Banff weather in September
Banff in September averages 10°C (49°F) and 45 mm of rain.
Of the twelve months in Banff, September is the fourth warmest and the third wettest.
- Average temp
- 10°C (49°F)
2–17°C · 36–62°F
- Rainfall
- 45 mm
Not much rain
- Sunshine
- —
What is Banff like in September?
Daytime
Days are cool.
Rain
Rain is usually light.
Evening
Evenings are cooler. A layer helps after sunset.
What should I pack for Banff in September?
A warm mid-layer
Nights drop to around 2°C (36°F).
September compared with August and October
September in Banff is 4.5°C cooler than August and about as wet as it, which averages 14°C (57°F).
September in Banff is 6.1°C warmer than October and 13 mm wetter than it, which averages 3°C (38°F).
Daylight in Banff in September
On 15 September the sun is up for 12 hours 36 minutes in Banff, rising about 07:18 and setting about 19:54 local time.
September ends 1 hour 52 minutes shorter than it begins, so the last week of the month is a different length of day from the first.
That is 3 hours 58 minutes short of June, the longest-lit month here.
Where to stay in Banff
Dates are a starting point for September.
Travel guides for Banff
What to read before you book.
Banff weather by month
TemperatureRainfall
How September compares with the rest of the year
September is highlighted. Every other month links to its own page.
| Month | Average | Rainfall |
|---|---|---|
| January | -8°C / 18°F | 19 mm |
| February | -7°C / 20°F | 19 mm |
| March | -2°C / 28°F | 27 mm |
| April | 3°C / 37°F | 35 mm |
| May | 7°C / 45°F | 44 mm |
| June | 11°C / 52°F | 66 mm |
| July | 15°C / 59°F | 42 mm |
| August | 14°C / 57°F | 45 mm |
| September | 10°C / 49°F | 45 mm |
| October | 3°C / 38°F | 32 mm |
| November | -3°C / 26°F | 25 mm |
| December | -9°C / 16°F | 19 mm |
Similar weather in September
Other destinations whose September averages sit close to this one.
Check another month
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FAQs about Banff in September
September climate averages for Banff, 1991–2020.
Banff averages 10°C (49°F) in September, ranging from about 2°C (36°F) at night to 17°C (62°F) in the afternoon. That is a 1991–2020 average, so an individual week can run either side of it.
Barely. September sees only about 45 mm, so rain is unlikely to affect your plans.
Yes. September averages 10°C (49°F) against 3°C (38°F) in October — 6.1°C warmer.
September is 4.5°C cooler than August, and about as wet.
Yes. September falls inside the most comfortable stretch of the year here, May to October, on temperature and rainfall together.
This page does not show today's weather. It is a 1991–2020 climate normal from Meteostat — a long-run average of what September is usually like, which is what you want when booking months ahead. For today or the coming week, check a live forecast.
About 12 hours 36 minutes of daylight in mid-September, against 16 hours 34 minutes in June and 7 hours 55 minutes in December.
On 15 September, sunrise is about 07:18 and sunset about 19:54 local time. Both shift across the month — the month ends 1 hour 52 minutes shorter than it starts.
