UV Index in Sant Joan, Spain

Last updated: June 2, 2025

Understanding the UV Index is crucial for residents and visitors in Sant Joan, Spain, where the warm Mediterranean climate brings plenty of sunshine. With the UV Index peaking at 10 during the hottest hours, awareness of these levels is essential for preventing sunburn and promoting skin health. The index highlights times when the sun's rays are strongest, allowing you to take informed precautions against harmful UV exposure. As you enjoy Sant Joan's sunny days, keep an eye on these numbers to protect your skin and enjoy the beautiful weather safely.

Hourly UV Index in Sant Joan

The UV Index throughout the day reveals a striking increase in sun intensity as the morning transitions into afternoon. Starting off at a mild 1 at 07:00 and 08:00, it gradually escalates to 2 by 09:00. The real surge occurs between 10:00 and 13:00, where values leap to a peak of 10 at 13:00, indicating a significant risk of harm from unprotected sun exposure. As the afternoon wanes, the index dips from 10 at 14:00 to 8 by 16:00, before finally settling back to a more manageable 3 by 18:00 and 2 by 19:00. Be sure to take precautions when the sun's rays are at their strongest!

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	7	high	25 min
12:00	9	very high	15 min
13:00	10	very high	15 min
14:00	10	very high	15 min
15:00	9	very high	15 min
16:00	8	very high	15 min
17:00	5	moderate	30 min
18:00	3	moderate	30 min
19:00	2	low	45 min

Monthly UV Index Trends in Sant Joan

Throughout the year, UV index levels fluctuate significantly, with notable increases during the warmer months. January and February experience a moderate UV index of 3 and 4, allowing for a 30-minute burn time under the sun. As the seasons transition into March and onward, the risk escalates, peaking in June and July with a maximum UV index of 10—classifying these months as high-risk. During these summer months, individuals are advised to limit sun exposure to just 15 minutes to prevent skin damage. The trend continues with August and September maintaining high levels (UV index of 9 and 8 respectively) before tapering off in October (UV index 6) and returning to moderate levels in November and December (UV index of 4 and 2). Residents and visitors should prioritize sun protection, especially during the peak months of April through September.

Monthly Maximum UV Index for Sant Joan, Spain

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Sant Joan. 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 Sant Joan, 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 Sant Joan UV Index with Other Spain Cities

The table above highlights how UV exposure in Sant Joan 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.

Sant Joan'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
Sant Joan	3	4	6	8	9	10	10	9	8	6	4	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
Sevilla UVI	3	5	7	9	10	11	10	10	9	7	4	3