UV Index in Hamilton, United States

Last updated: May 3, 2025

Understanding the UV Index in Hamilton, United States, is essential for protecting your skin and overall health. With the UV levels peaking at 9 during midday hours, awareness is crucial to prevent sunburn and long-term skin damage. Hamilton’s Dfa climate brings warm summers that can amplify ultraviolet exposure, making it vital for residents and visitors alike to stay informed about daily UV levels. By monitoring the UV Index, you can take proactive steps to safeguard your skin and enjoy the sunny outdoors safely.

Hourly UV Index in Hamilton

At dawn, the UV Index starts off low at 1 by 07:00, gradually increasing as the sun climbs higher. By 09:00, it reaches 3, but the real surge occurs around 10:00 with a peak of 6. The intensity ramps up sharply, hitting 8 by 11:00, and culminating at its zenith of 9 between 12:00 and 14:00. After this peak, a gradual decline begins, with the index dropping to 7 by 15:00, and continuing its descent to 5 by 16:00. As the evening approaches, the UV Index winds down, settling back to 3 at 17:00, and returning to a safe 1 by 19:00. It's a vivid reminder to take precautions during the midday hours when UV exposure 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	2	low	45 min
09:00	3	moderate	30 min
10:00	6	high	25 min
11:00	8	very high	15 min
12:00	9	very high	15 min
13:00	9	very high	15 min
14:00	9	very high	15 min
15:00	7	high	25 min
16:00	5	moderate	30 min
17:00	3	moderate	30 min
18:00	2	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Hamilton

Throughout the year, UV exposure varies significantly, with the highest risk months occurring from April to September when the index reaches very high to extreme levels. Specifically, June stands out with a UV Index of 11, where a mere 10 minutes of unprotected sun exposure can lead to skin damage. In contrast, during the winter months of January and February, the UV Index remains lower, categorized as moderate, allowing for a safer 30-minute burn time. Visitors and residents are advised to take necessary precautions during high-risk months, such as applying broad-spectrum sunscreen, wearing protective clothing, and seeking shade during peak sunlight hours, to minimize their risk of UV-related skin damage.

Monthly Maximum UV Index for Hamilton, United States

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

The table above highlights how UV exposure in Hamilton 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.

Hamilton'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
Hamilton	3	5	6	8	9	11	10	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