Sun, sea & sand

Concarneau weather in May

Temperature, sea and sunshine in May: long-term averages from 30 years of weather data, not a forecast.

22

Holiday weather in May

Poor

Best time to visit: July – August

What is the weather like in Concarneau in May?

In May, Concarneau is mild: daytime highs average 16 °C, and nights cool down to about 11 °C. The sea averages 13.8 °C – swimming is only for the hardy. The sun shines for around 7 hours a day. Rain is frequent, with about 11 rainy days and 58 mm in total. All in all, May is not an ideal month for a holiday in Concarneau.

May compared

How the weather changes from April to June. Tap a month to open it.

AprilAprMayMayJuneJun
Score202227
Day14°16°19°
Night9°11°14°
Sea12°14°16°
Sun6 h7 h7 h
Rain days11119

More details for May

Daylight
15 h 7 min06:38 – 21:45
UV index
7 · highclear sky, noon (estimate)All months
Muggy days
0 daysdew point 18 °C or moreAll months
Wind
26 km/haverage daily peakAll months
Cloud cover
61 %on averageAll months
Hot days
0 days30 °C or more
Time zone
UTC+2Europe/Paris

How the score comes together

  • Temperatureweight 35 %0 %
  • Seaweight 25 %0 %
  • Sunshineweight 20 %58 %
  • Few rainy daysweight 20 %54 %

Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.

What to pack in May

  • Sunscreen
  • Sunglasses & sun hat
  • A jumper for the evenings
  • Rain jacket or umbrella

Concarneau in May: quick answers

Is Concarneau hot in May?

No. In May, Concarneau is mild: daytime highs average 16 °C and nights drop to about 11 °C.

Can you swim in Concarneau in May?

Only if you don't mind cold water: in May the sea averages just 13.8 °C. Comfortable swimming temperatures are not reached at any time of year.

Does it rain much in Concarneau in May?

Rain is frequent, with about 11 rainy days and 58 mm in total.

Concarneau month by month

Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences