Last updated: June 2, 2025
Understanding the UV Index in Fianarantsoa, Madagascar is essential for protecting your skin and ensuring overall health. With the region's Cfb climate, residents and visitors alike can experience varied sunlight intensity throughout the day, leading to fluctuating UV levels that rise sharply, peaking at 7 between 11 AM and 12 PM. Being aware of these UV levels is crucial for sunburn prevention and long-term skin health, as unprotected exposure can have harmful consequences. With the sun's UV rays posing risks even on seemingly mild days, keeping a close eye on the UV Index can help you enjoy the beauty of Fianarantsoa safely.
The UV Index data paints a clear picture of how exposure to ultraviolet rays varies throughout the day. Starting at a low level of 1 at 07:00, the index gradually climbs to peak at 7 from 11:00 to 12:00, indicating the times when sun protection is most crucial. As the afternoon progresses, the index dips to 6 at 13:00, then gently declines to 4 by 14:00. The evening hours see a significant drop, with values falling to 2 at 15:00 and retreating to 1 at 16:00. By nightfall, the UV Index drops to 0 from 18:00 onward, signalling a safe time for outdoor activities without the need for sun protection. Enjoy the sunshine, but be mindful of the peak hours!
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 1 | low | 45 min |
08:00 | 2 | low | 45 min |
09:00 | 3 | moderate | 30 min |
10:00 | 5 | moderate | 30 min |
11:00 | 7 | high | 25 min |
12:00 | 7 | high | 25 min |
13:00 | 6 | high | 25 min |
14:00 | 4 | moderate | 30 min |
15:00 | 2 | low | 45 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 experiences significant seasonal variation, with extreme levels persisting from January to April and a noticeable decline as summer approaches. The months of May, July, and August see a jumping from very high to high exposure categories, indicating a mild shift in UV intensity. September through November return to the extreme levels, before tapering off slightly in December. The high-risk months for UV exposure are January through April, and again from September to November, where the burn time is notably short at 10 minutes. Residents and visitors are strongly advised to take protective measures during these periods, such as wearing sunscreen, hats, and long sleeves to minimize skin damage from the sun's intense rays.
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 | 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 |