UV Index in Santa Clara, Portugal

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents and visitors in Santa Clara, Portugal, where the sun's intensity can vary significantly throughout the day. Being aware of UV levels not only helps in preventing sunburn but is essential for maintaining long-term skin health. With a typical Csb climate, Santa Clara enjoys warm summers and mild winters, leading to heightened UV exposure risks, especially during peak hours between noon and 2 p.m. It's important to stay informed and take protective measures, particularly when the UV Index reaches levels as high as 10 during summer months. Prioritizing UV awareness can make all the difference in ensuring a safe and enjoyable time outdoors!

Hourly UV Index in Santa Clara

The UV Index for the day showcases a striking ascent in intensity, peaking during the afternoon hours. Starting from a low of 1 at 07:00 and 08:00, the index swiftly climbs to reach 3 by 09:00. By 10:00, it escalates to a moderate 5, but the real surge occurs between 11:00 and 14:00, hitting a maximum of 10—indicating a high risk of harm from unprotected sun exposure. As the day progresses, the UV Index gradually drops, retracting to 4 by 17:00 and further declining to 1 by 19:00. It's crucial to stay protected 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.
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
17:004moderate30 min
18:003moderate30 min
19:001low45 min

Monthly UV Index Trends in Santa Clara

Throughout the year, seasonal changes in UV Index reveal significant fluctuations in sun exposure and risk levels. The months of March through September present the highest UV levels, with April through June reaching the peak UV Index of 11 in June, categorized as extreme, while May and July also remain dangerously high. High-risk months for sunburn are clearly identified as April to September, where the burn time decreases sharply to as little as 10 minutes in June. As such, it is crucial for both visitors and residents to take precautionary measures during these months. This includes wearing sunscreen, donning protective clothing, and seeking shade during peak hours, particularly from late morning to mid-afternoon, to mitigate skin damage and health risks associated with UV exposure.

Monthly Maximum UV Index for Santa Clara, Portugal

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Santa Clara. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec346810111098642
Data source: Statistical UV Index data for Santa Clara, 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 Santa Clara UV Index with Other Portugal Cities

The table above highlights how UV exposure in Santa Clara 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.
Santa Clara's solar exposure compared to other cities in Portugal. Generated using Copernicus Atmosphere Monitoring Service information.
 JanFebMarAprMayJunJulAugSepOctNovDec
Braga UVI24689111098642
Porto UVI24689111098642
Santa Clara34689111098642
Amadora UVI356910111098643
Lisbon UVI356910111098643
Setubal UVI356910111098643