Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors in Marigot, Dominica, where the sun shines brightly in an Af climate. As UV levels can soar to a maximum of 14 during midday, being aware of these fluctuations is key to preventing sunburn and protecting your skin health. With such high exposure risks, especially between 10 AM and 2 PM, it's essential to monitor the UV Index, ensuring you take appropriate precautions to enjoy the beautiful Caribbean sun safely.
As the sun rises, the UV Index begins its ascent, starting at a mild 1 at 07:00. By 08:00, it climbs to 3, indicating a cautious need for sun protection. The real intensity kicks in by 09:00, reaching 6, and peaks at a striking 14 at 12:00—the hour when the sun is at its zenith. With readings of 13 still prevalent from 11:00 to 13:00, it’s a vital time to stay protected! As afternoon settles in, the UV levels gradually taper off; they dip to 6 by 15:00 and descend further to 3 at 16:00. By evening, the risk diminishes significantly with a return to 1 at 17:00, rounding off the day as twilight approaches with a 0 reading by 19:00. Stay safe in the sun!
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 1 | low | 45 min |
08:00 | 3 | moderate | 30 min |
09:00 | 6 | high | 25 min |
10:00 | 10 | very high | 15 min |
11:00 | 13 | extreme | 10 min |
12:00 | 14 | extreme | 10 min |
13:00 | 13 | extreme | 10 min |
14:00 | 10 | very high | 15 min |
15:00 | 6 | high | 25 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 seasonal variations, with the most intense exposure occurring from February through October, where the index reaches levels categorized as extreme. During these months, particularly in March, April, May, July, and August, the UV Index peaks at 13 to 14, indicating a very short burn time of just 10 minutes. January, November, and December feature lower UV levels, classified as very high, with slightly longer burn times of 15 minutes. Visitors and residents should exercise caution during the high-risk months by seeking shade, wearing protective clothing, and applying sunscreen frequently to mitigate the risk of UV-related harm.
UV Risk Categories
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Marigot | 10 | 11 | 13 | 14 | 14 | 13 | 14 | 13 | 13 | 12 | 10 | 9 |
Portsmouth UVI | 10 | 11 | 13 | 14 | 14 | 13 | 14 | 13 | 13 | 12 | 10 | 9 |
Mahaut UVI | 10 | 11 | 13 | 14 | 14 | 13 | 14 | 13 | 13 | 12 | 10 | 9 |
Roseau UVI | 10 | 11 | 13 | 14 | 14 | 13 | 14 | 13 | 13 | 12 | 10 | 9 |
Berekua UVI | 10 | 11 | 13 | 14 | 14 | 13 | 14 | 13 | 13 | 12 | 10 | 9 |