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Sea temperatures, water sports and vacation activities near San Marcos, Costa Rica

Water temperatures throughout the year and general information about San Marcos...

San Marcos is a coastal city in Costa Rica. It is a quite little city close to the ocean with a population of 4255 people. The water temperature around San Marcos is nearly steady year round. The temperature ranges from 26.2°C (79.1°F) in March up to 29.5°C (85.1°F) in the month of September, as illustrated below. The average water temperature throughout the year is 28°C (83°F) and the best time for water activities is early fall, since San Marcos is located in the northern hemisphere.

Hover over the bars to see temperature for each month in Celsius and Fahrenheit.

What is the current water temperature near San Marcos?

The current water temperature in the month of September near San Marcos is about:
30°C (85°F)

Are there surf spots close by?

There are not too many surf spots in proximity to San Marcos. A good spot nearby is Playitas, which is roughly 20.6km (12.8miles) away from San Marcos. Click here for directions and to check out more information on Playitas and its water temperature. Other surfspots near San Marcos are Manuel Antonio, which is ca 20.6km (12.8miles) away, and Playa Bejuca, located ca 29km (18miles) from San Marcos.

Are there beautiful beaches close by?

No, there are not too many beaches close to San Marcos. The next good one is Manuel Antonio National Park, which is just 20.1km (12.5miles) away from San Marcos. Another nice beach near San Marcos is Santa Teresa, 24.8km (15.4miles) away.

What wetsuit do I need for San Marcos?

The average water temperature around San Marcos is extremely warm, around 28°C (83°F), with no significant variations throughout the year. The temperatures in June, July, and August are very similar to sea temperatures in December and January. That is why a wetsuit is usually not needed for swimming, surfing, snorkelling, or diving around San Marcos. Nevertheless, you might want to bring a 1-2mm wetsuit top or a rashguard for abnormal windy conditions and for UV protection, especially when spending multiple hours in the sun each day. The sun radiation around San Marcos can be remarkably strong.

How is the scuba diving and fishing close to San Marcos?

Diving and fishing conditions change very little year round. The waters are mostly tropical, reaching temperatures between 25 and 30°C (76-85°F). The following fish like to hang out in waters of this temperature range: Bonefish, Permit, Red Drum, and Tarpon.

Directions to San Marcos: How do I get there?

Please follow the directions in the map below.

Some fun facts about San Marcos...

Do you know what the the city Almancil in Portugal, the city Arena 1ra Seccion in Mexico, and the city Auditore in Italy have in common with San Marcos? Click on the links to find out...