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August Weather in Sioux Lookout, Canada

Last updated: June 18, 2025

In Sioux Lookout, Canada, the average temperature in August is a comfortable 18°C (65°F). Expect a range between a chilly 7°C (45°F) and a warm 32°C (91°F). During this month, the area experiences 86 mm (3.4 in) of precipitation over about 12 days, alongside an average humidity level of 67%. Stay prepared for a mix of weather!

August Temperature in Sioux Lookout

In August in Sioux Lookout, the average temperature is 18°C (65°F). Maximum temperatures can reach 32°C (91°F), while minimums can dip as low as 7°C (45°F). This varied temperature range makes Sioux Lookout an ideal destination for travelers looking to enjoy both warm and cooler weather during their visit.

August Weather in Sioux Lookout: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Sioux Lookout, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sioux Lookout, August typically has an average temperature of 18°C (65°F), with highs reaching up to 32°C (91°F) and lows dropping to around 7°C (45°F).
JanFebMarAprMayJunJulAugSepOctNovDec5421324963686454402210
Data source: Temperature data for Sioux Lookout 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 Sioux Lookout

In Sioux Lookout in August, the precipitation amount is 86 mm (3.4 in) over a span of 12 days.

August Precipitation Trends in Sioux Lookout

The chart displays monthly precipitation patterns in Sioux Lookout, 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 Sioux Lookout, August typically receives around 86 mm (3.4 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec25302546638410486133834038
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Sioux Lookout

In Sioux Lookout in August humidity is 67%. With an average temperature of 18°C (65°F), this humidity feels like a mild blanket wrapping around you, making outdoor activities feel pleasantly refreshing, yet you may find yourself reaching for a drink more often to stay hydrated while exploring the sights.

August Average Humidity in Sioux Lookout

This chart illustrates the average monthly humidity levels in Sioux Lookout, 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 Sioux Lookout is approximately 67%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec96%96%93%90%75%66%62%67%73%82%90%96%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Sioux Lookout

In Sioux Lookout 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 Sioux Lookout.

Maximum UV Index Levels in Sioux Lookout for August

The chart shows the monthly maximum UV Index (UVI) for Sioux Lookout 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 Sioux Lookout typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235789876421
Data source: Sioux Lookout 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 Sioux Lookout Compares to Other Months

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

This table compares monthly weather conditions in Sioux Lookout, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-15°C (5°F)25 mm (1.0 inches)96%low
February Weather-15°C (4°F)30 mm (1.2 inches)96%moderate
March Weather-6°C (22°F)25 mm (1.0 inches)93%moderate
April Weather0°C (33°F)46 mm (1.8 inches)90%high
May Weather10°C (50°F)63 mm (2.5 inches)75%very high
June Weather17°C (64°F)84 mm (3.3 inches)66%very high
July Weather20°C (68°F)104 mm (4.1 inches)62%very high
August Weather18°C (65°F)86 mm (3.4 inches)67%high
September Weather12°C (54°F)133 mm (5.2 inches)73%high
October Weather5°C (41°F)82 mm (3.2 inches)82%moderate
November Weather-6°C (22°F)40 mm (1.6 inches)90%low
December Weather-12°C (10°F)38 mm (1.5 inches)96%low

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