UV Index in Portel, Portugal

Last updated: July 2, 2025

Understanding the UV Index is crucial for the residents and visitors of Portel, Portugal, where the sun can be both a friend and a foe. With its Mediterranean climate (Csa), residents experience a warm climate characterized by high UV exposure, particularly during peak hours. Recognizing the significance of UV levels is essential not just for preventing painful sunburns but also for ensuring long-term skin health. Throughout the day, the UV Index in Portel can soar to a maximum of 10, highlighting the importance of sun safety practices to protect against harmful UV radiation. Stay informed and enjoy the sun safely!

Hourly UV Index in Portel

Throughout the day, the UV Index showcases a striking progression in intensity. Starting from a mild level of 1 at 7:00 AM, it gradually climbs, reaching 3 by 9:00 AM. As the sun rises higher, the index peaks at an impressive 10 between 1:00 PM and 2:00 PM, indicating the highest risk for skin damage. Following this midday surge, it gently tapers off, dipping back to 5 by 5:00 PM and finally settling at 1 as dusk approaches at 7:00 PM. This data highlights the importance of sun protection during peak hours, especially from 11:00 AM to 2:00 PM when UV exposure can be most harmful.

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.
TimeUVICategoryTime to Burn
07:001low45 min
08:001low45 min
09:003moderate30 min
10:005moderate30 min
11:007high25 min
12:009very high15 min
13:0010very high15 min
14:0010very high15 min
15:009very high15 min
16:007high25 min
17:005moderate30 min
18:002low45 min
19:001low45 min

Monthly UV Index Trends in Portel

As the seasons change, so too does the UV Index, which indicates the potential for skin damage due to solar radiation. High-risk months for UV exposure occur from March to September, peaking in June with an extreme UV Index of 11, where burn time is as little as 10 minutes. Visitors and residents are advised to take extra precautions during these months, including wearing sunscreen, protective clothing, and sunglasses, particularly during midday hours. A significant drop in UV exposure occurs from October to February, where the levels generally remain moderate to high, and burn times increase to 30 minutes in January and November. Staying informed about the UV Index can help ensure safe outdoor activities throughout the year.

Monthly Maximum UV Index for Portel, Portugal

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Portel. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec3579101110109643
Data source: Statistical UV Index data for Portel, 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 Portel UV Index with Other Portugal Cities

The table above highlights how UV exposure in Portel 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.
Portel's solar exposure compared to other cities in Portugal. Generated using Copernicus Atmosphere Monitoring Service information.
 JanFebMarAprMayJunJulAugSepOctNovDec
Braga UVI24689111098642
Porto UVI24689111098642
Amadora UVI356910111098643
Lisbon UVI356910111098643
Setubal UVI356910111098643
Portel3579101110109643