Brest in september: average Weather, Temperature and Climate
Weather in Brest in september 2025
The weather in Brest in the month of september comes from statistical datas on the past 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
Partly Cloudy
30% of time
29%
14%
11%
Weather at 12pm
67°F
Clear/Sunny
33% of time
27%
19%
16%
Weather at 6pm
63°F
Clear/Sunny
38% of time
27%
20%
12%
Weather at 3am
59°F
30%
28%
15%
14%
Evolution of daily average temperature and precipitation in Brest in september
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Brest in september.
The climate of Brest in september is good
The weather in september in Brest is relatively dry (with 2.4in of rainfall over 3 days). This is better than the previous month since in august it receives an average of 3.6in of precipitation over 5 days.
The climate good here september. The thermometer averaged maximum of 67°F. The seasonal minimum is 58°F. Thus, the mean temperature average on this month of september in Brest is 63°F. Note that seasonal normals are in contrast with those observed in Brest in september with a maximum record of 92°F in 2021 and a minimum record of 47°F in 2018. You can plan to have about 20 days with temperatures over 65°F, or 67% of time.
On average, in Brest, the days of september last 12:36. The sun rises at 06:55 and sunset is at 19:31.
With good weather conditions, this month is a good month to go in this city.
Seasonal average climate and temperature of Brest in september
Check below seasonal norms These datas are generated from the weather statements earlier years of the month of september.
| September | |||||
| Outside temperature | |||||
| Average temperature | 63°F | ||||
| Highest temperature | 67°F | ||||
| Lowest temperature | 58°F | ||||
| Highest record temperature | 92°F (2021) | ||||
| Lowest record temperature | 47°F (2018) | ||||
| Number of days at +65°F | 20 day(s) (67%) | ||||
| Sea temperature | |||||
| Average sea temperature | 62°F | ||||
| Lowest sea temperature | 60°F | ||||
| Highest sea temperature | 65°F | ||||
| Wind | |||||
| Wind speed | 22km/h | ||||
| Wind temperature | 58°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 2.4in | ||||
| Number of days with rainfall | 3 day(s) (11%) | ||||
| Record daily rainfall | 1.8in (2020) | ||||
| Other climate data | |||||
| Humidity | 88% | ||||
| Visibility | 9.2km | ||||
| Cloud cover | 42% | ||||
| UV index | 5 | ||||
| Daily sunshine hours | 10 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 06:55 | ||||
| Time of sunset | 19:31 | ||||
| Length of day | 12:36 | ||||
| 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 Brest in september 2024:
61°F to 67°F
61°F to 63°F
61°F to 63°F
58°F to 63°F
54°F to 61°F
54°F to 67°F
56°F to 63°F
59°F to 63°F
59°F to 61°F
59°F to 63°F
54°F to 59°F
54°F to 58°F
50°F to 61°F
50°F to 61°F
52°F to 61°F
56°F to 65°F
58°F to 67°F
61°F to 70°F
59°F to 70°F
59°F to 70°F
58°F to 67°F
58°F to 63°F
56°F to 59°F
58°F to 61°F
58°F to 61°F
56°F to 59°F
54°F to 58°F
50°F to 58°F
54°F to 61°F
58°F to 59°F
Map: other cities in Brittany in september
Cities near Brest:
| Plougastel-Daoulas in september | good weather |
| Roscanvel in september | good weather |
| Plouzane in september | good weather |
| Lanvéoc in september | good weather |
| Locmaria-Plouzané in september | good weather |
| Camaret-sur-Mer in september | good weather |
| Crozon in september | good weather |
| Ploumoguer in september | good weather |
| Plougonvelin in september | good weather |
| Landerneau in september | good weather |
| Ploudalmezeau in september | good weather |
| Telgruc-sur-Mer in september | good weather |
Click over cities on the map for information about the weather in september.
Brest
perfect weather
good
tolerable
bad
very bad
Weather data for Brest in september:
Weather data for Brest for september are derived from an average of the weather forecast since 2009 in Brest. There is a margin of error and these forecasts are to be considered as general information only. The weather in Brest 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 Brest.