August Weather in Grand Falls-Windsor, Canada

Last updated: June 18, 2025

In August, the average temperature in Grand Falls-Windsor, Canada reaches a comfortable 18°C (64°F). However, be prepared for a range, as temperatures can dip to a chilly 4°C (40°F) or rise to a warm 31°C (88°F). Rainfall is common during this month, with an average precipitation of 79 mm (3.1 in) spread over 11 days. The average humidity is notably high at 90%, enhancing the overall atmosphere of this vibrant locale.

August Temperature in Grand Falls-Windsor

In August in Grand Falls-Windsor, the average temperature is 18°C (64°F). Maximum temperatures can reach 31°C (88°F), while minimum temperatures can drop to as low as 4°C (40°F). This variability makes Grand Falls-Windsor a versatile destination, perfect for travelers looking to enjoy both warm days and cool evenings.

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

The chart illustrates August 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, August typically has an average temperature of 18°C (64°F), with highs reaching up to 31°C (88°F) and lows dropping to around 4°C (40°F).
JanFebMarAprMayJunJulAugSepOctNovDec211926354455626455453628
Data source: Temperature data for Grand Falls-Windsor 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.

August Precipitation in Grand Falls-Windsor

In Grand Falls-Windsor in August, the total precipitation amount is 79 mm (3.1 in), falling over the course of 11 days.

August Precipitation Trends in Grand Falls-Windsor

The chart displays monthly precipitation patterns in Grand Falls-Windsor, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Grand Falls-Windsor, August typically receives around 79 mm (3.1 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec8594114119103101727910090107118
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Grand Falls-Windsor

In Grand Falls-Windsor in August, humidity is 90%. With an average temperature of 18°C (64°F), this humidity feels like stepping into a warm, damp blanket that clings to your skin, making outdoor activities feel heavy and stifling, and requiring frequent breaks for hydration and cool breezes.

August Average Humidity in Grand Falls-Windsor

This chart illustrates the average monthly humidity levels in Grand Falls-Windsor, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Grand Falls-Windsor is approximately 90%, 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 August generated using information from the Copernicus Climate Change Service.

August UV Index in Grand Falls-Windsor

In Grand Falls-Windsor in August, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Grand Falls-Windsor.

Maximum UV Index Levels in Grand Falls-Windsor for August

The chart shows the monthly maximum UV Index (UVI) for Grand Falls-Windsor in August, 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 August, the maximum UV index in Grand Falls-Windsor typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2356810876421
Data source: Grand Falls-Windsor August 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 August 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 August’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 August’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

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