UV Index in Ribeirinha, Portugal

Last updated: June 2, 2025

In Ribeirinha, Portugal, being aware of the UV Index is crucial for safeguarding your skin against harmful ultraviolet rays. Understanding UV levels is essential not only for preventing sunburn but also for maintaining long-term skin health. As a region characterized by a Csb climate, Ribeirinha experiences significant UV exposure, especially during midday hours when values soar to 11. Being informed about the UV Index can help residents and visitors alike embrace the sun safely, ensuring enjoyable outdoor experiences without compromising skin protection.

Hourly UV Index in Ribeirinha

The UV Index throughout the day reveals a dramatic rise in intensity as the sun climbs higher in the sky. Starting off gentle at 1 by 07:00, it gradually increases to 2 by 09:00. The sun's rays peak sharply at 12:00, reaching a sizzling 9, and then escalate to an intense 11 between 13:00 and 14:00. As the afternoon wanes, the index begins to decline, dipping to 8 by 16:00, and continuing to decrease, landing at 3 by 18:00 and finally 2 at 19:00. This data underscores the critical importance of sun safety during the peak hours around noon to early afternoon—be sure to protect your skin when the UV Index is at its highest!

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	7	high	25 min
12:00	9	very high	15 min
13:00	11	extreme	10 min
14:00	11	extreme	10 min
15:00	10	very high	15 min
16:00	8	very high	15 min
17:00	5	moderate	30 min
18:00	3	moderate	30 min
19:00	2	low	45 min

Monthly UV Index Trends in Ribeirinha

As the seasons change, so do the UV index levels, with highest risks typically occurring from April to September. During these months, especially in June when the UV index reaches an extreme level of 11, the burn time is as short as 10 minutes. Visitors and residents should be particularly vigilant during this period, taking necessary precautions such as applying sunscreen with a high SPF, wearing protective clothing, and limiting sun exposure during peak hours. Conversely, during the winter months from January to March, the UV levels are substantially lower, categorized as moderate to high, allowing for safer outdoor activities with burn times ranging from 25 to 30 minutes. It’s crucial to remain aware of these seasonal changes to protect skin health throughout the year.

Monthly Maximum UV Index for Ribeirinha, Portugal

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

The table above highlights how UV exposure in Ribeirinha 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.

Ribeirinha'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
Ribeirinha	3	5	7	9	10	11	10	10	9	7	4	3