Cannon Beach, Oregon weather in September
Temperature, sea and sunshine in September: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in September
Poor
Best time to visit: July – August
What is the weather like in Cannon Beach, Oregon in September?
In September, Cannon Beach, Oregon is mild: daytime highs average 18 °C, and nights cool down to about 13 °C. The sea averages 14.5 °C – swimming is only for the hardy. The sun shines for around 7 hours a day. Rain falls on about 7 days, adding up to 54 mm. All in all, September is not an ideal month for a holiday in Cannon Beach, Oregon.
September compared
How the weather changes from August to October. Tap a month to open it.
| AugustAug | SeptemberSep | OctoberOct | |
|---|---|---|---|
| Score | 35 | 27 | 11 |
| Day | 19° | 18° | 15° |
| Night | 14° | 13° | 10° |
| Sea | 15° | 15° | 13° |
| Sun | 8 h | 7 h | 5 h |
| Rain days | 4 | 7 | 14 |
More details for September
- Daylight
- 12 h 37 min06:53 – 19:30
- UV index
- 5 · moderateclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 14 km/haverage daily peakAll months
- Cloud cover
- 59 %on averageAll months
- Hot days
- 0 days30 °C or more
- Snow days
- 0 days1 cm or more of fresh snow
- Time zone
- UTC−7America/Los_Angeles
How the score comes together
- Temperatureweight 35 %0 %
- Seaweight 25 %0 %
- Sunshineweight 20 %62 %
- Few rainy daysweight 20 %76 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in September
- Sunscreen
- A jumper for the evenings
Cannon Beach, Oregon in September: quick answers
Is Cannon Beach, Oregon hot in September?
No. In September, Cannon Beach, Oregon is mild: daytime highs average 18 °C and nights drop to about 13 °C.
Can you swim in Cannon Beach, Oregon in September?
Only if you don't mind cold water: in September the sea averages just 14.5 °C. Comfortable swimming temperatures are not reached at any time of year.
Does it rain much in Cannon Beach, Oregon in September?
Rain falls on about 7 days, adding up to 54 mm.
Cannon Beach, Oregon month by month
The whole year in Cannon Beach, OregonAll destinations: USAWhere to go in SeptemberSea temperature 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