Last updated: June 2, 2025
In Castle Bruce, Dominica, being aware of the UV Index is essential for maintaining your skin health and preventing sunburn. Understanding the UV levels throughout the day not only helps you avoid the harsh effects of the sun but also empowers you to enjoy the vibrant outdoor life in this tropical haven. With a climate characterized by high humidity and significant sunlight, Castle Bruce often experiences peak UV levels that can reach up to 13 around noon. By staying informed about the UV Index, you can better protect yourself and your loved ones from the potential risks of overexposure to ultraviolet rays while soaking up the beauty of this stunning locale.
The UV Index data reveals a dynamic fluctuation throughout the day, peaking at a maximum of 13 around noon. The morning starts off gently, with readings of only 1 at 07:00 and 3 by 08:00, perfect for early risers. However, as the sun ascends, the intensity rises sharply, hitting a critical 10 by 10:00 and reaching its zenith at 12 by 11:00 and 13 by 12:00. The afternoon sees a gradual decline, with values dropping to 9 at 14:00, and then further sliding to 6 by 15:00. As evening approaches, the UV Index dwindles to 3 by 16:00, and finally tails off to 1 by 17:00, nurturing a calmer end to the day. With clear awareness of these fluctuations, individuals can effectively plan their outdoor activities, ensuring protection during the most intense hours.
| 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 | 12 | extreme | 10 min |
| 12:00 | 13 | extreme | 10 min |
| 13:00 | 12 | extreme | 10 min |
| 14:00 | 9 | 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Castle Bruce | 10 | 11 | 13 | 14 | 14 | 13 | 14 | 13 | 13 | 12 | 10 | 9 |
| Marigot UVI | 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 |