11-day outlook — past day 10 this is an outlook from the end of the GFS run: expect differences of several degrees.
Morning
Light rain
11°
Feels like 11°
Wind↑ S 9 km/h
Humidity 99 %
💧 3.1 mm
Evening
Light rain
11°
Feels like 11°
Wind↑ NE 29 km/h
Gusts44 km/h
Humidity 86 %
💧 2.1 mm
12-day outlook — past day 10 this is an outlook from the end of the GFS run: expect differences of several degrees.
Morning
Rain showers
11°
Feels like 11°
Wind↑ NNE 26 km/h
Gusts39 km/h
Humidity 75 %
💧 0.2 mm
Evening
Overcast
11°
Feels like 11°
Wind↑ NNE 18 km/h
Gusts28 km/h
Humidity 69 %
💧 0.1 mm
13-day outlook — past day 10 this is an outlook from the end of the GFS run: expect differences of several degrees.
Morning
Clear sky
8°
Feels like 7°
Wind↑ NE 9 km/h
Humidity 80 %
💧 0.1 mm
Evening
Clear sky
8°
Feels like 7°
Wind↑ NNE 9 km/h
Humidity 81 %
14-day outlook — past day 10 this is an outlook from the end of the GFS run: expect differences of several degrees.
Morning
Clear sky
6°
Feels like 5°
Wind↑ ENE 6 km/h
Humidity 89 %
Brest forecast in charts · next 7 days
The week ahead: highs and lows
▼ This week runs -2.5° cooler than usual
Highs Lows Usual for the season (1991–2020 average)
Hourly detail
Temperature (°C) Rain (mm) Wind (km/h)
Brest climate: what a normal year looks like
From 16 h 06 min of daylight in late June to 8 h 18 min in late December.
Swimmers find the warmest sea in August (16 °C) and the coolest in March (10 °C).
The hottest stretch is August, when afternoons average 19 °C; the coldest is January, when nights average 6 °C.
Forecast highs for the coming week average 13 °C, 2 °C cooler than a normal October (15 °C).
30-year averages (1991–2020)
Month
Typical high
Typical low
Rainfall
Sea
Jan
10 °C
7 °C
108 mm
11 °C
Feb
10 °C
6 °C
88 mm
10 °C
Mar
11 °C
7 °C
73 mm
10 °C
Apr
12 °C
8 °C
74 mm
11 °C
May
15 °C
11 °C
66 mm
13 °C
Jun
17 °C
13 °C
54 mm
14 °C
Jul
19 °C
14 °C
53 mm
16 °C
Aug
19 °C
15 °C
61 mm
16 °C
Sep
18 °C
13 °C
59 mm
16 °C
Oct
15 °C
12 °C
100 mm
15 °C
Nov
12 °C
9 °C
106 mm
14 °C
Dec
10 °C
7 °C
115 mm
12 °C
Whole year
14 °C
10 °C
950 mm
13 °C
Source: our own processing of the ERA5 reanalysis (Copernicus/ECMWF) for 48.41° N, 4.50° W, 1991–2020. ERA5 averages over a 0.25° grid (about 25 km): hills, a coastline or the heat of the city itself can shift local values by a degree or two.
Air you breathe in Brest: pollution and pollen
1/6
Good
European Air Quality Index (EAQI), from Copernicus CAMS
PM2.59µg/m³
PM1017µg/m³
O₃46µg/m³
NO₂6µg/m³
SO₂1µg/m³
Pollen · dominant: Grass
AlderNone
BirchNone
GrassLow
MugwortNone
OliveNone
RagweedNone
Copernicus CAMS model, updated several times a day.
Rain radar around Brest
Rain observed over the last two hours by official weather radars around Brest, followed by the radar forecast for the next hour where the weather service provides one.
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Rain radarLast two hours, then forecast where available · drag the timeline
Moon over Brest
Waning gibbous
87 % illuminated · 18.3 days
Rise 05:41 Set 23:32
Fri30/1079%
Sat31/1069%
Sun1/1159%
Mon2/1149%Last quarter
Tue3/1138%
Wed4/1128%
Thu5/1119%
Fri6/1112%
Sat7/116%
Sun8/112%
Mon9/110%
Tue10/111%New moon
Moonrise and moonset in local time (Europe/Paris); phase and lit fraction from a synodic calculation.
Sea and tides near Brest
Tide station used: Brest · 3 km away
🌊 Sea surface
14.8 °C
satellite, 29/10
Sea state
Slight
waves 1.3 m
Period
11 s
Swell
1.3 m
TodayThu 29/10
High range92
High tide06:346.8 m
Low tide13:021.0 m
High tide18:586.5 m
TomorrowFri 30/10
High range82
Low tide01:261.3 m
High tide07:206.5 m
Low tide13:541.3 m
High tide19:476.1 m
SatSat 31/10
High range70
Low tide02:181.7 m
High tide08:126.1 m
Low tide14:511.7 m
High tide20:455.6 m
SunSun 01/11
Mean tide58
Low tide03:162.1 m
High tide09:165.7 m
Low tide15:542.0 m
High tide21:565.3 m
Indicative heights above chart datum. Coefficient: 20 for the weakest tides, 120 for the strongest.
Look up a past day in Brest
Curious about the weather in Brest on a given day? Choose a date: we read it from the ERA5 reanalysis (ECMWF / Copernicus C3S), which runs until about a week ago.
Brest weather at a glance
This page gathers everything about the weather in Brest, Finistère (29): conditions now, the forecast for each part of the day and the trend for the coming week. At the moment the sky is “mainly clear”, it is 13 °C (feels like 13 °C) and the wind blows at 14 km/h.
Expected range today: 8 °C to 13 °C and a dry sky. The forecast comes from the AtmoAtlas engine, which combines ECMWF-AIFS, NOAA GFS and DWD ICON, adjusts cloud cover with METAR reports and uses convective energy (CAPE) to flag storms, plus the tide times for Brest.
Use the Brest forecast in your own website or app: one JSON call returns weather, air quality, tides and sun and moon times. The free key needs no card.
