| Wed, December 31 | New Year's Day | National Holiday |
| Wed, December 31 | Carnival/Shrove Tuesday | Optional Holiday |
| Wed, December 31 | March Equinox | Season |
| Wed, December 31 | Daylight Saving Time starts | Clock Change/daylight Saving Time |
| Wed, December 31 | Good Friday | National Holiday |
| Wed, December 31 | Easter Day | National Holiday |
| Wed, December 31 | Liberty Day | National Holiday |
| Wed, December 31 | Labor Day / May Day | National Holiday |
| Wed, December 31 | Portugal Day | National Holiday |
| Wed, December 31 | Corpus Christi | National Holiday |
| Wed, December 31 | June Solstice | Season |
| Wed, December 31 | Assumption of Mary | National Holiday |
| Wed, December 31 | September Equinox | Season |
| Wed, December 31 | Republic Implantation | National Holiday |
| Wed, December 31 | Daylight Saving Time ends | Clock Change/daylight Saving Time |
| Wed, December 31 | All Saints' Day | National Holiday |
| Wed, December 31 | Restoration of Independence | National Holiday |
| Wed, December 31 | Feast of the Immaculate Conception | National Holiday |
| Wed, December 31 | December Solstice | Season |
 |
| Wed, December 31 | Christmas Eve | Observance |
| Wed, December 31 | Christmas Day | National Holiday |
| Wed, December 31 | New Year's Eve | Observance |
| Tue, January 1 | New Year's Day | National Holiday |
| Tue, March 5 | Carnival/Shrove Tuesday | Optional Holiday |
| Wed, March 20 | March equinox | Season |
| Sun, March 31 | Daylight Saving Time starts | Clock Change/daylight Saving Time |
| Fri, April 19 | Good Friday | National Holiday |
| Sun, April 21 | Easter Day | National Holiday |
| Thu, April 25 | Liberty Day | National Holiday |
| Wed, May 1 | Labor Day / May Day | National Holiday |
| Mon, June 10 | Portugal Day | National Holiday |
| Thu, June 20 | Corpus Christi | National Holiday |
| Fri, June 21 | June Solstice | Season |
| Thu, August 15 | Assumption of Mary | National Holiday |
| Mon, September 23 | September equinox | Season |
| Sat, October 5 | Republic Implantation | National Holiday |
| Sun, October 27 | Daylight Saving Time ends | Clock Change/daylight Saving Time |
| Fri, November 1 | All Saints' Day | National Holiday |
| Sun, December 1 | Restoration of Independence | National Holiday |
| Sun, December 8 | Feast of the Immaculate Conception | National Holiday |
| Sun, December 22 | December Solstice | Season |
| Tue, December 24 | Christmas Eve | Observance |
| Wed, December 25 | Christmas Day | National Holiday |
| Tue, December 31 | New Year's Eve | Observance |
