UV Index in Caldas da Rainha, Portugal

Last updated: May 3, 2025

Understanding the UV Index in Caldas da Rainha, Portugal, is crucial for protecting your skin and overall health under the sun. With peak UV levels reaching as high as 10 during the midday hours in this Csb climate zone, awareness of UV exposure can significantly reduce your risk of sunburn and long-term skin damage. The sunny characteristics of Caldas da Rainha mean that even on seemingly mild days, the potential for intense UV radiation exists. Stay informed about local UV levels to enjoy the beautiful Portuguese sun safely!

Hourly UV Index in Caldas da Rainha

As the sun rises, the UV Index begins its gentle ascent, starting at 1 at 07:00. By 09:00, it climbs to 3, hinting at the day's potential for sun exposure. The heat peaks around 12:00, reaching a blistering 9, and hits its maximum at 13:00 and 14:00, both at a high of 10—a critical time for sun safety. As the afternoon transitions to evening, the UV Index gradually dips; by 18:00, it's down to 2, and as twilight approaches, it settles back at 1 by 19:00. Plan your outdoor activities wisely to stay safe in the sun!

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	3	moderate	30 min
10:00	5	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	8	very high	15 min
16:00	6	high	25 min
17:00	4	moderate	30 min
18:00	2	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Caldas da Rainha

The UV Index varies significantly throughout the year, with notable increases during the warmer months. High-risk months include April through September, when the UV Index reaches its peak, particularly in June at an extreme level of 11. During these months, the burn time shortens dramatically, with a maximum exposure of just 10 minutes in June to avoid skin damage. Conversely, the winter months of January, February, November, and December exhibit a moderate risk, allowing for longer exposure times of 30 minutes. Visitors and residents are advised to take precautions during the high-risk period, including wearing sunscreen, protective clothing, and limiting sun exposure, especially between the hours of 10 AM and 4 PM when UV radiation is the strongest.

Monthly Maximum UV Index for Caldas da Rainha, Portugal

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Caldas da Rainha. 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 Caldas da Rainha, 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 Caldas da Rainha UV Index with Other Portugal Cities

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

Caldas da Rainha's solar exposure compared to other cities in Portugal. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Braga UVI	2	4	6	8	9	11	10	9	8	6	4	2
Porto UVI	2	4	6	8	9	11	10	9	8	6	4	2
Caldas da Rainha	3	5	6	9	9	11	10	9	8	6	4	3
Amadora UVI	3	5	6	9	10	11	10	9	8	6	4	3
Lisbon UVI	3	5	6	9	10	11	10	9	8	6	4	3
Setubal UVI	3	5	6	9	10	11	10	9	8	6	4	3