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January Weather in Mattawa, Canada

Last updated: June 18, 2025

In Mattawa, Canada, the average temperature in January hovers around -11°C (13°F). Expect chilly extremes, with minimums plummeting to -36°C (-33°F) and maximums peaking at 10°C (50°F). The month experiences 55 mm (2.2 in) of precipitation over approximately 9 days, paired with a high average humidity of 96%. Prepare for a brisk and damp experience!

January Temperature in Mattawa

In January in Mattawa, the average temperature is -11°C (13°F). The maximum can reach 10°C (50°F), while the minimum can drop as low as -36°C (-33°F). Travelers should prepare for extreme cold conditions and dress accordingly to ensure a comfortable experience.

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

The chart illustrates January 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, January typically has an average temperature of -11°C (13°F), with highs reaching up to 10°C (50°F) and lows dropping to around -36°C (-33°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.

January Precipitation in Mattawa

In Mattawa in January, the precipitation amount is 55 mm (2.2 in) over a span of 9 days.

January Precipitation Trends in Mattawa

The chart displays monthly precipitation patterns in Mattawa, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Mattawa, January typically receives around 55 mm (2.2 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec556661100103106951161061038676
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Mattawa

In Mattawa in January humidity is 96%. With an average temperature of -11°C (13°F), this humidity feels like an icy mist that envelops you, making even the brisk air seem heavy and biting, turning each breath into a frosty challenge for traveling.

January Average Humidity in Mattawa

This chart illustrates the average monthly humidity levels in Mattawa, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Mattawa is approximately 96%, 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 January generated using information from the Copernicus Climate Change Service.

January UV Index in Mattawa

In Mattawa in January, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Mattawa, you can visit Hourly UV Index in Mattawa.

Maximum UV Index Levels in Mattawa for January

The chart shows the monthly maximum UV Index (UVI) for Mattawa in January, 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 January, the maximum UV index in Mattawa typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235799987532
Data source: Mattawa January 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 January 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 January’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 January’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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