UV Index in San Jose, Spain

Last updated: June 2, 2025

Understanding the UV Index in San Jose, Spain is crucial for anyone looking to enjoy the sun safely. With the region's BSk climate, characterized by warm summers and moderate sunlight, being aware of UV levels can help prevent sunburn and protect long-term skin health. At midday, the UV Index can reach a peak of 11, indicating a very high risk of harm from unprotected sun exposure. By staying informed about fluctuating UV levels throughout the day, you can take proactive steps to shield yourself from harmful rays, ensuring a safer and more enjoyable outdoor experience.

Hourly UV Index in San Jose

The UV Index data reveals a striking pattern throughout the day, starting low in the early morning with a maximum of 1 at 07:00 and 08:00. As the sun climbs higher, the index surges past 2 at 09:00, reaching 4 by 10:00. Midday marks the peak, with the index soaring to an impressive 11 at 14:00—a reminder to seek shade and protect your skin. Gradually, the intensity subsides, dwindling to 9 at 16:00, then dropping to 2 by 19:00. This data underscores the importance of being UV-aware, especially during those high noon hours when the sun's rays are strongest. Stay safe and enjoy the sunshine wisely!

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
Time	UVI	Category	Time to Burn
07:00	1	low	45 min
08:00	1	low	45 min
09:00	2	low	45 min
10:00	4	moderate	30 min
11:00	6	high	25 min
12:00	9	very high	15 min
13:00	10	very high	15 min
14:00	11	extreme	10 min
15:00	10	very high	15 min
16:00	9	very high	15 min
17:00	6	high	25 min
18:00	4	moderate	30 min
19:00	2	low	45 min

Monthly UV Index Trends in San Jose

Throughout the year, UV levels change significantly, influencing sun exposure safety for visitors and residents. High-risk months occur from April to August, with particularly intense UV Index levels peaking at 11 in June and July, categorized as extreme. During these months, the recommended burn time drops to just 10 minutes, underscoring the need for vigilant sun protection. In contrast, the UV Index remains at more moderate levels (3 to 5) during the winter months of January, February, and December, allowing for longer exposure times of up to 30 minutes without burning. To ensure safety, it is advisable for everyone to be mindful of UV levels, especially during high-risk months, by wearing sunblock, protective clothing, and seeking shade whenever possible.

Monthly Maximum UV Index for San Jose, Spain

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in San Jose. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.

Data source: Statistical UV Index data for San Jose, based on information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

Compare San Jose UV Index with Other Spain Cities

The table above highlights how UV exposure in San Jose compares to other major locations across Spain. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.

San Jose's solar exposure compared to other cities in Spain. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Barcelona UVI	3	4	5	7	8	10	10	9	7	6	3	2
Zaragoza UVI	3	4	6	8	9	11	11	9	8	6	3	2
Valencia UVI	3	4	6	8	9	11	10	9	8	6	4	3
Madrid UVI	3	4	6	8	10	11	11	9	8	6	4	3
San Jose	3	5	6	8	10	11	11	9	8	7	4	3
Sevilla UVI	3	5	7	9	10	11	10	10	9	7	4	3