Public holidays
1663, España, País Vasco
| # | Date | Public holiday |
|---|---|---|
| 1 | Monday, 1 January 1663 | New Year's Day |
| 2 | Saturday, 6 January 1663 | Epiphany of the Lord |
| 3 | Monday, 19 March 1663 | Saint Joseph's Day |
| 4 | Thursday, 22 March 1663 | Maundy Thursday |
| 5 | Friday, 23 March 1663 | Good Friday |
| 6 | Monday, 26 March 1663 | Easter Monday |
| 7 | Tuesday, 1 May 1663 | Labour Day |
| 8 | Wednesday, 25 July 1663 | Saint James the Apostle |
| 9 | Wednesday, 15 August 1663 | Assumption of the Virgin Mary |
| 10 | Thursday, 1 November 1663 | All Saints' Day |
| 11 | Thursday, 6 December 1663 | Spanish Constitution Day |
| 12 | Saturday, 8 December 1663 | Immaculate Conception |
| 13 | Tuesday, 25 December 1663 | Nativity of the Lord |