UV Index in Ko Olina, United States

Last updated: July 2, 2025

In Ko Olina, United States, being aware of the UV Index is crucial for safeguarding your skin and overall health. Understanding UV levels can significantly impact sunburn prevention and long-term skin health, especially in a tropical climate where exposure risks are heightened. With peak UV Index values soaring up to 13 around midday—indicating an extreme risk of harm from unprotected sun exposure—it's vital to monitor these levels daily. By staying informed, you can enjoy the beautiful Ko Olina beaches while protecting yourself from the sun's harmful effects.

Hourly UV Index in Ko Olina

The UV Index during the day reveals a notable peak in sun exposure. Starting at 07:00 with a gentle 1, it gradually climbs to 2 by 08:00. As the sun rises higher, the index surges dramatically, hitting 5 at 09:00, and reaching a striking 8 by 10:00. The intensity peaks at 12:00 with a scorching 13, remaining high until 13:00. After that, it starts to decline, returning to 11 at 14:00 and falling to 8 by 15:00. As the afternoon wanes, the index drops to 5 at 16:00, and finally settles back to 1 by 18:00 and 19:00. This data highlights the importance of sun safety measures during the midday hours when UV exposure is at its highest.

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	5	moderate	30 min
10:00	8	very high	15 min
11:00	11	extreme	10 min
12:00	13	extreme	10 min
13:00	13	extreme	10 min
14:00	11	extreme	10 min
15:00	8	very high	15 min
16:00	5	moderate	30 min
17:00	2	low	45 min
18:00	1	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Ko Olina

Throughout the year, the UV Index shows significant seasonal changes, with the highest values occurring from March through October, categorizing these months as extreme risk for sun exposure. Notably, the peak occurs in July, with a UV Index of 13, necessitating a burn time of only 10 minutes for unprotected skin. High-risk months for sun exposure include March to October, where visitors and residents should exercise caution and take protective measures, such as applying sunscreen, wearing protective clothing, and seeking shade. In contrast, the UV Index decreases in November and December, with a lower risk and longer burn time at 15 minutes and 25 minutes, respectively. It's crucial for everyone to stay informed about the daily UV Index to ensure their safety while enjoying outdoor activities.

Monthly Maximum UV Index for Ko Olina, United States

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

The table above highlights how UV exposure in Ko Olina 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.

Ko Olina'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
Ko Olina	8	10	11	12	12	12	13	12	12	11	8	7