Average temperatures in Santander throughout March is 10. With the average high being 15 and low being 9 degrees celsius. We have put some more detail below here:
| Month | Degrees Celsius |
|---|---|
| Temperature | 10 |
| High Temperature | 15 |
| Low Temperature | 9 |
| Sunshine Per Day | 6 |
Useful Links: Santander Weather: Average Weather & Yearly Climate