UV Index in Magnolia, United States

Last updated: June 2, 2025

Awareness of the UV Index is essential for residents of Magnolia, United States, where the subtropical climate leads to varying levels of ultraviolet radiation throughout the year. Understanding UV levels is crucial for preventing sunburn and protecting skin health, especially when peak indices frequently reach dangerous levels—like a staggering 11 from noon to 2 PM. With Magnolia's typically warm and sunny weather, the risk of overexposure increases, making it vital to stay informed and take necessary precautions. Whether you’re spending a day outdoors or simply running errands, being aware of the UV Index can help you enjoy the sunshine safely.

Hourly UV Index in Magnolia

At sunrise, the UV Index starts at a gentle 1 by 07:00, perfect for early risers enjoying the morning light. As the day progresses, it gradually climbs, reaching a moderate 3 by 09:00 and peaking at an intense 11 around 13:00 and 14:00. During these midday hours, the sun's rays are at their most powerful, making it crucial to seek shade or wear protective gear. Post-peak, the index begins to decline, descending to 5 by 17:00 and tapering off to 1 again by 19:00. This dynamic pattern highlights the importance of staying vigilant about sun protection, especially during 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	7	high	25 min
12:00	9	very high	15 min
13:00	11	extreme	10 min
14:00	11	extreme	10 min
15:00	10	very high	15 min
16:00	7	high	25 min
17:00	5	moderate	30 min
18:00	3	moderate	30 min
19:00	1	low	45 min

Monthly UV Index Trends in Magnolia

Throughout the year, the UV Index experiences significant seasonal changes, with January and December presenting the lowest levels (UV Index 3) and the summer months of June and July reaching peak levels (UV Index 11), categorized as extreme. April and May also have very high readings (UV Index 9-10), indicating a gradual increase in risk as spring progresses into summer. March, August, and September maintain a high risk for UV exposure (UV Index 7-9). Visitors and residents are advised to take precautions from March through October, especially during the extreme months of June and July, by seeking shade, wearing protective clothing, and applying sunscreen regularly, as burn times decrease significantly to as little as 10 minutes during peak UV periods.

Monthly Maximum UV Index for Magnolia, United States

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

The table above highlights how UV exposure in Magnolia 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.

Magnolia'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
Magnolia	3	5	7	9	10	11	11	10	9	7	5	3
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