3 January – Three earthquakes struck the country: the first magnitude 3.7 quake at 1.25 am, 22 kilometres northeast of Mellizas de Coto Brus; the second 3.2 magnitude quake occurred at 2.23 pm, 38 kilometres southwest of Cambutal de Osa; and the third magnitude 3.6 tremor was at 4.53 pm, 5 kilometres southeast of Bajo Jenaro de Tarrazú de San José.
5 January – The annual Fiestas de Zapote(Spanish) which began on Christmas Day came to an end, but not before an improvisada was thrown into the air by a 500 kilogram bull, but she was unhurt. Between Christmas Day and New Year's Day alone, 135 improvisados required hospital treatment at an average cost to the Caja Costarricense de Seguro Social of ¢660,938 each.
January 15–27 – The annual Palmares Festival took place offering "bullfights" (which involve improvisados running from bulls), carnival rides, a famous tope (horse parade) lasting for hours and involving thousands of riders on 16 January, concerts, a carnival parade with bands and costumed salsa, merengue, cumbia, and mambo dancing troupes, lots of drinking, and a closing fireworks display. About a million people or roughly one fifth of the population were expected to attend.
23 January – Twelve cantons banned the sale of alcohol on the day of the forthcoming elections on 2 February in accordance with Article 26 of Law 9047. The cantons were Alajuelita, Aserrí, Athens, Brokers, Cartago, Dota, Guácimo, Los Chiles, Poas, San Ramon, and Upala. San José imposed an even longer ban, from 1 to 3 February. Other cantons decided against the prohibition: Buenos Aires, Desamparados, Garabito, Golfito, La Cruz, León Cortes, Naranjo, Parrita, Talamanca, Tibás, and Turrialba; while yet others remained undecided. Nevertheless, San José decided not to enforce its own ban because placing closure notices on bars on a previous occasion was tedious and cost ₡6 million.
A magnitude 4.2 earthquake occurred at 12.35pm at a depth of 21.6 kilometres, 33 km west of Jacó. Minutes earlier, at 12.07 pm, a magnitude 3.6 earthquake was felt 9 km west of Drake de Osa, also in the province of Puntarenas, at a depth of 2.7 km.
During her visit to Havana, President Chinchilla avoided direct criticism of Cuba but, during a speech in the presence of Raúl Castro, called on governments to be more open to initiatives by civil society. She also referred to the commitment of the Community of Latin American and Caribbean States to democracy and human rights. Meanwhile, her Director of Foreign Policy, Linyi Baidal, met with Cuban dissidents at the Costa Rican embassy in Havana. In another pleasing gesture to Cuban opposition leaders, Chinchilla spoke of the forthcoming "free and competitive" general election in Costa Rica.
At a service including religious figures gathered at the Metropolitan Cathedral in San José, the Bishop of Cartago, Francisco Ulloa, reminded voters in the forthcoming election to support candidates who were anti-abortion and anti-gay marriage. Juan Luis Calvo, president of the Evangelical Alliance called on the government to rethink guidelines on sexuality published by the Ministry of Public Education.
4 February – A manual recount began of votes cast in the presidential election because the difference between the two leading candidates did not exceed two percent. The latest count showed Luis Guillermo Solís with 30.95 percent of the vote, and Johnny Araya having 29.59 percent. By law, the ballot count must be completed within 30 days of the election.
5 February – Award-winning investigative editor and pioneer of data journalism at La Nación, Giannina Segnini, resigned after 20 years working at the newspaper. She said that opportunities to conduct independent journalism had been reduced consistently in the past two years, while editorial decisions she described as unjournalistic made it impossible for her to continue.
6 February – The new school year began with children returning from holidays on the 6th (Wednesday) and 10th (Monday) of February. The school year will be 200 days long (41 teaching weeks) until 11 December, with a break from 1 to 12 July.
8–10 February – Laura Chinchilla attended the final international summit of her presidency when she took part in the eighth summit of the Pacific Alliance in Cartagena de Indias, Colombia. She signed a protocol at a plenary session on the 10th finalising the process of Costa Rica's accession to full membership of the Alliance.
14–23 February – The annual Puntarenas Carnival was celebrated, consisting of concerts, street dancing, band and horse parades, a national beach volleyball competition, cimarrona band and clown performances, bullfights, street theatre, a fashion show, illuminations, and fireworks.
17 February – The Tribunal Supremo de Elecciones announced the final result in the first round vote of the presidential election held on February 2: Luis Guillermo Solís won 30.6% of the vote while Johnny Araya won 29.7%, with 19,232 votes separating them. José María Villata received 17.24%; Otto Guevara won 11.33%; and Rodolfo Piza gained 6.01%.
22 February–2 March – The Fiestas Cívicas Liberia took place, an annual festival in Liberia, including such diverse activities as horseriders parades, parades of bulls, bull riding, concerts, dances, free fairground rides for poor children and residents of old peoples' homes, drama performances, and fireworks displays.
25 February – Editor-in-Chief of La Nación, Yanancy Noguera, resigned after 24 years working at the newspaper. She said that recent "integrated newsroom" work flow changes had reduced her role and relevance, and introduced differences of vision between her and corporate management.
25 February – A phreatic explosion occurred at Poás Volcano sending a column of steam, water, ash, and small rocks 300 metres into the air. It occurred when magma reacted with water in the lake inside the crater. A spokeswoman for Observatorio Vulcanológico y Sismológico de Costa Rica said the activity was normal although the height of the column was unusual.
5 March – A candidate in the presidential election second round, Johnny Araya Monge, withdrew from his election campaign and was designated leader of his political party by Partido Liberación Nacional deputies, to form an opposition to a new government led by Partido Acción Ciudadana. Araya's withdrawal followed the publication of an opinion survey by Semanario Universidad showing his opponent Luis Guillermo Solís leading the poll at 64.4 percent, with Araya trailing at a distant 20.9 percent. The political campaign continued as mandated by the constitution, but without electoral activity by Araya.
5 March – Two earthquakes in the Nicoya Peninsula were felt in much of the country. The first was a magnitude 4.8 earthquake, at 3.15 pm, eight kilometres west of Sámara. The second one was a magnitude 4.3 earthquake, at 4.57 pm, also west of Sámara.
9 March – National Oxherds Day (Día Nacional del Boyero).
30 March – The presidential election runoff campaign ended a week before polling day with leading candidate Luis Guillermo Solís of the Citizen Action Party holding a rally at the Plaza de Guarantías Sociales in San José to encourage his supporters to get out the vote. This Sunday was the final day when political parties could distribute or pay for election advertising.
2 April – A strong earthquake was felt throughout much of the country at 10.16 am. The University of Costa Rica's National Seismological Network described it as a magnitude 5.7 quake with an epicentre 100 kilometres south of David in Panama, while the National University's Volcanological and Seismological Observatory of Costa Rica assessed it as a magnitude 6.3 quake at a depth of 15.3 kilometres under the Pacific Ocean.
6 April – First Sunday in April: In accordance with Article 138 of the constitution, a second round of voting took place in the presidential election, only the second time a run-off has occurred in the nation's history. The first was in 2002. Voting took place from 6am to 6pm, and turnout was low, at around 57 percent.Luis Guillermo Solís Rivera was elected in a landslide, winning 77.88 percent of the vote.
San José was cut off from the Caribbean Sea for more than twelve hours following a landslide at 8pm at the 39 kilometre mark on Route 32. Forty drivers were trapped for more than 12 hours and a traffic jam extended all the way back to the capital. The route was finally opened to traffic at noon the following day.
23 May – The annual Day of the Farmer (Día del Agricultor) was celebrated, having been postponed by the government's Department of Agriculture from 15 May, the traditional date since 1968, which is the feast day of Isidore the Farmer (Isidro Labrador), the Spanish patron saint of farmers.
10 December – Schoolchildren celebrate the Festival of Joy (Fiesta de la Alegría) and the closure of schools for the holidays until 10 February by playing, dancing, and bursting piñatas.
13 December – The 19th annual Festival of Lights (Festival de la Luz) marks the start of Christmas in San José on the second Saturday of December with a parade of floats, bands, and fireworks from La Sabana to Plaza de la Democracia.
^Ley de Regulación y Comercialización de bebidas con contenido alcohólico Sistema Costarricense de Información Jurídica. Retrieved: 2014-01-24. Quote: "Artículo 26: Cada municipalidad tendrá la facultad de regular la comercialización de bebidas alcohólicas y consumo de licor, los días que se celebren actos cívicos, desfiles u otras actividades cantonales, en la ruta asignada, y podrá delimitar el radio de acción." (Spanish)