Last updated: July 2, 2025
In Mesepa, American Samoa, being aware of the UV Index is crucial for safeguarding your skin and overall health. Understanding UV levels helps you take necessary precautions against sunburn and long-term skin damage, especially during peak hours when the UV Index reaches a maximum of 10 around noon. With its tropical Af climate, Mesepa typically experiences high UV exposure, making it essential for locals and visitors alike to know when to seek shade or apply sunscreen. Stay informed and protect yourself against the sun’s harmful rays!
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.
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 | 8 | very high | 15 min |
12:00 | 9 | very high | 15 min |
13:00 | 10 | very high | 15 min |
14:00 | 8 | very high | 15 min |
15:00 | 5 | moderate | 30 min |
16:00 | 3 | moderate | 30 min |
17:00 | 1 | low | 45 min |
18:00 | 1 | low | 45 min |
19:00 | 0 | low | 45 min |
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.
UV Risk Categories
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Mesepa | 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 |