nomadseason

April Weather in Sioux Lookout, Canada

Last updated: June 18, 2025

In Sioux Lookout, Canada, the average temperature in April hovers around 0°C (33°F), with extremes ranging from a chilling -21°C (-6°F) to a mild 19°C (66°F). Expect 46 mm (1.8 in) of precipitation spread over 8 days, contributing to an average humidity of 90%. This blend of conditions creates a unique and often brisk atmosphere perfect for those who thrive in cooler climates!

April Temperature in Sioux Lookout

In April in Sioux Lookout, the average temperature is 0°C (33°F). The maximum can reach 19°C (66°F), and the minimum can be as low as -21°C (-6°F). Be prepared for a wide range of temperatures, making layered clothing essential for your visit.

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

The chart illustrates April 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, April typically has an average temperature of 0°C (33°F), with highs reaching up to 19°C (66°F) and lows dropping to around -21°C (-6°F).
JanFebMarAprMayJunJulAugSepOctNovDec5421324963686454402210
Data source: Temperature data for Sioux Lookout 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.

April Precipitation in Sioux Lookout

In Sioux Lookout in April, the precipitation amount is 46 mm (1.8 in) over the course of 8 days.

April Precipitation Trends in Sioux Lookout

The chart displays monthly precipitation patterns in Sioux Lookout, with values for each month alongside April’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April’s conditions compare to those of other months. In Sioux Lookout, April typically receives around 46 mm (1.8 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec25302546638410486133834038
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

April Humidity in Sioux Lookout

In Sioux Lookout in April humidity is 90%. With average temperature 0°C (33°F) this humidity feels like a damp chill that clings to your skin, making every step outside feel heavier and more exhausting for traveling.

April Average Humidity in Sioux Lookout

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

April UV Index in Sioux Lookout

In Sioux Lookout in April, 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 April

The chart shows the monthly maximum UV Index (UVI) for Sioux Lookout in April, 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 April, the maximum UV index in Sioux Lookout typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235789876421
Data source: Sioux Lookout April 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 April 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 April’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 April’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

Compare Sioux Lookout's Climate with Cities Worldwide