UV Index in Pleasanton, United States

Last updated: July 2, 2025

In Pleasanton, United States, being aware of the UV Index is crucial for protecting your skin from harmful sun exposure. Understanding UV levels helps prevent sunburn and supports long-term skin health, allowing you to enjoy the outdoors with peace of mind. With Pleasanton’s Cfa climate, characterized by warm summers and mild winters, UV exposure can pose significant risks, especially during peak hours when the index reaches a maximum of 12. Stay informed and take necessary precautions to shield yourself from the sun’s rays!

Hourly UV Index in Pleasanton

Throughout the day, the UV Index reflects a dynamic dance of sunlight intensity. Starting off with a low 1 at 7:00 AM, the rays progressively warm up, peaking at 12:00 PM with a scorching 10, and then reaching its maximum of 12 by 2:00 PM. This midday sun demands careful attention and protection, as it signals a high risk for skin damage. Fortunately, as the sun begins its descent, the index gracefully tapers down to 5 by 5:00 PM and dwindles to 1 by 7:00 PM. Embrace the early hours with ease, but stay sun-smart during the peak times!

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	2	low	45 min
10:00	5	moderate	30 min
11:00	7	high	25 min
12:00	10	very high	15 min
13:00	11	extreme	10 min
14:00	12	extreme	10 min
15:00	10	very high	15 min
16:00	7	high	25 min
17:00	5	moderate	30 min
18:00	2	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Pleasanton

Throughout the year, UV levels exhibit significant seasonal changes. January sees a moderate UV Index of 5, while February and March jump to 8 and 9, respectively, indicating very high exposure risks with short burn times of just 15 minutes. The peak months for UV exposure are from April to August, where the Index reaches an extreme level of 11 to 12, necessitating caution with a burn time of only 10 minutes. As the year progresses, UV levels decrease, but October remains notably high at 9, followed by November with a high category of 7. For visitors and residents alike, it is crucial to take protective measures during the high-risk months of April through September and remain vigilant, using sunscreen, wearing protective clothing, and seeking shade to minimize the risk of skin damage.

Monthly Maximum UV Index for Pleasanton, United States

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

The table above highlights how UV exposure in Pleasanton 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.

Pleasanton'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
Houston UVI	5	8	9	11	11	12	12	11	10	9	7	5
Pleasanton	5	8	9	11	11	12	12	12	11	9	7	5