nomadseason

September Weather in Fort Nelson, Canada

Last updated: June 18, 2025

In September, the average temperature in Fort Nelson, Canada is a mild 10°C (50°F). However, be prepared for temperature swings, with a minimum of -6°C (22°F) and a maximum reaching up to 29°C (84°F). The region experiences an average precipitation of 30 mm (1.2 in) over 6 days, and the humidity lingers at a notable 83%, adding a touch of dampness to the air.

September Temperature in Fort Nelson

In September in Fort Nelson, the average temperature is 10°C (50°F), with maximums reaching up to 29°C (84°F) and minimums dropping as low as -6°C (22°F). Be prepared for a wide range of temperatures during your travels!

September Weather in Fort Nelson: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Fort Nelson, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Fort Nelson, September typically has an average temperature of 10°C (50°F), with highs reaching up to 29°C (84°F) and lows dropping to around -6°C (22°F).
JanFebMarAprMayJunJulAugSepOctNovDec241634525963604935113
Data source: Temperature data for Fort Nelson generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Fort Nelson

In Fort Nelson in September, the total precipitation amount is 30 mm (1.2 in) spread across 6 days.

September Precipitation Trends in Fort Nelson

The chart displays monthly precipitation patterns in Fort Nelson, 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 Fort Nelson, September typically receives around 30 mm (1.2 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec22213021391061076930224218
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Fort Nelson

In Fort Nelson in September, humidity is 83%. With an average temperature of 10°C (50°F), this humidity feels like a damp chill that clings to your skin, making outdoor exploration less comfortable and prompting visitors to seek cozy indoor activities.

September Average Humidity in Fort Nelson

This chart illustrates the average monthly humidity levels in Fort Nelson, 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 Fort Nelson is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec95%94%88%85%81%80%82%80%83%89%94%97%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Fort Nelson

In Fort Nelson in September, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Fort Nelson.

Maximum UV Index Levels in Fort Nelson for September

The chart shows the monthly maximum UV Index (UVI) for Fort Nelson 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 Fort Nelson typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123466765311
Data source: Fort Nelson 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 Fort Nelson Compares to Other Months

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

This table compares monthly weather conditions in Fort Nelson, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-17°C (2°F)22 mm (0.9 inches)95%low
February Weather-16°C (4°F)21 mm (0.8 inches)94%low
March Weather-9°C (16°F)30 mm (1.2 inches)88%moderate
April Weather1°C (34°F)21 mm (0.8 inches)84%moderate
May Weather11°C (52°F)38 mm (1.5 inches)81%high
June Weather15°C (60°F)106 mm (4.2 inches)80%high
July Weather17°C (63°F)107 mm (4.2 inches)82%high
August Weather16°C (60°F)69 mm (2.7 inches)80%high
September Weather10°C (50°F)30 mm (1.2 inches)83%moderate
October Weather2°C (35°F)22 mm (0.8 inches)89%moderate
November Weather-11°C (12°F)42 mm (1.7 inches)94%low
December Weather-16°C (3°F)18 mm (0.7 inches)97%low

Compare Fort Nelson's Climate with Cities Worldwide