2025 Marathon San Jose Costa Rica

The 2025 Marathon San José Costa Rica will take place on Sunday, December 7th, in San José, the capital city of Costa Rica. This 29th edition of the event will start and finish at the Estadio Nacional (National Stadium) located on Calle 68 in the Nunciatura district. In early December, San José experiences typical dry season weather with daytime temperatures ranging between 24-28°C (75-82°F) and cooler mornings around 15-18°C (59-64°F). Participants can expect mostly clear skies with low humidity, making it favorable running conditions. The course features a rolling terrain on closed roads that winds through San José's historic downtown, showcasing emblematic buildings and cultural landmarks before returning to the stadium. This internationally certified event welcomes approximately 3,000 athletes across multiple distance categories and is designed to provide both local and international runners with a professional, well-organized racing experience.

What distances and race categories are available?

• →5K race — 5.00 km
• →10K race — 10.00 km
• →Half Marathon — 21.10 km
• →Marathon — 42.20 km
• →Marathon Relay (4-person team) — 42.20 km total distance

What are the registration fees for each distance?

• →5K — €25 (or ₡15,000)
• →10K — €33 (or ₡20,000)
• →Half Marathon — €42 (or ₡25,000)
• →Marathon — €50 (or ₡30,000)
• →Marathon Relay (4 members) — €125 (or ₡75,000)

When is the registration deadline?

Registration closes on December 4th, 2025, which is three days before the race. The event has a limited capacity of 3,000 athletes, so registration is available on a first-come, first-served basis until the quota is reached or the deadline passes, whichever comes first.

What certifications and approvals does this event have?

The Marathon San José Costa Rica is AIMS (Association of International Marathons and Distance Races) certified, ensuring it meets international standards for distance accuracy, course measurement, and race organization. The event is organized by the Asociación Marathón Internacional Costa Rica, a non-profit association founded in 1993 and incorporated into FECOA (Costa Rican Sports Federation).

What is the course profile and terrain like?

The marathon features a rolling terrain on paved road surfaces throughout San José. The course is run on closed roads, meaning traffic is controlled for participant safety. The route showcases the city's emblematic and historical buildings, providing runners with views of San José's cultural heritage. All distance categories start and finish at the Estadio Nacional, with the course potentially incorporating multiple loops depending on the distance.

What makes this event environmentally and family-friendly?

The Marathon San José Costa Rica is designed as an eco-friendly event that promotes sustainable practices. Beyond the competitive racing categories, the event includes a fun run component and kids' race options, making it accessible and welcoming for families. This approach transforms the marathon into both a sporting competition and a community celebration that encourages participation across all age groups and fitness levels.

What can participants expect regarding the event location and course highlights?

The event takes place entirely in San José, Costa Rica's capital city, with both the start and finish at the prestigious Estadio Nacional on Calle 68 in the Nunciatura district. Runners will experience a tour through the heart of the city, passing iconic and historically significant buildings that represent Costa Rica's cultural identity. The closed-road course ensures a safe running environment while allowing participants to explore San José's downtown area during the race.

What weather conditions should participants prepare for?

December 7th falls during Costa Rica's dry season, typically characterized by pleasant running conditions. Expect daytime temperatures between 24-28°C (75-82°F) with cooler early morning temperatures around 15-18°C (59-64°F). Humidity levels are generally low during this period, and rainfall is minimal. Runners should prepare for sunny conditions and consider sun protection, though the morning start time may provide cooler running temperatures during the initial portions of the race.

What type of event organization and experience can participants expect?

As an internationally certified event with over 30 years of history, participants can expect professional race organization meeting international standards. The event accommodates 1,000 to 4,999 participants, creating an atmosphere that is neither too small nor overwhelmingly large. The closed-road course, multiple distance options, relay category, and inclusion of fun runs demonstrate a well-structured event designed to serve both serious competitive runners and recreational participants seeking a quality racing experience.