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March Weather in Nepean, Canada

Last updated: June 18, 2025

In March, the average temperature in Nepean, Canada hovers around -2°C (29°F). This chilly month can bring minimum temperatures plummeting to -22°C (-7°F), while the highs can reach a surprising 21°C (70°F). Expect 84 mm (3.3 in) of precipitation spread over 12 days, and a notable average humidity of 86%, making for a notably crisp, yet damp atmosphere.

March Temperature in Nepean

In March in Nepean, the average temperature is -2°C (29°F). The maximum can reach 21°C (70°F), and the minimum can be as low as -22°C (-7°F). Travelers should be prepared for a wide temperature range and pack accordingly for both warm and cold weather.

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

The chart illustrates March temperature patterns in Nepean, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Nepean, March typically has an average temperature of -2°C (29°F), with highs reaching up to 21°C (70°F) and lows dropping to around -22°C (-7°F).
JanFebMarAprMayJunJulAugSepOctNovDec172028435665716961493424
Data source: Temperature data for Nepean 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 Nepean

In Nepean in March, the precipitation amount is 84 mm (3.3 in) over a span of 12 days.

March Precipitation Trends in Nepean

The chart displays monthly precipitation patterns in Nepean, 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 Nepean, March typically receives around 84 mm (3.3 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec7478841151119211289661319477
Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.
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March Humidity in Nepean

In Nepean in March humidity is 86%. With an average temperature of -2°C (29°F), this humidity feels like a damp chill that seeps through layers of clothing, making outdoor activities uncomfortable and travel plans challenging.

March Average Humidity in Nepean

This chart illustrates the average monthly humidity levels in Nepean, 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 Nepean is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec93%93%86%82%75%68%69%67%72%83%88%89%
Data source: Humidity data for March generated using information from the Copernicus Climate Change Service.

March UV Index in Nepean

In Nepean 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 Nepean.

Maximum UV Index Levels in Nepean for March

The chart shows the monthly maximum UV Index (UVI) for Nepean 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 Nepean typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec245899987532
Data source: Nepean 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 Nepean Compares to Other Months

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

This table compares monthly weather conditions in Nepean, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-8°C (18°F)74 mm (2.9 inches)93%low
February Weather-7°C (20°F)78 mm (3.1 inches)93%moderate
March Weather-2°C (29°F)84 mm (3.3 inches)86%moderate
April Weather6°C (43°F)115 mm (4.5 inches)82%very high
May Weather13°C (57°F)111 mm (4.4 inches)75%very high
June Weather19°C (66°F)92 mm (3.6 inches)68%very high
July Weather22°C (72°F)112 mm (4.4 inches)69%very high
August Weather20°C (69°F)89 mm (3.5 inches)67%very high
September Weather16°C (61°F)66 mm (2.6 inches)72%high
October Weather10°C (49°F)131 mm (5.1 inches)83%moderate
November Weather1°C (34°F)94 mm (3.7 inches)88%moderate
December Weather-5°C (24°F)77 mm (3.0 inches)89%low

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