UV Index in Holualoa, United States

Last updated: July 2, 2025

In Holualoa, United States, understanding the UV Index is vital for maintaining skin health and preventing sunburn, especially in a beautiful climate zone like Cfb, which offers warm temperatures year-round. With peak UV levels reaching an intense 14 around noon, awareness of the daily UV fluctuations can help residents and visitors protect themselves from harmful rays. Knowledge of UV exposure risks not only safeguards against immediate discomfort but also plays a crucial role in reducing long-term skin damage. As you enjoy the sunny landscapes of Holualoa, staying informed about the UV Index allows you to relish the sun safely.

Hourly UV Index in Holualoa

The UV Index peaks dramatically throughout the day, starting from a modest 1 at 07:00. As the sun climbs higher, it catches fire, reaching 3 by 08:00, escalating to a striking 9 at 10:00. The intensity hits its zenith at 12:00, soaring to 14—a reminder to apply sunscreen! This intensity remains high at 13:00 with a reading of 13 before gradually tapering off. By 15:00, it drops to 8, and the evening sees it dwindle to 2 by 17:00. Finally, as the sun sets, the index falls back to 1 by 18:00, and then to 0 at 19:00, signifying the end of another sun-soaked day. Stay protected during those peak hours to enjoy the warmth safely!

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	3	moderate	30 min
09:00	5	moderate	30 min
10:00	9	very high	15 min
11:00	12	extreme	10 min
12:00	14	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	0	low	45 min

Monthly UV Index Trends in Holualoa

The UV Index varies significantly throughout the year, with peak levels occurring during the warmer months. From February to September, the UV Index remains consistently high, reaching an extreme level of 14 in both July and August. The high-risk months for UV exposure are notably from February through October, where a burn time of just 10 minutes can result in skin damage. Visitors and residents should take precautions during these months, such as wearing sunscreen, protective clothing, and seeking shade during peak sun hours. As we approach the lower UV levels of November and December, with a UV Index of 8 and a longer burn time of 15 minutes, the risk remains substantial, but overall it's essential to stay vigilant year-round for UV safety.

Monthly Maximum UV Index for Holualoa, United States

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

The table above highlights how UV exposure in Holualoa 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.

Holualoa'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
Holualoa	8	11	12	13	13	13	14	14	13	12	9	8