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Concarneau, Brittany climate
Cfb Oceanic / temperate
Concarneau has a mildly seasonal cool-temperate climate (Oceanic / temperate, Köppen Cfb). The hottest month is August with an average daily high near 22°C, while the coldest is January averaging around 4°C at night. Around 842 mm of precipitation falls each year, peaking in November (108 mm) and easing off in September (39 mm).
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresHours of sunshine per day
Estimated sunny hours each month — daylight length × clear-sky fraction · 1991–2020 monthly cloud cover (NASA POWER)Concarneau climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 10 | 10 | 12 | 14 | 17 | 20 | 22 | 22 | 20 | 16 | 13 | 10 |
| Avg temp (°C) | 7 | 7 | 9 | 10 | 13 | 16 | 17 | 18 | 16 | 13 | 10 | 8 |
| Avg low (°C) | 4 | 4 | 5 | 6 | 9 | 12 | 13 | 13 | 11 | 9 | 7 | 5 |
| Precipitation (mm) | 100 | 90 | 59 | 56 | 47 | 52 | 52 | 45 | 39 | 86 | 108 | 107 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 10 | 10 | 12 | 14 | 17 | 20 |
| Avg temp (°C) | 7 | 7 | 9 | 10 | 13 | 16 |
| Avg low (°C) | 4 | 4 | 5 | 6 | 9 | 12 |
| Precipitation (mm) | 100 | 90 | 59 | 56 | 47 | 52 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 22 | 22 | 20 | 16 | 13 | 10 |
| Avg temp (°C) | 17 | 18 | 16 | 13 | 10 | 8 |
| Avg low (°C) | 13 | 13 | 11 | 9 | 7 | 5 |
| Precipitation (mm) | 52 | 45 | 39 | 86 | 108 | 107 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 84 | 81 | 76 | 69 | 68 | 66 | 65 | 66 | 65 | 74 | 81 | 83 |
| Relative humidity (%) | 88 | 87 | 86 | 84 | 83 | 82 | 81 | 80 | 81 | 85 | 86 | 88 |
| Wind speed (km/h) | 19.7 | 19.0 | 17.5 | 16.5 | 15.1 | 14.1 | 13.6 | 13.4 | 14.4 | 17.0 | 18.8 | 19.9 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 84 | 81 | 76 | 69 | 68 | 66 |
| Relative humidity (%) | 88 | 87 | 86 | 84 | 83 | 82 |
| Wind speed (km/h) | 19.7 | 19.0 | 17.5 | 16.5 | 15.1 | 14.1 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 65 | 66 | 65 | 74 | 81 | 83 |
| Relative humidity (%) | 81 | 80 | 81 | 85 | 86 | 88 |
| Wind speed (km/h) | 13.6 | 13.4 | 14.4 | 17.0 | 18.8 | 19.9 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 29 years of daily observations at Quimper Pluguffan, a weather station, about 22 km from the city centre. The underlying daily records come from NOAA's global station network.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.