nomadseason

May Weather in Grand Falls-Windsor, Canada

Last updated: June 18, 2025

In Grand Falls-Windsor, Canada, the average temperature for May hovers around 6°C (44°F). Expect a variety of conditions, with temperatures dipping as low as -7°C (19°F) and reaching a maximum of 29°C (84°F). With 103 mm (4.1 in) of precipitation over approximately 15 days, be prepared for some wet weather. The air carries an average humidity of 87%, contributing to a refreshing atmosphere.

May Temperature in Grand Falls-Windsor

In May in Grand Falls-Windsor, the average temperature is 6°C (44°F). Maximum temperatures can reach 29°C (84°F), while minimums can dip as low as -7°C (19°F). This wide range of temperatures means travelers should pack for both warm days and chilly nights.

May Weather in Grand Falls-Windsor: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Grand Falls-Windsor, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Grand Falls-Windsor, May typically has an average temperature of 6°C (44°F), with highs reaching up to 29°C (84°F) and lows dropping to around -7°C (19°F).
JanFebMarAprMayJunJulAugSepOctNovDec211926354455626455453628
Data source: Temperature data for Grand Falls-Windsor 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 Grand Falls-Windsor

In Grand Falls-Windsor in May, the precipitation amount is 103 mm (4.1 in) during a span of 15 days.

May Precipitation Trends in Grand Falls-Windsor

The chart displays monthly precipitation patterns in Grand Falls-Windsor, 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 Grand Falls-Windsor, May typically receives around 103 mm (4.1 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec8594114119103101727910090107118
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

May Humidity in Grand Falls-Windsor

In Grand Falls-Windsor in May humidity is 87%. With an average temperature of 6°C (44°F), this humidity feels like a damp chill that seeps into your bones, making outdoor exploration uncomfortable without proper layers and preparation.

May Average Humidity in Grand Falls-Windsor

This chart illustrates the average monthly humidity levels in Grand Falls-Windsor, 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 Grand Falls-Windsor is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%90%90%90%87%79%88%90%89%89%87%88%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Grand Falls-Windsor

In Grand Falls-Windsor in May, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Grand Falls-Windsor.

Maximum UV Index Levels in Grand Falls-Windsor for May

The chart shows the monthly maximum UV Index (UVI) for Grand Falls-Windsor 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 Grand Falls-Windsor typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2356810876421
Data source: Grand Falls-Windsor 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 Grand Falls-Windsor Compares to Other Months

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

This table compares monthly weather conditions in Grand Falls-Windsor, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-6°C (22°F)85 mm (3.3 inches)88%low
February Weather-7°C (20°F)94 mm (3.7 inches)90%moderate
March Weather-3°C (26°F)114 mm (4.5 inches)89%moderate
April Weather2°C (36°F)119 mm (4.7 inches)90%high
May Weather6°C (44°F)103 mm (4.1 inches)87%very high
June Weather13°C (55°F)101 mm (4.0 inches)79%very high
July Weather17°C (62°F)72 mm (2.8 inches)88%very high
August Weather18°C (64°F)79 mm (3.1 inches)90%high
September Weather13°C (55°F)100 mm (3.9 inches)89%high
October Weather7°C (45°F)90 mm (3.5 inches)88%moderate
November Weather2°C (36°F)107 mm (4.2 inches)87%low
December Weather-2°C (28°F)118 mm (4.6 inches)88%low

Compare Grand Falls-Windsor's Climate with Cities Worldwide