Concarneau in Summer
In summer (June, July and August), Concarneau sees average daytime highs around 20°C and overnight lows near 14°C, with 144 mm of rain over about 28 wet days across the season. It is the warmest season of the year and the driest season of the year.
Over the season highs climb from about 18°C in early June to 20°C by late August. The sky is clear or mostly clear about 26% of the time across summer, and the air most often feels comfortable.
Summer is Concarneau's best season of the year to visit on our travel score. For the whole year in context, see Concarneau's year-round climate.
- Avg daytime high
- 20°C
- warmest season of the year
- Avg overnight low
- 14°C
- Rainfall
- 144 mm
- 28 wet days
- Avg wind
- 14 km/h
- Travel score
- 6.3
- best season of the year
- Months
- Jun · Jul · Aug
Temperature in Concarneau in Summer
Over the season highs climb from about 18°C in early June to 20°C by late August.
A typical summer day in Concarneau reaches about 20°C and drops to 14°C overnight. The warmest of the three months is August, the coolest June.
Concarneau weather by month
How the three summer months (June, July and August) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 9° / 6° | 92 | 13.3 | 8.6 | 1.7 |
| Feb | 9° / 5° | 73 | 11.2 | 9.9 | 1.8 |
| Mar | 11° / 6° | 61 | 11.1 | 11.6 | 2.7 |
| Apr | 13° / 8° | 65 | 11.5 | 13.4 | 3.6 |
| May | 16° / 10° | 60 | 11.2 | 14.9 | 4.7 |
| Jun | 19° / 13° | 49 | 9 | 15.7 | 6.0 |
| Jul | 20° / 15° | 45 | 9.1 | 15.4 | 6.5 |
| Aug | 20° / 15° | 51 | 9.5 | 14.1 | 6.4 |
| Sep | 19° / 13° | 55 | 9 | 12.4 | 6.1 |
| Oct | 16° / 11° | 88 | 13.2 | 10.6 | 4.4 |
| Nov | 12° / 8° | 91 | 13.7 | 9.1 | 2.9 |
| Dec | 10° / 6° | 103 | 13.6 | 8.3 | 2.0 |
Cloud cover in Summer
The sky is clear or mostly clear about 26% of the time across summer.
Chance of precipitation in Summer
Concarneau gets around 144 mm of rain over 28 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels comfortable — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 14 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 15 h 30 min in early June to 13 h 18 min by late August. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 5.6 kWh/m².
Is summer a good time to visit Concarneau?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is a reasonable time to visit Concarneau for sightseeing.
What to pack for Concarneau in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Concarneau sees daytime highs around 20°C and nights near 14°C. Pack sun protection. Worth having: rain gear. About 28 days see rain.
Sea temperature near Concarneau in Summer
The nearest coast averages about 17°C across summer — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea offshore is warmest in August at about 18°C and coldest in February near 10°C.
The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 11 | 10 | 10 | 12 | 14 | 16 | 17 | 18 | 17 | 16 | 14 | 12 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Cool | Cool | Cool | Cool | Cool | Bracing | Bracing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 11 | Bracing |
| Feb | 10 | Bracing |
| Mar | 10 | Bracing |
| Apr | 12 | Bracing |
| May | 14 | Bracing |
| Jun | 16 | Cool |
| Jul | 17 | Cool |
| Aug | 18 | Cool |
| Sep | 17 | Cool |
| Oct | 16 | Cool |
| Nov | 14 | Bracing |
| Dec | 12 | Bracing |
UV index in Concarneau in Summer
Clear-sky midday UV across summer averages around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Concarneau peaks around August 12 at about 7 (high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near January 1 at about 1 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 1 | 1 | 3 | 5 | 6 | 7 | 6 | 7 | 5 | 3 | 1 | 1 |
| Level | Low | Low | Moderate | High | High | High | High | High | Moderate | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 1 | Low |
| Mar | 3 | Moderate |
| Apr | 5 | High |
| May | 6 | High |
| Jun | 7 | High |
| Jul | 6 | High |
| Aug | 7 | High |
| Sep | 5 | Moderate |
| Oct | 3 | Moderate |
| Nov | 1 | Low |
| Dec | 1 | Low |
Where is Concarneau?
Concarneau sits at 47.9°N, 3.9°W, 11 m above sea level, in France. The nearest listed city is Quimper, 19 km away.
Topography around Concarneau
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Concarneau.
Within 3 km, the terrain around Concarneau has only modest variations in elevation — a maximum elevation change of 84 m around an average of 22 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 170 m; within 80 km, significant variations in elevation — a maximum elevation change of 384 m.
The land around Concarneau is covered by water (40%) and trees (28%) within 3 km, water (34%) and trees (28%) within 16 km, and water (40%) and trees (25%) within 80 km.
France travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / E
- 230 V · 50 Hz
- Prices
- ≈ 77% of US
- price level, 2025
- GDP per capita
- $48,986
- 2025
- Happiness
- 6.6 / 10
- World Happiness, 2025
- Safe drinking water
- 100%
- of population, 2024
- Homicide rate
- 1.3
- per 100k, 2023
- Road deaths
- 5.1
- per 100k/yr, 2019
- Income group
- High
- World Bank
- English
- Moderate
- EF EPI 539
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Concarneau (47.8754°, -3.919°, elevation 11 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.