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January Weather in Nepean, Canada

Last updated: June 18, 2025

In Nepean, Canada, the average temperature in January hovers around -8°C (18°F), with potential extremes ranging from a frigid -32°C (-25°F) to a mild 11°C (52°F). Expect 74 mm (2.9 in) of precipitation spread over 10 days, and prepare for a notably high average humidity of 93%.

January Temperature in Nepean

In January in Nepean, the average temperature is -8°C (18°F). The maximum can reach 11°C (52°F), while the minimum can drop as low as -32°C (-25°F). Travelers should be prepared for a wide range of temperatures and dress accordingly to enjoy their visit.

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

The chart illustrates January temperature patterns in Nepean, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Nepean, January typically has an average temperature of -8°C (18°F), with highs reaching up to 11°C (52°F) and lows dropping to around -32°C (-25°F).
JanFebMarAprMayJunJulAugSepOctNovDec172028435665716961493424
Data source: Temperature data for Nepean 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 Nepean

In Nepean in January, the precipitation amount is 74 mm (2.9 in) spread over a period of 10 days.

January Precipitation Trends in Nepean

The chart displays monthly precipitation patterns in Nepean, 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 Nepean, January typically receives around 74 mm (2.9 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec7478841151119211289661319477
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Nepean

In Nepean in January humidity is 93%. With an average temperature of -8°C (18°F), this humidity feels like a bone-chilling dampness that seeps into your clothes, making even the briefest moments outside feel uncomfortable and heavy, as if you're trudging through a misty, cold cloud that wraps around you.

January Average Humidity in Nepean

This chart illustrates the average monthly humidity levels in Nepean, 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 Nepean is approximately 93%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec93%93%86%82%75%68%69%67%72%83%88%89%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Nepean

In Nepean 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 Nepean, you can visit Hourly UV Index in Nepean.

Maximum UV Index Levels in Nepean for January

The chart shows the monthly maximum UV Index (UVI) for Nepean 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 Nepean typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec245899987532
Data source: Nepean 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 Nepean Compares to Other Months

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

This table compares monthly weather conditions in Nepean, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-8°C (18°F)74 mm (2.9 inches)93%low
February Weather-7°C (20°F)78 mm (3.1 inches)93%moderate
March Weather-2°C (29°F)84 mm (3.3 inches)86%moderate
April Weather6°C (43°F)115 mm (4.5 inches)82%very high
May Weather13°C (57°F)111 mm (4.4 inches)75%very high
June Weather19°C (66°F)92 mm (3.6 inches)68%very high
July Weather22°C (72°F)112 mm (4.4 inches)69%very high
August Weather20°C (69°F)89 mm (3.5 inches)67%very high
September Weather16°C (61°F)66 mm (2.6 inches)72%high
October Weather10°C (49°F)131 mm (5.1 inches)83%moderate
November Weather1°C (34°F)94 mm (3.7 inches)88%moderate
December Weather-5°C (24°F)77 mm (3.0 inches)89%low

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