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March Weather in Westport, United States

Last updated: June 24, 2025

In March, the average temperature in Westport, United States hovers around -1°C (30°F), but don't be fooled by the mild average; temperatures can dip as low as -21°C (-6°F) or rise to a surprising 22°C (72°F). Expect some rain, with 66 mm (2.6 in) of precipitation spread over about 10 days, and prepare for a damp atmosphere with an average humidity of 86%.

March Temperature in Westport

In March in Westport, the average temperature is -1°C (30°F), with maximums reaching 22°C (72°F) and minimums plunging to -21°C (-6°F). It's a time when travelers should prepare for a wide range of temperatures, making layered clothing essential for outdoor adventures.

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

The chart illustrates March temperature patterns in Westport, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Westport, March typically has an average temperature of -1°C (30°F), with highs reaching up to 22°C (72°F) and lows dropping to around -21°C (-6°F).
JanFebMarAprMayJunJulAugSepOctNovDec202330435665706961503627
Data source: Temperature data for Westport generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

March Precipitation in Westport

In Westport in March, the precipitation amount is 66 mm (2.6 in) over the course of 10 days.

March Precipitation Trends in Westport

The chart displays monthly precipitation patterns in Westport, 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 Westport, March typically receives around 66 mm (2.6 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec767666107911141231157214210177
Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.
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March Humidity in Westport

In Westport in March, humidity is 86%. With an average temperature of -1°C (30°F), this humidity feels like a heavy blanket wrapping around you, making traveling feel much colder and more uncomfortable than the temperature suggests.

March Average Humidity in Westport

This chart illustrates the average monthly humidity levels in Westport, 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 Westport is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec93%92%86%85%80%74%76%75%78%86%89%89%
Data source: Humidity data for March generated using information from the Copernicus Climate Change Service.

March UV Index in Westport

In Westport 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 Westport.

Maximum UV Index Levels in Westport for March

The chart shows the monthly maximum UV Index (UVI) for Westport 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 Westport typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2458910997532
Data source: Westport 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 Westport Compares to Other Months

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

This table compares monthly weather conditions in Westport, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-6°C (21°F)76 mm (3.0 inches)93%low
February Weather-5°C (23°F)76 mm (3.0 inches)92%moderate
March Weather-1°C (30°F)66 mm (2.6 inches)86%moderate
April Weather6°C (43°F)107 mm (4.2 inches)85%very high
May Weather13°C (56°F)91 mm (3.6 inches)80%very high
June Weather18°C (65°F)114 mm (4.5 inches)74%very high
July Weather21°C (71°F)123 mm (4.8 inches)76%very high
August Weather20°C (69°F)115 mm (4.5 inches)75%very high
September Weather16°C (62°F)72 mm (2.8 inches)78%high
October Weather10°C (50°F)142 mm (5.6 inches)86%moderate
November Weather2°C (36°F)101 mm (4.0 inches)88%moderate
December Weather-3°C (27°F)77 mm (3.0 inches)89%low

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