	very high
May Weather	21°C (70°F)	114 mm (4.5 inches)	81%	extreme
June Weather	25°C (76°F)	149 mm (5.9 inches)	82%	very high
July Weather	27°C (80°F)	141 mm (5.5 inches)	83%	extreme
August Weather	26°C (79°F)	170 mm (6.7 inches)	82%	very high
September Weather	24°C (75°F)	125 mm (4.9 inches)	80%	very high
October Weather	19°C (67°F)	75 mm (2.9 inches)	79%	very high
November Weather	12°C (54°F)	96 mm (3.8 inches)	83%	moderate
December Weather	9°C (49°F)	108 mm (4.2 inches)	84%	moderate