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April Weather in Mattawa, Canada

Last updated: June 18, 2025

In Mattawa, Canada, the average temperature for April hovers around 3°C (38°F). During this time, temperatures can dip as low as -18°C (0°F) and rise to a warm 28°C (83°F). Expect 99 mm (3.9 in) of precipitation over 13 days, contributing to a notable average humidity of 85%.

April Temperature in Mattawa

In April in Mattawa, the average temperature is 3°C (38°F). Maximum temperatures can reach 28°C (83°F), while minimums can drop as low as -18°C (0°F). Be prepared for a wide range of weather conditions when traveling during this time.

April Weather in Mattawa: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Mattawa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mattawa, April typically has an average temperature of 3°C (38°F), with highs reaching up to 28°C (83°F) and lows dropping to around -18°C (0°F).
JanFebMarAprMayJunJulAugSepOctNovDec131524385262686557453019
Data source: Temperature data for Mattawa 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.

April Precipitation in Mattawa

In Mattawa in April, the precipitation amount is 99 mm (3.9 in) over the course of 13 days.

April Precipitation Trends in Mattawa

The chart displays monthly precipitation patterns in Mattawa, 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 Mattawa, April typically receives around 99 mm (3.9 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec556661100103106951161061038676
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Mattawa

In Mattawa in April, humidity is 85%. With an average temperature of 3°C (38°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities uncomfortable and travel less enjoyable as you contend with the heavy, cold air surrounding you.

April Average Humidity in Mattawa

This chart illustrates the average monthly humidity levels in Mattawa, 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 Mattawa is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec96%95%89%85%74%67%71%71%76%86%90%94%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Mattawa

In Mattawa 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 Mattawa.

Maximum UV Index Levels in Mattawa for April

The chart shows the monthly maximum UV Index (UVI) for Mattawa 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 Mattawa typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235799987532
Data source: Mattawa 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 Mattawa Compares to Other Months

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

This table compares monthly weather conditions in Mattawa, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-11°C (13°F)55 mm (2.2 inches)96%low
February Weather-10°C (15°F)66 mm (2.6 inches)95%moderate
March Weather-4°C (24°F)61 mm (2.4 inches)89%moderate
April Weather3°C (38°F)99 mm (3.9 inches)85%high
May Weather11°C (53°F)103 mm (4.1 inches)74%very high
June Weather17°C (62°F)106 mm (4.2 inches)67%very high
July Weather20°C (68°F)95 mm (3.7 inches)71%very high
August Weather18°C (65°F)116 mm (4.6 inches)71%very high
September Weather14°C (57°F)105 mm (4.2 inches)76%high
October Weather7°C (46°F)103 mm (4.0 inches)86%moderate
November Weather-1°C (31°F)86 mm (3.4 inches)90%moderate
December Weather-7°C (19°F)76 mm (3.0 inches)94%low

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