Terrace Weather in September
September in Terrace sees daytime temperatures around 14°C (57°F) and lows of 6°C (43°F) at night. Being part of the rainy season, heavy rainfall is a regular part of the day, so pack accordingly.
Rainfall in Terrace in September
As part of the rainy season, Terrace sees around 16 days of rain in September, with an average of 196 mm (7.7 in). Rainy season showers tend to be fairly substantial. A good rain jacket or umbrella is worth having with you most days.
Temperature in Terrace in September
In September, Terrace gets moderate temperatures, with highs of 14°C (57°F). Nights cool to around 6°C (43°F). The difference between afternoon and evening temperatures is usually noticeable. Nights drop to 6°C (43°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.If you prefer dry days with pleasant temperatures, September may not be the ideal month to visit Terrace. Our weather planner can help you explore destinations with more pleasant weather conditions.
Terrace Temperature in September
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Chance of Rain
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Terrace Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Terrace - and find the best time to visit.
Daily Historical Temperatures
49-year average (1976-2025)
Based on our historical records, temperatures in Terrace typically drop from around 18°C (64°F) at the start of September to approximately 13°C (55°F) by the end. Nights are cool, with lows typically ranging from 6°C (43°F) to 10°C (50°F).
Average temperatures in September
Daily Historical Precipitation
49-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather records for Terrace in September
Browse day-by-day weather records for Terrace spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Terrace historical weather extremes in September
Based on weather observations in Terrace between 2006 and 2025, these are the recorded extremes during September.
- The warmest day in September was on September 5, 2017, with a maximum of 28°C (82°F).
- The coldest September day was on September 30, 2024, with a maximum of 7°C (45°F).
- Terrace registered its coldest September night on September 21, 2010, with temperatures dropping to 1°C (34°F).
- The wettest day in September Terrace was on September 22, 2025 with 55 mm (2.2 in) of precipitation.
Best Places in Canada in September
Find out more about the weather in Canada and which places have the best travel conditions in this month. See all of Canada in September →
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Terrace in September
The weather can be unpredictable in September, so pack clothes you can easily mix and match. You could bring jeans, other long pants, and a few t-shirts. A light jacket or light sweater will be pleasant for the cooler moments. Also bring a poncho, it will rain a lot! Waterproof everything you can.
What To Do in Terrace in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling5/10 -
Walking5/10 -
Camping3/10
Terrace 3-Day Forecast
See the full Terrace climate overview or explore weather in Canada.
Popular in September
Where to go in September - average daytime high across popular destinations.
Toronto
22°C (72°F) Niagara Falls23°C (73°F) Montréal
22°C (72°F) Ottawa22°C (72°F) Quebec City
20°C (68°F) Vancouver19°C (66°F) Calgary19°C (66°F) Whistler15°C (59°F) 
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