UV Index in Gafanha, Portugal

Last updated: July 2, 2025

In Gafanha, Portugal, understanding the UV Index is crucial for safeguarding your skin against harmful radiation, especially during the sun's peak hours when levels can reach up to 10. With a Csb climate that combines mild summers and significant sun exposure, residents and visitors alike must prioritize awareness of UV levels to prevent sunburn and maintain long-term skin health. By monitoring the UV Index, you can enjoy the beautiful outdoor scenery of Gafanha while protecting your skin from the risks associated with excessive sunlight.

Hourly UV Index in Gafanha

The UV Index data reveals a dramatic rise in sun exposure throughout the day, peaking during the afternoon hours. Starting at a low of 1 at 07:00 and 08:00, the UV Index climbs steadily, reaching 4 by 10:00. The intensity surges between 12:00 and 14:00, where it reaches a maximum of 10, indicating dangerously high levels of UV radiation. This intensity gradually tapers off, dropping to 4 by 17:00 before declining to 1 again by 19:00. It’s crucial to take precautions during the peak hours, especially between noon and 2 PM, to protect your skin from harmful UV rays!

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

Monthly UV Index Trends in Gafanha

Throughout the year, the UV Index experiences significant fluctuations, peaking during the summer months. January and December register low UV exposure levels (Index 2), allowing for longer safe sun exposure times of around 45 minutes. As February progresses to an Index of 4, caution becomes necessary, with a burn time of 30 minutes. The high-risk months emerge from March to September, where the Index ranges from 6 to 10, signaling very high UV levels for much of the summer; notably, April to August sees a consistent Index of 8-10, with a critical burn time of just 15 minutes. In this period, it's vital for visitors and residents to take precautions by seeking shade, wearing protective clothing, and applying sunscreen regularly. As the year transitions into fall, the UV Index declines, although October still presents a high risk at 6. Emphasizing sun safety during peak months is essential to prevent harmful UV exposure.

Monthly Maximum UV Index for Gafanha, Portugal

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

The table above highlights how UV exposure in Gafanha 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.

Gafanha'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
Gafanha	2	4	6	8	9	10	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