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October Weather in Port-Cartier, Canada

Last updated: June 18, 2025

In October, the average temperature in Port-Cartier, Canada hovers around 6°C (43°F). Be prepared for a chilly range, with minimums dipping to -4°C (25°F) and maximums reaching up to 17°C (63°F). During this time, 122 mm (4.8 in) of precipitation is expected over about 14 days, contributing to an average humidity of 87%.

October Temperature in Port-Cartier

In October in Port-Cartier, the average temperature is 6°C (43°F). The maximum can reach 17°C (63°F), and the minimum can be as low as -4°C (25°F). It's advisable to pack layers to ensure comfort during your travels, as temperatures can vary significantly throughout the day.

October Weather in Port-Cartier: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Port-Cartier, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Port-Cartier, October typically has an average temperature of 6°C (43°F), with highs reaching up to 17°C (63°F) and lows dropping to around -4°C (25°F).
JanFebMarAprMayJunJulAugSepOctNovDec111222334455636253433119
Data source: Temperature data for Port-Cartier 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.

October Precipitation in Port-Cartier

In Port-Cartier in October, the total precipitation amount is 122 mm (4.8 in) over the course of 14 days.

October Precipitation Trends in Port-Cartier

The chart displays monthly precipitation patterns in Port-Cartier, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In Port-Cartier, October typically receives around 122 mm (4.8 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec726378107837569105145122117109
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Port-Cartier

In Port-Cartier in October, humidity is 87%. With an average temperature of 6°C (43°F), this humidity feels like a damp chill that clings to your skin, making outdoor activities uncomfortable and necessitating warm, breathable layers for traveling.

October Average Humidity in Port-Cartier

This chart illustrates the average monthly humidity levels in Port-Cartier, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in Port-Cartier is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec93%92%91%89%80%69%77%81%82%87%87%92%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Port-Cartier

In Port-Cartier in October, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Port-Cartier for better planning.

Maximum UV Index Levels in Port-Cartier for October

The chart shows the monthly maximum UV Index (UVI) for Port-Cartier in October, 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 October, the maximum UV index in Port-Cartier typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec234799776421
Data source: Port-Cartier October 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 October Weather in Port-Cartier Compares to Other Months

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

This table compares monthly weather conditions in Port-Cartier, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-12°C (12°F)72 mm (2.8 inches)93%low
February Weather-11°C (13°F)63 mm (2.5 inches)92%moderate
March Weather-6°C (22°F)78 mm (3.1 inches)91%moderate
April Weather1°C (33°F)107 mm (4.2 inches)89%high
May Weather7°C (44°F)83 mm (3.3 inches)80%very high
June Weather13°C (56°F)75 mm (2.9 inches)69%very high
July Weather17°C (63°F)69 mm (2.7 inches)77%high
August Weather17°C (63°F)105 mm (4.1 inches)81%high
September Weather12°C (53°F)145 mm (5.7 inches)82%high
October Weather6°C (43°F)122 mm (4.8 inches)87%moderate
November Weather-1°C (31°F)117 mm (4.6 inches)87%low
December Weather-7°C (19°F)109 mm (4.3 inches)92%low

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