Day Month Celebration 14 Febrero San Valentin Day 7 Febrero School Classes Beginning Day 8 March Women International Day 8 March National Day of women school servant 21 March Elimination of racial discrimination International day 30 March Sport National Day 11 April Rivas Battle 14 April Panamerican Day 15 April Boundary Treats between Costa Rica and Nicaragua 18-22 April National Cooperative week 19 April Aborigen Costarrican Day 23 April Book Day 27 April Cooperative day 1 May Job International Day 9-13 May Nutrition National Week 15 May Costarican Farmer day 20 May National Caretaker Day 23-27 May Natural Resources Conservation National week 27 May Boundary Treats between Costa Rica and Panama 5 June Environment World day 6-10 June Peace week 11 June National Anthem music 13-17 June Educational Orientation National week 15 June Tree Day 18 June Aimed Day 19-25 June Vial Security National week 20-24 June Tooth and Mouth Health National Week 21 June Music World day 26 June Drugs prevention International Day 25 July Annex Politic Team of Nicoya to Guanacaste 1 August Science and Technology National Day 2 August Día de Nuestra Señora de los Ángeles, Patrona de Costa Rica 15 August Mother's Day 15-19 August Familiar integration National Week 24 August Costarican Nationals Parks day 27 August Community Active Day 31 August Republic Fundation Anniversary 31 August Black Day 8 September Literacy National Day 9 September Childs day 12 September Civic week 15 September Costarican Independence Day 27 September Tourism World day 1 October Moral Values National day 4 October Teacher World day 6 October Old Age Day 12 October Cultures Day 16 October Feeding World Day 22 October Social Security Costarican National Day 7 November Costarican Democracy Day 7 November Politic Constitution Day 25 November No Violence against women day 15 Diciembre School End classes day