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UV Index in San José, CR

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Today's UV index in San José, Costa Rica Costa Rica will be up to 14.9, indicating extreme risk of harm from the sun's UV rays for the average person. Check our tips for today to make sure you're safe in the sun.

 

Today's tips

UV index at 14.9 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 Weather

Read more here about the climate and sun exposure in and around San José.

UV Index in San José

The UV index in San José, Costa Rica, is generally high throughout the year, with an average of 10 (extreme) during the peak summer months and around 6-7 (high) during the rest of the year. It is important to protect your skin by using sunscreen, wearing hats, and seeking shade, especially during the hottest hours of the day between 10 am and 4 pm.

Weather Seasons

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San José has a tropical climate with two main seasons: the dry season and the rainy season. The dry season lasts from December to April and is characterized by warm temperatures, with average highs around 29 °C (84 °F) and lows around 18 °C (64 °F). The rainy season, from May to November, brings more precipitation and slightly cooler temperatures, with average highs around 26 °C (79 °F) and lows around 17 °C (63 °F).

San José's Climate

Compared to other regions in Costa Rica, San José receives less sunshine due to its higher elevation. However, it still experiences a considerable amount of sun exposure, especially during the dry season when the days are generally sunny. It is important to take sun protection measures, even during the rainy season, as UV rays can still penetrate through clouds and cause harm to the skin.

Annual Sun Radiation

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

Disclaimer

* 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.