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September Weather in Port McNeill, Canada

Last updated: June 18, 2025

In Port McNeill, Canada, the average temperature in September is a mild 12°C (54°F), with a minimum dipping to 4°C (40°F) and a maximum soaring to 28°C (82°F). Expect some rain, as 192 mm (7.5 in) of precipitation is likely over 16 days, contributing to an average humidity of 87%. Embrace the cozy atmosphere!

September Temperature in Port McNeill

In September in Port McNeill, the average temperature is 12°C (54°F), with maximums reaching 28°C (82°F) and minimums dipping as low as 4°C (40°F). This variation in temperature makes it a perfect time to explore the outdoors while packing layers for the cooler evenings.

September Weather in Port McNeill: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Port McNeill, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Port McNeill, September typically has an average temperature of 12°C (54°F), with highs reaching up to 28°C (82°F) and lows dropping to around 4°C (40°F).
JanFebMarAprMayJunJulAugSepOctNovDec373538434953575854464137
Data source: Temperature data for Port McNeill 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.

September Precipitation in Port McNeill

In Port McNeill in September, the total precipitation amount reaches 192 mm (7.5 in) over the course of 16 days.

September Precipitation Trends in Port McNeill

The chart displays monthly precipitation patterns in Port McNeill, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Port McNeill, September typically receives around 192 mm (7.5 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec2852122151561091146882192263360284
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Port McNeill

In Port McNeill in September humidity is 87%. With an average temperature of 12°C (54°F), this humidity feels like a damp embrace, making it quite uncomfortable for traveling, as the air feels heavy and can quickly sap your energy as you explore the sights.

September Average Humidity in Port McNeill

This chart illustrates the average monthly humidity levels in Port McNeill, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Port McNeill is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%85%87%87%82%84%87%85%87%90%87%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Port McNeill

In Port McNeill in September, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Port McNeill, you can refer to this Hourly UV Index in Port McNeill.

Maximum UV Index Levels in Port McNeill for September

The chart shows the monthly maximum UV Index (UVI) for Port McNeill in September, 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 September, the maximum UV index in Port McNeill typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec234678986421
Data source: Port McNeill September 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 September Weather in Port McNeill Compares to Other Months

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

This table compares monthly weather conditions in Port McNeill, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (37°F)285 mm (11.2 inches)86%low
February Weather2°C (35°F)212 mm (8.3 inches)85%moderate
March Weather4°C (39°F)215 mm (8.5 inches)87%moderate
April Weather6°C (43°F)155 mm (6.1 inches)87%high
May Weather9°C (49°F)109 mm (4.3 inches)82%high
June Weather12°C (53°F)114 mm (4.5 inches)84%very high
July Weather14°C (57°F)68 mm (2.7 inches)87%very high
August Weather14°C (58°F)82 mm (3.2 inches)85%very high
September Weather12°C (54°F)192 mm (7.5 inches)87%high
October Weather8°C (47°F)263 mm (10.4 inches)90%moderate
November Weather5°C (42°F)360 mm (14.2 inches)87%low
December Weather3°C (37°F)284 mm (11.2 inches)88%low

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