nomadseason

May Weather in Nepean, Canada

Last updated: June 18, 2025

In May, the average temperature in Nepean, Canada hovers around 13°C (57°F). However, be prepared for a range that can dip to a chilly -3°C (27°F) or soar to a sizzling 35°C (96°F). With 111 mm (4.4 in) of precipitation spread over 13 days, you might want to bring an umbrella. The average humidity is also quite high at 75%, making for a unique but refreshing climate experience!

May Temperature in Nepean

In May in Nepean, the average temperature is 13°C (57°F), with maximums reaching 35°C (96°F) and minimums dropping as low as -3°C (27°F). It's advisable to pack a versatile wardrobe to accommodate both warm and chilly conditions during your travels.

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

The chart illustrates May 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, May typically has an average temperature of 13°C (57°F), with highs reaching up to 35°C (96°F) and lows dropping to around -3°C (27°F).
JanFebMarAprMayJunJulAugSepOctNovDec172028435665716961493424
Data source: Temperature data for Nepean 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.

May Precipitation in Nepean

In Nepean in May, the precipitation amount reaches 111 mm (4.4 in) over the course of 13 days.

May Precipitation Trends in Nepean

The chart displays monthly precipitation patterns in Nepean, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Nepean, May typically receives around 111 mm (4.4 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec7478841151119211289661319477
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

May Humidity in Nepean

In Nepean in May humidity is 75%. With average temperature 13°C (57°F), this humidity feels like a damp chill, making it essential for travelers to dress in layers and be prepared for a slightly uncomfortable experience while exploring the area.

May Average Humidity in Nepean

This chart illustrates the average monthly humidity levels in Nepean, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Nepean is approximately 75%, 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 May generated using information from the Copernicus Climate Change Service.

May UV Index in Nepean

In Nepean in May, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Nepean.

Maximum UV Index Levels in Nepean for May

The chart shows the monthly maximum UV Index (UVI) for Nepean in May, 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 May, the maximum UV index in Nepean typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec245899987532
Data source: Nepean May 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 May 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 May’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 May’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

Compare Nepean's Climate with Cities Worldwide