Cannon Beach, OR weather in September
Cannon Beach is mild in September, with some rain: highs average 68°F and nights drop to about 51°F. Rain falls on about 9 days. This is the peak of the warm season in Cannon Beach. A great month for outdoor plans.
- Normal high
- 68°F
- Normal low
- 51°F
- Wet days
- 9
- 4.5 in total
- Muggy days
- 0
- dew point 65°F+
How September changes from start to finish
| September 1 | September 30 | |
|---|---|---|
| Normal high | 69°F | 65°F |
| Normal low | 53°F | 48°F |
| Chance of a wet day | 27% | 38% |
| Sunrise / sunset | 6:36 am / 7:54 pm | 7:13 am / 6:58 pm |
| Daylight | 13.3 h | 11.8 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Pacific Time).
A typical September day
- 6 am53°Fdew point 51°F
- 9 am60°Fdew point 54°F
- Noon65°Fdew point 54°F
- 3 pm65°Fdew point 54°F
- 6 pm61°Fdew point 54°F
- 9 pm57°Fdew point 53°F
NOAA hourly normals (local standard time) from Astoria Rgnl Airport (19 mi away); average wind 7 mph.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F19 of 30
- Beach dayshigh 80-95°F, under 0.05 in of rain, afternoon wind under 15 mph2 of 30
- Hot dayshigh 90°F or more0 of 30
- Muggy daysdaily mean dew point 65°F or more0 of 30
- Wet daysat least 0.01 in of rain or melted snow9 of 30
- Notable rainat least 0.10 in6 of 30
- Freezing nightslow 32°F or below0 of 30
- Snow on the groundsnow depth 1 in or more0 of 30
Average days per September, counted from daily records for each year 1991-2020.
Rain in September
Normal precipitation is 4.5 in; a dry September brings about 1.8 in and a wet one about 6.9 in (25th and 75th percentiles). About 3 days bring half an inch or more, and about 1 an inch or more.
How September varies from year to year
- Warmest September, 1991-20202014: average high 72°F
- Coolest September1996: average high 65°F
- Wettest September2013: 14.6 in
- Driest September1991: 0.09 in
- Highest reading92°F (September 22, 2009)
- Lowest reading36°F (September 30, 2019)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
September compared with August and October
| August | September | October | |
|---|---|---|---|
| Normal high | 69°F | 68°F | 61°F |
| Normal low | 54°F | 51°F | 45°F |
| Wet days | 6 | 9 | 16 |
| Comfortable days | 25 | 19 | 6 |
| Daylight | 14.1 h | 12.5 h | 10.9 h |
Highs change by -1°F from August and -7°F into October.
Nearby alternatives in September
- Warmer: Hillsboro, OR53 mi · high 76°F · 6 wet days
- Drier: Eugene, OR134 mi · high 78°F · 6 wet days
How Cannon Beach ranks in September
- Normal high364th warmest of 378 cities; 6th of 6 in Oregon
- Wet days251st driest of 378
- Comfortable days22nd most of 342
What to pack for Cannon Beach in September
- A rain jacket or umbrella – rain on about 9 days
Heating and cooling
September has 185 heating degree days and 6 cooling degree days (base 65°F), 4% of the year's total heating and cooling demand.
Questions
How cold is Cannon Beach in September?
The normal high is 68°F and the normal low is 51°F. From 1991 to 2020 the coldest September reading was 36°F (most recently on September 30, 2019).
Does it rain a lot in Cannon Beach in September?
About 9 days in September have at least 0.01 in of precipitation, and the normal total is 4.6 in. The wettest September in 1991-2020 was in 2013 (14.6 in); the driest was in 1991 (0.09 in).
Is September a good time to visit Cannon Beach?
September ranks 3rd of 12 months on our comfort score for Cannon Beach (73 out of 100). It has about 19 comfortable days. The best months are July and August.
Where the numbers come from
- Temperature and humidity and wind by hour: Astoria Rgnl Airport (USW00094224), 19 mi NNE of the city center, 9 ft . NOAA normals and daily records, 1991-2020.
- Rain and snowfall: Nehalem 9 Ne (USC00355971), 11 mi ESE of the city center, 140 ft (103 ft higher than the city). NOAA normals and daily records, 1991-2020.
- Snow depth and frost dates: Seaside (USC00357641), 6.8 mi NNE of the city center, 10 ft . NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Astoria Regional Airport (727910-94224), 19 mi NNE of the city center, 11 ft . Hourly observations, 1991-2020.
- Not available for this location: cloud cover (no station close enough or similar enough in elevation).