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September Weather in Terrace, Canada

Last updated: June 18, 2025

In Terrace, Canada, the average temperature in September is 10°C (50°F). During this time, temperatures can range from a chilly -2°C (29°F) to a warm 26°C (78°F). Expect significant moisture, with an average precipitation amount of 187 mm (7.4 in) spread across 19 days, resulting in a high average humidity of 92%. Prepare for a month that feels both crisp and damp!

September Temperature in Terrace

In September in Terrace, the average temperature is 10°C (50°F), with maximums reaching 26°C (78°F) and minimums dropping as low as -2°C (29°F). This diverse range makes it essential for travelers to pack accordingly and be prepared for varying weather conditions.

September Weather in Terrace: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Terrace, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Terrace, September typically has an average temperature of 10°C (50°F), with highs reaching up to 26°C (78°F) and lows dropping to around -2°C (29°F).
JanFebMarAprMayJunJulAugSepOctNovDec252431374752575650393427
Data source: Temperature data for Terrace 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 Terrace

In Terrace in September, the total precipitation amount is 187 mm (7.4 in) over the course of 19 days.

September Precipitation Trends in Terrace

The chart displays monthly precipitation patterns in Terrace, 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 Terrace, September typically receives around 187 mm (7.4 inches) of precipitation spread over approximately 19 days.
JanFebMarAprMayJunJulAugSepOctNovDec215163185117108128104147187239310211
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Terrace

In Terrace in September humidity is 92%. With an average temperature of 10°C (50°F), this humidity feels like a chilly, damp cloak wrapping around you, making every step outside feel heavy and each breath a bit more labored, turning exploring into an uncomfortable challenge.

September Average Humidity in Terrace

This chart illustrates the average monthly humidity levels in Terrace, 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 Terrace is approximately 92%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%89%88%88%83%80%88%90%92%94%92%92%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Terrace

In Terrace 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 Terrace, you can refer to this Hourly UV Index in Terrace.

Maximum UV Index Levels in Terrace for September

The chart shows the monthly maximum UV Index (UVI) for Terrace 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 Terrace typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124688876321
Data source: Terrace 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 Terrace Compares to Other Months

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

This table compares monthly weather conditions in Terrace, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (26°F)215 mm (8.5 inches)90%low
February Weather-5°C (24°F)162 mm (6.4 inches)89%low
March Weather0°C (32°F)185 mm (7.3 inches)88%moderate
April Weather3°C (37°F)117 mm (4.6 inches)88%high
May Weather8°C (47°F)107 mm (4.2 inches)83%very high
June Weather11°C (53°F)128 mm (5.0 inches)80%very high
July Weather14°C (57°F)104 mm (4.1 inches)88%very high
August Weather14°C (57°F)147 mm (5.8 inches)90%high
September Weather10°C (50°F)187 mm (7.4 inches)92%high
October Weather4°C (39°F)239 mm (9.4 inches)94%moderate
November Weather1°C (34°F)309 mm (12.2 inches)91%low
December Weather-3°C (27°F)211 mm (8.3 inches)92%low

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