Collingwood (Blue Mountains) weather in September
Temperature, rain and sunshine in September: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in September
Good
Best time to visit: May – September
Best for skiing: December – April
What is the weather like in Collingwood (Blue Mountains) in September?
In September, Collingwood (Blue Mountains) is mild: daytime highs average 20 °C, and nights cool down to about 14 °C. Expect around 6 hours of sunshine a day. Rain is frequent, with about 11 rainy days and 84 mm in total. All in all, September is a good month for a holiday in Collingwood (Blue Mountains).
September compared
How the weather changes from August to October. Tap a month to open it.
| AugustAug | SeptemberSep | OctoberOct | |
|---|---|---|---|
| Score | 79 | 76 | 47 |
| Day | 24° | 20° | 13° |
| Night | 18° | 14° | 8° |
| Sun | 7 h | 6 h | 4 h |
| Rain days | 12 | 11 | 14 |
More details for September
- Daylight
- 12 h 36 min06:58 – 19:34
- UV index
- 5 · moderateclear sky, noon (estimate)All months
- Muggy days
- 2 daysdew point 18 °C or moreAll months
- Wind
- 19 km/haverage daily peakAll months
- Cloud cover
- 53 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Snow days
- 0 days1 cm or more of fresh snowAll months
- Time zone
- UTC−4America/Toronto
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %50 %
- Few rainy daysweight 30 %52 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Mountain air”.
What to pack in September
- Sunscreen
- A jumper for the evenings
- Rain jacket or umbrella
Collingwood (Blue Mountains) in September: quick answers
Is Collingwood (Blue Mountains) hot in September?
No. In September, Collingwood (Blue Mountains) is mild: daytime highs average 20 °C and nights drop to about 14 °C.
Does it rain much in Collingwood (Blue Mountains) in September?
Rain is frequent, with about 11 rainy days and 84 mm in total.
Collingwood (Blue Mountains) month by month
The whole year in Collingwood (Blue Mountains)All destinations: CanadaWhere to go in September
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences