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March Weather in Port Williams, Canada

Last updated: June 18, 2025

In Port Williams, Canada, the average temperature in March hovers around -1°C (30°F). This chilly month can see minimum temperatures plummeting to -19°C (-1°F), while the maximum can reach up to 19°C (66°F). Expect 91 mm (3.6 in) of precipitation over approximately 13 days, accompanied by an average humidity level of 82% that adds to the frosty atmosphere.

March Temperature in Port Williams

In March in Port Williams, the average temperature is -1°C (30°F). The maximum can reach 19°C (66°F), while the minimum can dip as low as -19°C (-1°F). Be prepared for a diverse range of temperatures during your visit to Port Williams this month.

March Weather in Port Williams: Daily Temperature Highs, Lows, and Averages

The chart illustrates March temperature patterns in Port Williams, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Port Williams, March typically has an average temperature of -1°C (30°F), with highs reaching up to 19°C (66°F) and lows dropping to around -19°C (-1°F).
JanFebMarAprMayJunJulAugSepOctNovDec252530415061676760503929
Data source: Temperature data for Port Williams 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 Port Williams

In Port Williams in March, the precipitation amount is 91 mm (3.6 in) spread over 13 days.

March Precipitation Trends in Port Williams

The chart displays monthly precipitation patterns in Port Williams, 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 Port Williams, March typically receives around 91 mm (3.6 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec851069110510210392929482144112
Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.
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March Humidity in Port Williams

In Port Williams in March, humidity is 82%. With an average temperature of -1°C (30°F), this humidity feels like a sharp chill that penetrates your clothing, making travel uncomfortable and dampening your spirit as you navigate through the cold, moisture-laden air.

March Average Humidity in Port Williams

This chart illustrates the average monthly humidity levels in Port Williams, 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 Port Williams is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%83%82%82%82%84%86%85%83%83%85%83%
Data source: Humidity data for March generated using information from the Copernicus Climate Change Service.

March UV Index in Port Williams

In Port Williams 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 Port Williams.

Maximum UV Index Levels in Port Williams for March

The chart shows the monthly maximum UV Index (UVI) for Port Williams 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 Port Williams typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2457910987532
Data source: Port Williams 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 Port Williams Compares to Other Months

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

This table compares monthly weather conditions in Port Williams, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (25°F)85 mm (3.3 inches)82%low
February Weather-4°C (25°F)106 mm (4.2 inches)83%moderate
March Weather-1°C (30°F)91 mm (3.6 inches)82%moderate
April Weather5°C (41°F)105 mm (4.1 inches)82%high
May Weather10°C (50°F)102 mm (4.0 inches)82%very high
June Weather16°C (61°F)103 mm (4.1 inches)84%very high
July Weather19°C (67°F)92 mm (3.6 inches)86%very high
August Weather20°C (68°F)92 mm (3.6 inches)85%very high
September Weather16°C (60°F)94 mm (3.7 inches)83%high
October Weather10°C (50°F)82 mm (3.2 inches)83%moderate
November Weather4°C (39°F)144 mm (5.7 inches)85%moderate
December Weather-2°C (29°F)112 mm (4.4 inches)83%low

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