Click on a day for an hourly weather forecast
The temperatures in Saint Hilaire de Riez in August are comfortable with low of 17°C and and high up to 22°C.
You can expect about 3 to 8 days of rain in Saint Hilaire de Riez during the month of August. 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 Saint Hilaire de Riez in August 2026.
If you’re planning to visit Saint Hilaire de Riez in the near future, we highly recommend that you review the 14 day weather forecast for Saint Hilaire de Riez before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 9° / 6° | 9 | 22 | 1 | 137 mm | Bad | Saint Hilaire de Riez in January |
| February | 10° / 6° | 7 | 20 | 1 | 108 mm | Bad | Saint Hilaire de Riez in February |
| March | 12° / 7° | 6 | 25 | 0 | 82 mm | Ok | Saint Hilaire de Riez in March |
| April | 14° / 9° | 4 | 26 | 0 | 66 mm | Good | Saint Hilaire de Riez in April |
| May | 17° / 11° | 5 | 26 | 0 | 82 mm | Good | Saint Hilaire de Riez in May |
| June | 20° / 15° | 5 | 25 | 0 | 85 mm | Good | Saint Hilaire de Riez in June |
| July | 22° / 17° | 4 | 27 | 0 | 67 mm | Good | Saint Hilaire de Riez in July |
| August | 22° / 17° | 3 | 28 | 0 | 69 mm | Good | Saint Hilaire de Riez in August |
| September | 21° / 15° | 4 | 26 | 0 | 64 mm | Good | Saint Hilaire de Riez in September |
| October | 17° / 13° | 6 | 25 | 0 | 110 mm | Good | Saint Hilaire de Riez in October |
| November | 13° / 10° | 8 | 22 | 0 | 155 mm | Bad | Saint Hilaire de Riez in November |
| December | 11° / 8° | 9 | 21 | 0 | 150 mm | Bad | Saint Hilaire de Riez in December |