UV Index in Santana, Portugal

Last updated: May 3, 2025

Understanding the UV Index is crucial for residents and visitors of Santana, Portugal, where the warm Csb climate brings ample sunshine throughout the year. Being aware of UV levels helps you stay protected against harmful sun exposure, preventing painful sunburns and safeguarding your skin health. In Santana, particularly during peak hours between 11:00 AM and 3:00 PM, UV Index readings can soar to 11, indicating extreme risk. By familiarizing yourself with the daily UV Index, you can take proactive measures to enjoy the outdoors safely while minimizing skin damage.

Hourly UV Index in Santana

As the sun rises, the UV Index begins its steady ascent. At 07:00, it starts at a tranquil 0, but by 08:00, it nudges up to 1, signaling the need for a bit of caution. The climb continues, reaching 2 by 09:00, and quickly ramps up to 3 by 10:00. The real intensity hits at 11:00, with a spike to 6, and by 12:00, it soars to 8. The peak occurs at 13:00 with a striking 10, making midday the most sun-sensitive time. It escalates slightly to 11 at 14:00, before gradually tapering off to 10 at 15:00. By late afternoon, the UV Index drops to 8 at 16:00, 6 at 17:00, and settles down to 3 by 18:00. As the day fades, it continues to decline, ending at a gentle 2 by 19:00. This pattern shows the importance of sun safety during those peak hours!

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	0	low	45 min
08:00	1	low	45 min
09:00	2	low	45 min
10:00	3	moderate	30 min
11:00	6	high	25 min
12:00	8	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	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 Santana

Throughout the year, the UV Index demonstrates significant seasonal variation, with high-risk months primarily occurring from March to August when values reach their peak. Notably, May through July feature extreme UV Index levels (11-12), with a burn time as short as 10 minutes. This indicates that during these months, individuals should take extra precautions, such as wearing sunscreen, protective clothing, and seeking shade during peak sun hours. Conversely, in January and December, with a moderate UV Index of 4, burn times extend to 30 minutes, suggesting lower risk for sunburn. Visitors and residents are encouraged to remain vigilant and adjust their sun exposure habits in accordance with these fluctuations throughout the year to protect their skin health.

Monthly Maximum UV Index for Santana, Portugal

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

The table above highlights how UV exposure in Santana 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.

Santana'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
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
Santana	4	6	8	10	11	12	11	11	10	8	6	4