| 1 Jan, 2023 (Sun) | New Year | Public Holiday |
| 2 Jan, 2023 (Mon) | Day off for New Year | Public Holiday |
| 4 Jan, 2023 (Wed) | Day of King Amador | Public Holiday |
| 3 Feb, 2023 (Fri) | Commemoration of the Batepá Massacre | Public Holiday |
| 21 Mar, 2023 (Tue) | March Equinox | Season |
| 1 May, 2023 (Mon) | Labour Day | Public Holiday |
| 21 Jun, 2023 (Wed) | June Solstice | Season |
| 12 Jul, 2023 (Wed) | Independence Day | Public Holiday |
| 6 Sep, 2023 (Wed) | Armed Forces' Day | Public Holiday |
| 23 Sep, 2023 (Sat) | September Equinox | Season |
| 29 Sep, 2023 (Fri) | Day off for Nationalization of the Roças | Public Holiday |
| 30 Sep, 2023 (Sat) | Nationalization of the Roças | Public Holiday |
| 21 Dec, 2023 (Thu) | São Tomé Day | Public Holiday |
| 22 Dec, 2023 (Fri) | December Solstice | Season |
| 25 Dec, 2023 (Mon) | Christmas Day | Public Holiday |
