Click on a day for an hourly weather forecast
The temperatures in Douarnenez in May are quite cold with temperatures between 9°C and 16°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Douarnenez 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 Douarnenez in May 2026.
If you’re planning to visit Douarnenez in the near future, we highly recommend that you review the 14 day weather forecast for Douarnenez before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 10° / 6° | 11 | 19 | 1 | 167 mm | Bad | Douarnenez in January |
| February | 10° / 5° | 9 | 18 | 1 | 152 mm | Bad | Douarnenez in February |
| March | 12° / 6° | 6 | 24 | 0 | 91 mm | Ok | Douarnenez in March |
| April | 14° / 7° | 5 | 25 | 0 | 80 mm | Good | Douarnenez in April |
| May | 16° / 9° | 4 | 27 | 0 | 78 mm | Good | Douarnenez in May |
| June | 19° / 12° | 5 | 25 | 0 | 82 mm | Good | Douarnenez in June |
| July | 21° / 14° | 5 | 26 | 0 | 85 mm | Good | Douarnenez in July |
| August | 21° / 14° | 5 | 26 | 0 | 85 mm | Good | Douarnenez in August |
| September | 20° / 13° | 3 | 27 | 0 | 60 mm | Good | Douarnenez in September |
| October | 16° / 11° | 7 | 24 | 0 | 139 mm | Ok | Douarnenez in October |
| November | 13° / 9° | 9 | 21 | 0 | 172 mm | Bad | Douarnenez in November |
| December | 11° / 7° | 10 | 20 | 1 | 189 mm | Bad | Douarnenez in December |