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UV Index in San José

UV index


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Today's UV index in San José, Costa Rica Costa Rica will be up to 12.2, indicating a extreme level of sun exposure for the average person. Check the annual sun radiation in the city and our tips for today to make sure you're safe in the sun.


Today's tips

UV index at 12.2 in San José means extreme risk; limit outdoor time from 10 a.m. to 4 p.m., use shade, protective clothing, SPF 30+ sunscreen, and sunglasses; watch for bright surfaces like water and snow increasing UV exposure.

San José's UV Index

The UV index in San José, Costa Rica, typically ranges from low to very high throughout the year, with levels peaking from December to April.

Weather Seasons

UV index

San José has two main seasons: the dry season, which runs from December to April, and the wet season, which lasts from May to November. However, rainfall can still occur during the dry season, and occasional showers can happen in the wet season.

San José's Climate

Compared to its region and neighboring countries, San José generally experiences milder temperatures and more rainfall. While much of Central America can be extremely hot and dry, San José's elevation provides a more temperate climate, with average temperatures ranging from 60°F to 80°F (15°C to 27°C) year-round.

Annual Sun Radiation

The chart below displays the average Shortwave Radiation Sum (MJ/m²) for each month of the last year in San José. It's designed to provide you with a better understanding of the yearly weather and sun exposure.


* This page's content about the UV index in San José (Costa Rica) is for educational and informational purposes only. The developers and data providers are not liable for the accuracy, reliability, or availability of the information. The information is not a substitute for professional medical advice, and the developers and data providers are not medical professionals. Seek advice from a qualified health provider for any medical concerns, and do not disregard medical advice or delay seeking it based on the information provided on this site.