UV Index in Resende, Portugal

Last updated: May 3, 2025

Staying aware of the UV Index in Resende, Portugal is essential for protecting your skin from harmful ultraviolet rays. Understanding UV levels can help prevent sunburn and long-term skin damage, ensuring you enjoy the outdoor beauty of this picturesque region safely. With a Csb climate that features ample sunshine, especially during the peak hours when the UV Index can reach a maximum of 10 around midday, residents and visitors must be vigilant. Knowledge of these exposure risks allows everyone to plan their day wisely, wear appropriate sun protection, and embrace the serene landscapes without compromising their skin health.

Hourly UV Index in Resende

The UV Index throughout the day presents a clear narrative of rising intensity, peaking in the afternoon. Starting at 1 by 07:00, the UV levels gradually ascend, reaching 5 by 10:00. By 11:00, the index climbs to 7, and it soars to a striking 10 at 13:00—the optimal time for sun precautions. The intensity slightly wanes thereafter, dropping to 9 at 14:00 and continuing down to 4 by 17:00. As evening approaches, the UV Index dwindles to 1 by 19:00, signaling a return to safer levels. This data underscores the importance of sun safety measures during peak hours, particularly between 11:00 and 14:00.

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	3	moderate	30 min
10:00	5	moderate	30 min
11:00	7	high	25 min
12:00	9	very high	15 min
13:00	10	very high	15 min
14:00	9	very high	15 min
15:00	8	very high	15 min
16:00	6	high	25 min
17:00	4	moderate	30 min
18:00	2	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Resende

The UV Index shows a clear seasonal pattern, with increasing intensity from January to June and a gradual decline thereafter. March marks the transition to high risk, followed by extremely high levels in June (UV Index 11). April and May also present very high values (UV Index 9), making them critical months for sun exposure. From June to September, the UV Index remains predominantly in the very high category, indicating a heightened risk for sunburn and skin damage. Residents and visitors should take precautions, especially during April to September, by wearing protective clothing, applying sunscreen, and limiting time in direct sunlight, particularly during peak hours. As October and November roll in, UV levels decrease significantly, providing some relief, although it's still advisable to stay cautious with moderate UV levels in these months.

Monthly Maximum UV Index for Resende, Portugal

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

The table above highlights how UV exposure in Resende 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.

Resende'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
Resende	3	4	6	9	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