UV Index in Castellar del Riu, Spain

Last updated: June 2, 2025

Understanding the UV Index is crucial for residents and visitors of Castellar del Riu, Spain, where the blend of Mediterranean and oceanic climates can lead to varying UV exposure levels throughout the day. By being aware of the UV levels, you can effectively prevent sunburn and protect your skin health, ensuring enjoyable time spent outdoors. With peak UV readings reaching as high as 10 between 12:00 PM and 3:00 PM, it’s essential to stay informed about the daily UV risks and take appropriate precautions to enjoy the sun safely in this beautiful region.

Hourly UV Index in Castellar del Riu

The UV Index throughout the day showcases a notable progression, starting low at 1 during the early hours of 07:00 and 08:00. As the sun climbs higher, the index begins to rise, peaking dramatically at 10 between 13:00 and 15:00—a time when sun safety is crucial. The early afternoon offers the highest risk with a blistering 9 at 12:00, followed by a sustained peak of 10. As the day wanes, UV levels gradually decline to 6 at 17:00 and drop further to a gentle 2 by 19:00. This pattern underscores the importance of sun protection during peak hours, particularly from 11:00 to 15:00 when skin is most vulnerable to UV damage. Stay safe, be sun-smart!

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	10	very high	15 min
16:00	8	very high	15 min
17:00	6	high	25 min
18:00	3	moderate	30 min
19:00	2	low	45 min

Monthly UV Index Trends in Castellar del Riu

Throughout the year, UV exposure varies significantly, with notable peaks between March and October. The high-risk months are April to August, where the UV Index consistently reaches very high levels of 8 to 10 and the burn time reduces to just 15 minutes. In contrast, the low-risk months of November and December see UV Index values fall to 3 and 2, respectively, allowing for safe exposure times of up to 30 and 45 minutes. Residents and visitors are advised to take extra precautions during the high-risk months by seeking shade, wearing protective clothing, and applying sunscreen regularly to mitigate the increased risk of sunburn and skin damage.

Monthly Maximum UV Index for Castellar del Riu, Spain

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

The table above highlights how UV exposure in Castellar del Riu 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.

Castellar del Riu'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
Castellar del Riu	3	4	6	8	9	10	10	9	8	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
Sevilla UVI	3	5	7	9	10	11	10	10	9	7	4	3