UV Index in Hatfield, United States

Last updated: July 2, 2025

Staying informed about the UV Index is essential for residents of Hatfield, United States. Understanding the UV levels can significantly help in preventing sunburn and promoting long-term skin health, especially during peak exposure times. Hatfield's humid subtropical climate (Cfa) means that the sun's intensity can rise rapidly, with UV values reaching as high as 10 around noon. By recognizing the risks associated with varying UV levels throughout the day, you can better protect yourself and your loved ones from harmful effects of overexposure.

Hourly UV Index in Hatfield

At sunrise, the UV Index starts gently at 1 around 07:00, whispering the promise of a bright day. As the clock ticks, it climbs steadily, reaching 2 by 08:00 and 3 by 09:00. The real intensity kicks in at 10:00, spiking to 6, and by 11:00, it jumps to 8. The peak occurs at 13:00, hitting a robust 10, a clear reminder to seek shade or don protection. As afternoon drifts toward evening, the index gracefully descends: it remains strong at 9 at 14:00, then eases to 7 at 15:00, 5 at 16:00, and finally back to 3, 2, and a calm 1 by 19:00. Enjoy the sun responsibly!

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	10	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 Hatfield

Throughout the year, UV exposure varies significantly, peaking in the late spring and summer months. April to August represent the high-risk period, with UV Index values reaching 10; indicating a very high exposure category and a burn time as short as 15 minutes. Visitors and residents should exercise caution and take protective measures, such as wearing sunscreen and protective clothing during these months. In contrast, January and December have moderate and low UV levels, respectively, with longer burn times of 30 to 45 minutes. Action is still advisable during these months, but the intensity is notably lower, allowing for safer outdoor activities. Overall, awareness of seasonal UV changes is essential for protecting skin health year-round.

Monthly Maximum UV Index for Hatfield, United States

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

The table above highlights how UV exposure in Hatfield 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.

Hatfield'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
Hatfield	3	5	6	8	10	10	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