Click on a day for an hourly weather forecast
The temperatures in Marennes in September are comfortable with low of 14°C and and high up to 24°C.
You can expect about 3 to 8 days of rain in Marennes during the month of September. 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 Marennes in September 2025.
If you’re planning to visit Marennes in the near future, we highly recommend that you review the 14 day weather forecast for Marennes before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 9° / 4° | 8 | 22 | 1 | 107 mm | Bad | Marennes in January |
| February | 10° / 4° | 7 | 21 | 1 | 79 mm | Bad | Marennes in February |
| March | 14° / 6° | 5 | 25 | 0 | 73 mm | Good | Marennes in March |
| April | 16° / 7° | 5 | 25 | 0 | 73 mm | Good | Marennes in April |
| May | 19° / 10° | 6 | 25 | 0 | 95 mm | Good | Marennes in May |
| June | 23° / 14° | 5 | 25 | 0 | 98 mm | Perfect | Marennes in June |
| July | 25° / 16° | 4 | 27 | 0 | 55 mm | Perfect | Marennes in July |
| August | 26° / 16° | 3 | 28 | 0 | 54 mm | Perfect | Marennes in August |
| September | 24° / 14° | 3 | 27 | 0 | 59 mm | Perfect | Marennes in September |
| October | 19° / 11° | 5 | 26 | 0 | 83 mm | Good | Marennes in October |
| November | 13° / 8° | 7 | 23 | 0 | 131 mm | Bad | Marennes in November |
| December | 11° / 6° | 8 | 23 | 1 | 118 mm | Bad | Marennes in December |