UV Index in Wattenwil, Switzerland

Last updated: May 3, 2025

Understanding the UV Index is essential for residents and visitors of Wattenwil, Switzerland, where the climate is characterized by cool summers and mild winters. This awareness plays a crucial role in sunburn prevention and overall skin health, particularly during peak UV times when levels can soar. With the UV Index reaching a high of 9 around midday, it’s vital to recognize the potential risks associated with outdoor activities. By staying informed about UV levels, you can enjoy the Swiss sunshine safely while protecting your skin from harmful effects.

Hourly UV Index in Wattenwil

The UV Index throughout the day showcases a dynamic pattern of intensity. Starting at a mild 1 at 07:00, it gradually escalates as the sun climbs higher. By 10:00, it reaches 5, signaling a noteworthy rise. The peak occurs at 13:00, with a striking 9, indicating a high potential for harm without protection. Following this zenith, the index starts to wane, dropping to 6 by 16:00 and further diminishing to 1 by 19:00. This illustrates a critical window from 10:00 to 14:00 when caution is essential for outdoor enthusiasts looking to enjoy the sun safely.

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	2	low	45 min
09:00	3	moderate	30 min
10:00	5	moderate	30 min
11:00	6	high	25 min
12:00	8	very high	15 min
13:00	9	very high	15 min
14:00	8	very high	15 min
15:00	7	high	25 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 Wattenwil

Throughout the year, seasonal changes in UV exposure highlight significant fluctuations in the UV Index. The months of May through August are particularly high-risk, with UV Index values reaching a peak of 10, indicating very high exposure and a burn time of only 15 minutes. Visitors and residents should remain vigilant during these months, employing protective measures such as sunscreen and clothing, especially between 10 AM and 4 PM when UV exposure is strongest. March and April also show increased risk with UV Index values of 6 and 7 respectively. Conversely, January and December present lower risk levels, with UV Index values of 2 indicating low exposure and longer potential burn times of 45 minutes. It is essential to monitor UV levels year-round and adjust sun protection strategies accordingly to ensure safety.

Monthly Maximum UV Index for Wattenwil, Switzerland

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

The table above highlights how UV exposure in Wattenwil compares to other major locations across Switzerland. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.

Wattenwil's solar exposure compared to other cities in Switzerland. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Basel UVI	2	3	5	6	8	9	9	8	6	4	2	1
Bern UVI	2	3	5	6	8	9	9	8	6	4	2	2
Zurich UVI	2	3	5	6	8	9	9	8	6	4	3	2
Geneve UVI	2	3	6	7	8	10	9	8	7	5	3	2
Lausanne UVI	2	4	6	7	8	10	9	9	7	5	3	2
Wattenwil	2	4	6	7	9	10	10	9	7	5	3	2