Last updated: June 2, 2025
Understanding the UV Index is crucial for residents and visitors in Mahabe, Madagascar, where the warm Aw climate can lead to significant sun exposure. With midday UV levels reaching up to 8, it’s essential to recognize the risks associated with high UV radiation, including sunburn and long-term skin health issues. As the sun's intensity peaks around noon and later diminishes throughout the afternoon, being aware of these levels can help you take proactive measures to protect your skin and enjoy the beautiful Malagasy sun safely.
As the sun rises, the UV Index begins its gradual ascent, peaking sharply at 12:00 PM with a striking 8—a reminder of the midday sun's intensity. Starting the day at a gentle 1 at 07:00, it climbs steadily to reach 6 by 10:00 AM, encouraging outdoor enthusiasts to stay protected. The climax arrives at 11:00 AM with a 7, followed closely by the height of 8 at noon. As the afternoon progresses, the UV level gracefully declines, dipping to 5 by 2:00 PM, then significantly dropping to 3, 1, and finally 0 after 6:00 PM. This data underscores the importance of sun safety during peak hours, particularly between 11:00 AM and 1:00 PM, when the UV risk is at its highest—so ensure you’re well-shielded during these critical times!
| 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 | 7 | high | 25 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 data reveals significant seasonal variations, with extreme exposure levels prevalent from January to April and again in August through November. The highest UV Index is recorded in January, February, and March at 16, indicating a critical need for sun protection as burn time is only 10 minutes. As we transition into spring and summer, the UV Index decreases slightly, reaching a maximum of 10 in May and 8-9 from June to July, still classified as very high. However, the risk escalates again in late summer and fall, especially in August and September, where the index returns to extreme levels. Visitors and residents are strongly advised to take precautions during these high-risk months—wearing broad-spectrum sunscreen, protective clothing, and seeking shade, particularly during midday hours—to minimize skin damage and health risks associated with excessive UV exposure.
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 |
| Mahabe | 16 | 16 | 15 | 13 | 10 | 8 | 9 | 11 | 12 | 12 | 14 | 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 |