Clearwater 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: April – September
What is the weather like in Clearwater in September?
In September, Clearwater is warm: daytime highs average 22 °C, and nights cool down to about 9 °C. Expect around 6.4 hours of sunshine a day. Rain is frequent, with about 11 rainy days and 74 mm in total. All in all, September is a good month for a holiday in Clearwater.
September compared
How the weather changes from August to October. Tap a month to open it.
| AugustAug | SeptemberSep | OctoberOct | |
|---|---|---|---|
| Score | 69 | 75 | 46 |
| Day | 28° | 22° | 13° |
| Night | 14° | 9° | 3° |
| Sun | 8.9 h | 6.4 h | 4.1 h |
| Rain days | 9 | 11 | 14 |
More details for September
- Daylight
- 12 h 45 min06:33 – 19:18
- UV index
- 4 · moderateclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 7 km/haverage daily peakAll months
- Cloud cover
- 57 %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−7offset from UTC
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %57 %
- Few rainy daysweight 30 %47 %
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
Clearwater in September: quick answers
Is Clearwater hot in September?
Warm rather than hot: in September, daytime highs in Clearwater average 22 °C and nights cool to about 9 °C. On about 2 days the thermometer climbs to 30 °C or more.
Does it rain much in Clearwater in September?
Rain is frequent, with about 11 rainy days and 74 mm in total.
Clearwater month by month
The whole year in ClearwaterAll destinations: CanadaWhere to go in September
Climate averages 1996–2025 (sunshine partly WMO station normals 1991–2020), 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