Click on a day for an hourly weather forecast
The temperatures in Santiago de Compostela in August are comfortable with low of 13°C and and high up to 25°C.
You can expect about 3 to 8 days of rain in Santiago de Compostela 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 Santiago de Compostela in August 2025.
If you’re planning to visit Santiago de Compostela in the near future, we highly recommend that you review the 14 day weather forecast for Santiago de Compostela before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 11° / 4° | 12 | 18 | 1 | 264 mm | Bad | Santiago de Compostela in January |
| February | 12° / 4° | 9 | 19 | 1 | 211 mm | Bad | Santiago de Compostela in February |
| March | 14° / 5° | 9 | 22 | 0 | 161 mm | Ok | Santiago de Compostela in March |
| April | 16° / 6° | 8 | 22 | 0 | 119 mm | Ok | Santiago de Compostela in April |
| May | 20° / 9° | 6 | 25 | 0 | 95 mm | Good | Santiago de Compostela in May |
| June | 22° / 11° | 6 | 24 | 0 | 107 mm | Good | Santiago de Compostela in June |
| July | 24° / 13° | 3 | 28 | 0 | 48 mm | Perfect | Santiago de Compostela in July |
| August | 25° / 13° | 3 | 28 | 0 | 47 mm | Perfect | Santiago de Compostela in August |
| September | 23° / 12° | 3 | 27 | 0 | 51 mm | Perfect | Santiago de Compostela in September |
| October | 19° / 10° | 7 | 24 | 0 | 183 mm | Ok | Santiago de Compostela in October |
| November | 13° / 7° | 10 | 20 | 0 | 225 mm | Bad | Santiago de Compostela in November |
| December | 12° / 5° | 10 | 20 | 0 | 213 mm | Bad | Santiago de Compostela in December |