Coos Bay in september: average Weather, Temperature and Climate
Weather in Coos Bay in september 2025
The weather in Coos Bay in september comes from statistical datas on the last years. You can view the weather statistics the entire month, but also by clicking on the tabs for the beginning, the middle and the end of the month.
Average weather throughout september
good weather
Weather at 6am
58°F
Clear/Sunny
45% of time
24%
13%
9%
Weather at 12pm
68°F
Clear/Sunny
65% of time
14%
14%
5%
Weather at 6pm
59°F
Clear/Sunny
59% of time
14%
14%
10%
Weather at 3am
56°F
46%
22%
18%
8%
Evolution of daily average temperature and precipitation in Coos Bay in september
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Coos Bay in september.
The climate of Coos Bay in september is good
the weather in Coos Bay in september is relatively dry (with 2.3in of rainfall over 3 days). The weather is worst than the previous month since in august there is an average of 0.6in of precipitation over 1 days.
The climate good here this month. Temperatures are up to 68°F. On average, the recorded minimum temperature is 58°F. Thus, the mean temperature average on this month of september in Coos Bay is 63°F. These temperatures are far removed from those records observed in Coos Bay in september with a maximum record of 86°F in 2020 and a minimum record of 47°F in 2019. You can plan to have about 23 days with temperatures up to 65°F, or 77% of time.
On this month of september, day length in Coos Bay is generally 12:29. The sun rises at 05:57 and sunset is at 18:26.
With a good climate, september is a good time to go in that area.
Seasonal average climate and temperature of Coos Bay in september
Check below seasonal norms These datas are set from the weather statements earlier years of september.
| September | |||||
| Outside temperature | |||||
| Average temperature | 63°F | ||||
| Highest temperature | 68°F | ||||
| Lowest temperature | 58°F | ||||
| Highest record temperature | 86°F (2020) | ||||
| Lowest record temperature | 47°F (2019) | ||||
| Number of days at +65°F | 23 day(s) (77%) | ||||
| Sea temperature | |||||
| Average sea temperature | 55°F | ||||
| Lowest sea temperature | 50°F | ||||
| Highest sea temperature | 59°F | ||||
| Wind | |||||
| Wind speed | 18km/h | ||||
| Wind temperature | 58°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 2.3in | ||||
| Number of days with rainfall | 3 day(s) (10%) | ||||
| Record daily rainfall | 2.9in (2013) | ||||
| Other climate data | |||||
| Humidity | 88% | ||||
| Visibility | 8.8km | ||||
| Cloud cover | 27% | ||||
| UV index | 5 | ||||
| Daily sunshine hours | 12 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 05:57 | ||||
| Time of sunset | 18:26 | ||||
| Length of day | 12:29 | ||||
| Our opinion about the weather in september | |||||
| Our opinion at whereandwhen.net | good | ||||
How was the weather last september?
Here is the day by day recorded weather in Coos Bay in september 2024:
50°F to 70°F
54°F to 68°F
52°F to 77°F
52°F to 83°F
58°F to 81°F
54°F to 77°F
56°F to 68°F
54°F to 74°F
49°F to 72°F
49°F to 68°F
54°F to 61°F
50°F to 68°F
47°F to 68°F
52°F to 68°F
52°F to 67°F
45°F to 67°F
56°F to 58°F
58°F to 65°F
58°F to 63°F
52°F to 67°F
52°F to 67°F
54°F to 65°F
59°F to 77°F
61°F to 70°F
58°F to 59°F
54°F to 65°F
59°F to 67°F
52°F to 56°F
50°F to 68°F
50°F to 72°F
Map: other cities in the United States (USA) in september
Cities near Coos Bay:
| Newport (Oregon) in september | good weather |
| Crater Lake (Oregon) in september | tolerable weather |
| Lincoln City (Oregon) in september | good weather |
| Salem (Oregon) in september | perfect weather |
| Portland in september | good weather |
| Long Beach (Washington) in september | good weather |
| Ocean Park (Washington) in september | good weather |
| Westport (Washington) in september | good weather |
| Mount Rainier National Park (Washington) in september | tolerable weather |
| Seattle in september | perfect weather |
| Black Rock Desert in september | perfect weather |
| La Push (Washington) in september | good weather |
Click over cities on the map for information about the weather in september.
Coos Bay
perfect weather
good
tolerable
bad
very bad
Weather data for Coos Bay in september:
Weather data for Coos Bay for september are derived from an average of the weather forecast since 2009 in Coos Bay. There is a margin of error and these forecasts are to be considered as general information only. The weather in Coos Bay can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to Coos Bay.