Public holidays
1981, Portugal, Sintra
| # | Date | Public holiday |
|---|---|---|
| 1 | Thursday, 1 January 1981 | Ano Novo |
| 2 | Friday, 17 April 1981 | Sexta-Feira Santa |
| 3 | Saturday, 25 April 1981 | Dia da Liberdade |
| 4 | Friday, 1 May 1981 | Dia do Trabalhador |
| 5 | Wednesday, 10 June 1981 | Dia de Portugal |
| 6 | Thursday, 18 June 1981 | Corpo de Deus |
| 7 | Monday, 29 June 1981 | Dia de São Pedro |
| 8 | Saturday, 15 August 1981 | Assunção |
| 9 | Monday, 5 October 1981 | Implantação República |
| 10 | Sunday, 1 November 1981 | Todos os Santos |
| 11 | Tuesday, 1 December 1981 | Independência |
| 12 | Tuesday, 8 December 1981 | Imaculada Conceição |
| 13 | Friday, 25 December 1981 | Natal |