Temperature
Pleasant by day, brisk at night.
64°Ftypical September high
September climate
September in Brest
France · Brittany
Mild days and plenty of sun.
One of the best months here
Early to mid
Daytime high
64°F
Lows around 56°F
Rain
Several rainy days
Sun
9.5 h/day
Air feel
Comfortable
When to visit
Month-by-month fit
Best
Precipitation
Several rainy days. About 9 wet days, the lowest monthly average.
31%wet-day frequency
AmountWet-day chance
Sunshine
A mix of sunshine and cloud.
9.5 hSeptember sunshine
Heat & humidity by month
ComfortableSeptember
Easy airWarm airHumid air
Hourly temperature pattern
In September, afternoons feel about 59° and nights feel near 53°.
Very coldColdCoolNight hours
Clear sky
Mostly cloudy skies this month.
40%September Clear sky
Clear skyCloud
Wind pattern
Breezy conditions are typical in September. More a comfort consideration than a planning concern.
11 mphSeptember Breezy
More detailIncludes daypart comfort
Typical September day
September late afternoons are around 64°F, easing to about 62°F in early evening.
Avg temp Typical range
Morning59°F
Rain14%
Cloud62%
Humid airLow
Sun intensityMinimal
Best windowMidday63°F
Rain21%
Cloud65%
Humid airLow
Sun intensityModerate
Late afternoon64°F
Rain19%
Cloud61%
Humid airLow
Sun intensityModerate
Early evening61°F
Rain15%
Cloud56%
Humid airLow
Sun intensityLow
Data tableView month-by-month numbers
View month-by-month numbers
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% |
|---|---|---|---|---|---|---|
| Jan | 49 | 44 | 3.9 | 15 | 4.0 | 82 |
| Feb | 50 | 43 | 3.1 | 13 | 6.2 | 81 |
| Mar | 52 | 45 | 2.6 | 13 | 8.5 | 80 |
| Apr | 55 | 46 | 2.5 | 12 | 10.6 | 79 |
| May | 59 | 50 | 2.3 | 11 | 11.8 | 81 |
| Jun | 64 | 55 | 2.0 | 10 | 12.3 | 82 |
| Jul | 66 | 58 | 1.9 | 11 | 12.2 | 83 |
| Aug | 67 | 58 | 2.0 | 10 | 11.0 | 84 |
| Sep | 64 | 56 | 2.0 | 9 | 9.5 | 83 |
| Oct | 60 | 53 | 3.8 | 14 | 7.1 | 84 |
| Nov | 55 | 49 | 4.1 | 16 | 4.8 | 82 |
| Dec | 51 | 45 | 4.3 | 16 | 3.4 | 82 |
Similar climates
Similar
Similar travel styleNew York CityUnited StatesSimilar travel styleAberdeenUnited StatesSimilar travel styleChicagoUnited StatesSimilar travel styleBostonUnited States
Want a side-by-side climate view? Compare Brest with New York City.
Climate data notePlanning guidance, not a forecast
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Aug 27, 2026
Data & methodology