Last updated: June 2, 2025
In Andramasina, Madagascar, awareness of the UV Index is crucial for safeguarding your skin and overall health. The sun's rays can be deceptively powerful, especially during peak hours when the UV Index soars to 8, indicating a high risk of harm from unprotected sun exposure. Understanding these levels helps you take essential precautions to prevent sunburn and long-term skin damage. Given the region’s Cfb climate, featuring a mix of tropical and temperate characteristics, residents and visitors alike should remain vigilant about UV risks, particularly between 10 AM and 2 PM, when the sun’s intensity is at its zenith. Stay informed and protect your skin to enjoy the beautiful Malagasy sun safely!
As the sun rises, the UV Index begins its ascent, starting at a gentle 1 by 7:00 AM. By 8:00 AM, it nudges up to 2, signaling a mild increase in UV exposure. The intensity heats up quickly, reaching a moderate 4 by 9:00 AM, before hitting its peak of 8 from 11:00 AM to 12:00 PM. This is the prime time for sun safety awareness! After noon, the UV Index gradually declines; by 3:00 PM, it recedes to 3, and as the day wanes, it drops significantly to 1 by 4:00 PM. By evening, UV levels have diminished, reaching 0 by 6:00 PM, offering a reprieve from the sun’s rays.
| 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 | 6 | high | 25 min |
| 11:00 | 8 | very high | 15 min |
| 12:00 | 8 | very high | 15 min |
| 13:00 | 7 | high | 25 min |
| 14:00 | 5 | moderate | 30 min |
| 15:00 | 3 | moderate | 30 min |
| 16:00 | 1 | low | 45 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 0 | low | 45 min |
| 19:00 | 0 | low | 45 min |
The UV Index displays significant seasonal variability, peaking during the winter months. From January to March, the index remains extremely high, at 17 and 16, signaling a burn time of just 10 minutes, making these months particularly hazardous for sun exposure. As the year progresses into April and May, the index decreases slightly to 13 and 10 respectively, indicating a very high risk with burn times increasing to 15 minutes. The UV levels then maintain a very high rating through June and July with values dropping to 8 and 9, yet still necessitating caution. Rising again in August to 11 and continuing at 13 in September and October, the extremely high exposure category persists, with burn times remaining short at 10 minutes. November and December close the year with levels at 14 and 16, respectively. Visitors and residents should exercise caution, especially during the high-risk months of January to April and maintain sun safety practices year-round, such as using sunscreen, wearing protective clothing, and seeking shade when outdoors.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Toamasina UVI | 16 | 16 | 15 | 12 | 9 | 7 | 8 | 10 | 12 | 12 | 13 | 15 |
| Fianarantsoa UVI | 17 | 17 | 15 | 12 | 9 | 7 | 8 | 10 | 12 | 13 | 14 | 16 |
| Mahajanga UVI | 16 | 16 | 15 | 13 | 10 | 8 | 9 | 11 | 12 | 12 | 13 | 15 |
| Antananarivo UVI | 17 | 17 | 15 | 12 | 10 | 8 | 9 | 11 | 13 | 13 | 14 | 16 |
| Antsirabe UVI | 17 | 17 | 16 | 13 | 10 | 8 | 9 | 11 | 13 | 13 | 14 | 16 |
| Andramasina | 17 | 17 | 16 | 13 | 10 | 8 | 9 | 11 | 13 | 13 | 14 | 16 |