Click on a day for an hourly weather forecast
The temperatures in Concarneau in May are usually low and can range between 11°C and 15°C.
You can expect about 3 to 8 days of rain in Concarneau during the month of May. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Concarneau in May 2026.
If you’re planning to visit Concarneau in the near future, we highly recommend that you review the 14 day weather forecast for Concarneau before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 10° / 7° | 9 | 21 | 1 | 135 mm | Bad | Concarneau in January |
| February | 10° / 7° | 8 | 19 | 1 | 126 mm | Bad | Concarneau in February |
| March | 11° / 7° | 6 | 25 | 0 | 80 mm | Ok | Concarneau in March |
| April | 13° / 9° | 4 | 26 | 0 | 72 mm | Ok | Concarneau in April |
| May | 15° / 11° | 4 | 27 | 0 | 70 mm | Good | Concarneau in May |
| June | 18° / 14° | 5 | 25 | 0 | 76 mm | Good | Concarneau in June |
| July | 20° / 16° | 5 | 26 | 0 | 64 mm | Good | Concarneau in July |
| August | 20° / 16° | 4 | 27 | 0 | 72 mm | Good | Concarneau in August |
| September | 19° / 14° | 3 | 27 | 0 | 52 mm | Good | Concarneau in September |
| October | 16° / 13° | 7 | 24 | 0 | 141 mm | Ok | Concarneau in October |
| November | 13° / 10° | 9 | 21 | 0 | 152 mm | Bad | Concarneau in November |
| December | 11° / 8° | 9 | 21 | 1 | 150 mm | Bad | Concarneau in December |