UV Index in Seixal, Portugal

Last updated: June 2, 2025

In Seixal, Portugal, staying informed about the UV Index is crucial for protecting your skin and overall health. Understanding UV levels helps you prevent sunburn and reduces the risk of long-term skin damage, making sun safety an essential aspect of enjoying the outdoors. Known for its Csb climate, Seixal experiences varying UV exposure throughout the day, with peak levels reaching as high as 12 around midday. Being aware of these fluctuations empowers residents and visitors alike to take the necessary precautions, ensuring fun-filled days under the sun while safeguarding their skin.

Hourly UV Index in Seixal

The UV Index for the day showcases a dramatic rise in sun intensity as the hours progress. Starting from a mild 1 at 07:00 and 08:00, the index climbs steadily, hitting 2 by 09:00. However, the true peak occurs between 12:00 and 14:00, when it soars to a striking 12—a point where intense sun exposure can be hazardous without protection. As the afternoon wanes, the index begins to decline, landing at 6 by 17:00, and tapering off to 2 as the sun sets. This data highlights the importance of taking precautions during the midday hours, when UV exposure is at its highest. Stay safe and protect your skin! 🌞

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	11	extreme	10 min
14:00	12	extreme	10 min
15:00	11	extreme	10 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 Seixal

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 Seixal, Portugal

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

The table above highlights how UV exposure in Seixal 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.

Seixal'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
Seixal	4	6	8	10	11	12	11	11	10	8	6	4