UV Index in Weimar, United States

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents of Weimar, United States, as it plays a vital role in protecting skin health and preventing sunburn. With its Cfa climate, Weimar experiences varied UV exposure throughout the day, peaking at a notably high index of 12 around 1 PM. Being aware of these UV levels helps you take necessary precautions, ensuring you enjoy the sunny days while safeguarding your skin. Remember to check the UV Index regularly, especially during those midday hours when the sun's rays are most intense.

Hourly UV Index in Weimar

The day begins gently with a UV Index of 1 at both 07:00 and 08:00, indicating minimal sun exposure. However, as the clock strikes 09:00, the index rises to 3, signifying a gradual increase in UV intensity. By 10:00, it reaches 5, and the sun takes center stage at 11:00 with a striking 8. The peak arrives at 12:00, soaring to an impressive 10, and continues to climb, hitting its pinnacle with a dazzling 12 at 13:00. As the afternoon unfolds, values begin a slow descent: 11 at 14:00, 10 at 15:00, and then dropping to 7 by 16:00. The evening brings relief, with the index tapering down to 4 at 17:00, 2 at 18:00, and finally returning to a safe 1 by 19:00. Remember 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.
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	8	very high	15 min
12:00	10	very high	15 min
13:00	12	extreme	10 min
14:00	11	extreme	10 min
15:00	10	very high	15 min
16:00	7	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 Weimar

The UV Index experiences significant seasonal changes, peaking during the summer months. From February to September, UV levels rise sharply, reaching their highest values of 12 between June and August, categorizing them as extreme and resulting in a burn time of just 10 minutes. The months of April to September are particularly high-risk for sunburn, necessitating extra precautions. Conversely, January and December see moderate UV levels of 5, with longer burn times of 30 minutes, while November features a high UV Index of 7 with a burn time of 25 minutes. Visitors and residents are advised to take protective measures, such as wearing sunscreen, hats, and sunglasses, especially during the high-risk months from February to September.

Monthly Maximum UV Index for Weimar, United States

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

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

Weimar's solar exposure compared to other cities in United States. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Chicago UVI	3	4	6	8	9	10	10	9	8	6	4	2
Brooklyn UVI	3	5	6	8	10	10	9	9	8	6	4	2
New York City UVI	3	5	6	8	10	10	9	9	8	6	4	2
Los Angeles UVI	4	6	8	9	10	11	11	10	10	7	5	4
Houston UVI	5	8	9	11	11	12	12	11	10	9	7	5
Weimar	5	8	9	11	11	12	12	12	11	8	7	5