UV Index in Delta, United States

Last updated: July 2, 2025

In Delta, United States, understanding the UV Index is crucial for protecting your skin and maintaining overall health. High UV levels, especially during peak hours, can lead to sunburns and long-term skin damage, making awareness particularly important. As a region located in a BSk climate zone, Delta experiences significant exposure to harmful ultraviolet radiation, with UV Index values peaking at 12 during midday. By staying informed about daily UV levels, residents can take proactive measures to safeguard their skin and enjoy the sun safely.

Hourly UV Index in Delta

Starting your day early pays off with a gentle UV Index of 1 at 7 AM, gradually climbing to 2 by 8 AM. As the sun continues to rise, the intensity spikes significantly, reaching a moderate 4 at 9 AM. By 10 AM, it's time to pay attention, as the UV Index soars to 6. The peak comes at 12 PM, where a high of 11 is reached, indicating a need for sun protection. The afternoon remains intense, with values sticking at 12 from 1 PM to 2 PM, before tapering off to 10 at 3 PM. The evening ushers in relief, with readings dropping to 4 by 5 PM, and winding down to 1 at 7 PM. It’s crucial to stay mindful of the sun's strength during midday hours, ensuring your skin stays protected as you enjoy the great outdoors!

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	9	very high	15 min
12:00	11	extreme	10 min
13:00	12	extreme	10 min
14:00	12	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 Delta

Throughout the year, the UV Index experiences significant fluctuations, peaking during the summer months. The high-risk months for UV exposure are March through August, where the index reaches extremes of 11 to 12, notably in May, June, and July. During these times, the burn time can be as short as 10 minutes, emphasizing the urgency for protective measures. As exposure categories shift from moderate in the winter months (January, November, December) to high and extreme later in the year, it's crucial for both visitors and residents to adopt sun safety practices. This includes wearing protective clothing, applying sunscreen regularly, and seeking shade during peak hours, particularly between March and September, when UV levels are at their most hazardous.

Monthly Maximum UV Index for Delta, United States

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

The table above highlights how UV exposure in Delta 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.

Delta'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
Delta	4	7	9	10	11	12	12	11	10	7	5	3
Houston UVI	5	8	9	11	11	12	12	11	10	9	7	5