UV Index in Colchester, United States

Last updated: June 2, 2025

In Colchester, United States, staying informed about the UV Index is crucial for protecting your skin and maintaining overall health. Understanding UV levels is key to preventing sunburn and long-term skin damage, especially during those peak sun hours when the risk is significantly higher. With a Dfa climate, Colchester experiences distinct seasons and varying sun exposure, making it important to monitor UV levels throughout the year. During summer months, UV readings can soar to a severe level of 11, highlighting the necessity of sun safety practices. Make informed decisions to enjoy the beautiful outdoors while keeping your skin safe!

Hourly UV Index in Colchester

The UV Index throughout the day follows a predictable rise and fall, peaking at 11 around 1:00 PM. Starting at a modest 1 at 7:00 AM, it gradually escalates, reaching 10 by 12:00 PM, signaling the need for sun protection. As the afternoon progresses, the index dips from 11 to 8 by 3:00 PM, then declines further to 2 by 6:00 PM, and finally settles back at 1 by 7:00 PM. This data underscores the importance of taking precautions during the hours of peak UV exposure, particularly between 11:00 AM and 3:00 PM, when levels are highest and pose the greatest risk to skin health.

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	4	moderate	30 min
10:00	6	high	25 min
11:00	8	very high	15 min
12:00	10	very high	15 min
13:00	11	extreme	10 min
14:00	10	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 Colchester

Throughout the year, UV exposure fluctuates significantly, with the highest risk months being from March to September. Notably, April through June witness the peak UV Index values, reaching 11 in June, classified as extreme, where the burn time shortens to just 10 minutes. In contrast, the winter months of January and December show much lower risks, with UV Index levels at 3 and 2, respectively. Residents and visitors should take heed during the high-risk months by wearing protective clothing, applying sunscreen, and limiting sun exposure, especially during midday when the sun’s rays are most intense. Overall, staying vigilant about UV levels can help prevent skin damage and maintain health year-round.

Monthly Maximum UV Index for Colchester, United States

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

The table above highlights how UV exposure in Colchester 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.

Colchester'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
Colchester	3	5	7	8	10	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