UV Index in Alao, American Samoa

Last updated: May 3, 2025

In the tropical paradise of Alao, American Samoa, awareness of the UV Index is crucial for safeguarding your skin and overall health. Understanding UV levels not only helps in preventing sunburn but also plays a vital role in long-term skin health, reducing the risk of skin cancer and premature aging. With Alao's warm Af climate, residents and visitors face unique exposure risks, especially during peak hours when UV levels soar—reaching as high as 11 around noon. Staying informed about the UV Index can empower you to enjoy the sun safely while preserving your skin's vitality.

Hourly UV Index in Alao

As the day unfolds, the UV Index reaches its peak between 11:00 AM and 12:00 PM, soaring to a striking 11. The morning starts gently, with the index at a modest 1 by 7:00 AM, slowly climbing to 4 by 9:00 AM. The sun then intensifies, pushing the index to a strong 10 at 11:00 AM, signaling it's time to seek shade and protect your skin. By 2:00 PM, it begins to wane, dropping to 8, and further decreases to 5 by 3:00 PM. As the afternoon progresses, the index continues to fall, reaching 2 at 4:00 PM, and finally settling at 1 by 5:00 PM and 0 as the sun sets at 6:00 PM. Stay aware and shield yourself during those crucial midday 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	2	low	45 min
09:00	4	moderate	30 min
10:00	7	high	25 min
11:00	10	very high	15 min
12:00	11	extreme	10 min
13:00	10	very high	15 min
14:00	8	very high	15 min
15:00	5	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 Alao

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 Alao, American Samoa

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

The table above highlights how UV exposure in Alao 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.

Alao'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
Alao	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