Mountain air

Summerland weather in September

Temperature, rain and sunshine in September: long-term averages from 30 years of weather data, not a forecast.

87

Holiday weather in September

Excellent

Best time to visit: May – September

What is the weather like in Summerland in September?

In September, Summerland is warm: daytime highs average 22 °C, and nights cool down to about 12 °C. The sun shines for around 8 hours a day. Rain falls on about 8 days, adding up to 43 mm. All in all, September is an excellent month for a holiday in Summerland.

September compared

How the weather changes from August to October. Tap a month to open it.

AugustAugSeptemberSepOctoberOct
Score788754
Day28°22°13°
Night16°12°6°
Sun10 h8 h5 h
Rain days5812

More details for September

Daylight
12 h 42 min06:33 – 19:15
UV index
4 · moderateclear sky, noon (estimate)All months
Muggy days
0 daysdew point 18 °C or moreAll months
Wind
9 km/haverage daily peakAll months
Cloud cover
50 %on averageAll months
Hot days
2 days30 °C or moreAll months
Snow days
0 days1 cm or more of fresh snowAll months
Time zone
UTC−7America/Vancouver

How the score comes together

  • Temperatureweight 50 %100 %
  • Sunshineweight 20 %75 %
  • Few rainy daysweight 30 %74 %

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

Summerland in September: quick answers

Is Summerland hot in September?

Warm rather than hot: in September, daytime highs in Summerland average 22 °C and nights cool to about 12 °C. On about 2 days the thermometer climbs to 30 °C or more.

Does it rain much in Summerland in September?

Rain falls on about 8 days, adding up to 43 mm.

Summerland month by month

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