UV Index in Utulei, American Samoa

Last updated: June 2, 2025

In Utulei, American Samoa, being aware of the UV Index is crucial for protecting your skin and overall health. Understanding local UV levels helps residents and visitors alike to prevent sunburn and long-term skin damage, especially in a region where the sun can be intense. With an Af climate, Utulei experiences a tropical atmosphere, leading to heightened UV exposure—particularly during midday when the index peaks at a striking 9. This makes it essential to stay informed about daily UV levels to enjoy the beautiful outdoors safely.

Hourly UV Index in Utulei

Throughout the day, the UV Index experiences a significant rise, peaking at a notable 9 between 12:00 PM and 1:00 PM, indicating a high risk of harm from unprotected sun exposure. Early morning hours from 7:00 AM to 9:00 AM see a minimal risk with indices of 1 to 3. As the sun climbs higher, the index reaches 7 at 11:00 AM, before hitting its maximum of 9 at noon. The afternoon sees a gradual decline: by 3:00 PM, it drops to 4, and by evening, it settles at 0 around 6:00 PM, indicating no significant risk. To stay safe under the sun, it's advisable to seek shade and wear protective clothing during the peak hours from 11:00 AM to 1:00 PM.

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	9	very high	15 min
14:00	7	high	25 min
15:00	4	moderate	30 min
16:00	2	low	45 min
17:00	1	low	45 min
18:00	0	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Utulei

The UV Index shows significant variations throughout the year, with extreme exposure levels primarily in the winter and early spring months. From January to May, the UV Index consistently ranges from 11 to 16, indicating high-risk months, particularly during January to April when burn time is just 10 minutes. In June and July, the Index lowers to 9, categorized as very high, allowing for a slightly longer burn time of 15 minutes. However, levels rise again in August, September, and October, all falling within the extreme category, with burn times reverting to 10 minutes. To ensure safety, residents and visitors alike are advised to limit sun exposure during these high-risk months, seek shade, wear protective clothing, and apply sunscreen consistently when outdoors.

Monthly Maximum UV Index for Utulei, American Samoa

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Utulei. 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 Utulei, 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 Utulei UV Index with Other American Samoa Cities

The table above highlights how UV exposure in Utulei compares to other major locations across American Samoa. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.

Utulei's solar exposure compared to other cities in American Samoa. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Utulei	16	16	15	13	11	9	9	12	14	15	15	15
Aua UVI	16	16	15	13	11	9	9	12	14	15	15	15
Faleniu UVI	16	16	15	13	11	9	9	12	14	15	15	15
Leone UVI	16	16	15	13	11	9	9	12	14	15	15	15
Tafuna UVI	16	16	15	13	11	9	9	12	14	15	15	15
Pago Pago UVI	16	16	15	13	11	9	9	12	14	15	15	15