Everything below is collected in one spot so you do not have to cross-check Brest climate: monthly averages by hand. The gap between Jan and Jul is 25.9 C here: -5.0 C against 20.9 C. No month dominates: the wettest is Jul at 2.54 mm/day, the driest Feb at 1.26 mm/day. Taken together that is roughly 638 mm of rain a year for the grid cell. The build runs on a schedule and caches the last good response, so the numbers stay put even when the upstream API is having a bad day. Exact monthly values are in the table; links below cover adjacent locations and years.
Annual mean temperature 8.2 C
Warmest month Jul (20.9 C)
Coldest month Jan (-5.0 C)
Wettest month Jul (2.54 mm/day)
All-time record high 37.1 C
All-time record low -36.2 C
Annual precipitation 639 mm / year
Coordinates 52.10894, 23.71749
Population 347,138
Average monthly temperature and rainfall in Brest
Month
Mean temp (C)
Rain (mm/day)
Record high (C)
Record low (C)
Jan
-5.0
1.36
10.4
-36.2
Feb
-3.4
1.26
12.1
-28.6
Mar
1.6
1.27
19.0
-19.8
Apr
8.3
1.36
29.0
-5.3
May
14.2
2.49
29.9
-2.8
Jun
18.2
2.39
33.6
4.6
Jul
20.9
2.54
35.8
8.8
Aug
20.2
2.19
37.1
7.4
Sep
14.6
1.80
35.5
0.1
Oct
8.0
1.57
24.9
-10.7
Nov
2.9
1.39
18.9
-16.2
Dec
-2.3
1.38
11.2
-21.4
What the Brest climate table shows
Values are multi-decadal climatological averages for the 52.10894, 23.71749 grid cell, not a single year. Rain is the daily mean, so a value of 2.00 mm/day is about 60 mm across a 30-day month. Averages smooth over extremes, so use them for planning rather than for what to pack for next Tuesday.
Frequently asked questions
Is Brest climate data a forecast?
No. These are multi-decadal averages for the grid cell, not a prediction for any particular year.
Why do the numbers differ from a weather app?
An app shows one location on one day. These are long-run averages, so they smooth out single hot or cold spells.