nomadseason

March Weather in Plymouth, United States

Last updated: June 24, 2025

In March, the average temperature in Plymouth, United States hovers around 3°C (38°F), with possibilities of dipping as low as -14°C (7°F) on the chilly side and peaking at 24°C (76°F) on warmer days. Expect 73 mm (2.9 in) of precipitation spread over about 10 days, alongside an average humidity level of 85%, making for a typically damp and crisp atmosphere.

March Temperature in Plymouth

In March in Plymouth, the average temperature is 3°C (38°F). The maximum can reach 24°C (76°F), while the minimum can drop as low as -14°C (7°F). Travelers should be prepared for a wide range of temperatures, making layered clothing essential for comfort.

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 3°C (38°F), with highs reaching up to 24°C (76°F) and lows dropping to around -14°C (7°F).
JanFebMarAprMayJunJulAugSepOctNovDec272837476070757366543933
Data source: Temperature data for Plymouth generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

March Precipitation in Plymouth

In Plymouth in March, the precipitation amount is 73 mm (2.9 in) over the course of 10 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 73 mm (2.9 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec6466738711785927462987754
Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

March Humidity in Plymouth

In Plymouth in March, humidity is 85%. With an average temperature of 3°C (38°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities uncomfortable and travel less enjoyable as you contend with the heavy, cold air surrounding you.

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 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%87%85%86%80%80%80%81%80%84%90%86%
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 reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check 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 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24599101097542
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.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (27°F)64 mm (2.5 inches)88%low
February Weather-2°C (29°F)66 mm (2.6 inches)87%moderate
March Weather3°C (38°F)73 mm (2.9 inches)85%moderate
April Weather8°C (47°F)86 mm (3.4 inches)86%very high
May Weather15°C (60°F)117 mm (4.6 inches)80%very high
June Weather21°C (71°F)85 mm (3.3 inches)80%very high
July Weather24°C (75°F)91 mm (3.6 inches)80%very high
August Weather23°C (73°F)74 mm (2.9 inches)80%very high
September Weather19°C (66°F)62 mm (2.4 inches)80%high
October Weather12°C (55°F)98 mm (3.9 inches)84%moderate
November Weather4°C (40°F)77 mm (3.0 inches)89%moderate
December Weather0°C (33°F)54 mm (2.1 inches)86%low

Compare Plymouth's Climate with Cities Worldwide