UV Index in Vailoatai, American Samoa

Last updated: July 2, 2025

In Vailoatai, American Samoa, being aware of the UV Index is crucial for protecting your skin from harmful rays. Understanding the UV levels throughout the day can significantly contribute to sunburn prevention and overall skin health, especially in a tropical climate that subjects residents and visitors to higher UV radiation. With peak UV Index values reaching 10 around midday, it’s essential to plan outdoor activities wisely to minimize your risk of overexposure. Stay informed and safeguard your skin while enjoying the beautiful surroundings of Vailoatai!

Hourly UV Index in Vailoatai

As the sun ascends in the morning sky, the UV Index gradually rises, starting at a mild 1 at 07:00 and 08:00. By 09:00, it reaches 3, indicating a moderate risk for unprotected skin. The intensity peaks at noon with a striking 9, showcasing the sun's power as it bathes the earth in its rays. The maximum UV Index occurs at 13:00, hitting 10, which signals a very high risk of harm from unprotected sun exposure. As the afternoon progresses, the index diminishes, dropping back to 8 by 14:00 and further declining to 5 at 15:00. By the evening, the sun’s influence wanes with the UV Index falling back to 1 by 17:00 and finally reaching 0 by 19:00. This data underlines the importance of sun safety during peak hours, particularly around midday 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.
TimeUVICategoryTime to Burn
07:001low45 min
08:001low45 min
09:003moderate30 min
10:005moderate30 min
11:008very high15 min
12:009very high15 min
13:0010very high15 min
14:008very high15 min
15:005moderate30 min
16:003moderate30 min
17:001low45 min
18:001low45 min
19:000low45 min

Monthly UV Index Trends in Vailoatai

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 Vailoatai, American Samoa

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Vailoatai. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec16161513119101214151515
Data source: Statistical UV Index data for Vailoatai, 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 Vailoatai UV Index with Other American Samoa Cities

The table above highlights how UV exposure in Vailoatai 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.
Vailoatai's solar exposure compared to other cities in American Samoa. Generated using Copernicus Atmosphere Monitoring Service information.
 JanFebMarAprMayJunJulAugSepOctNovDec
Vailoatai1616151311991214151515
Aua UVI1616151311991214151515
Faleniu UVI1616151311991214151515
Leone UVI1616151311991214151515
Tafuna UVI1616151311991214151515
Pago Pago UVI1616151311991214151515