Last updated: June 2, 2025
In San Juan y Martinez, Cuba, understanding the UV Index is crucial for safeguarding your skin health and preventing sunburn. With its tropical climate, this vibrant town experiences intense midday sun, where UV levels can reach as high as 13—a reminder of the importance of sun safety. By being aware of daily UV exposure, you can take proactive steps to protect yourself, enjoy outdoor activities, and minimize skin damage. Whether you’re basking on the beach or exploring the beautiful surroundings, knowing when to apply sunscreen or seek shade can make a significant difference in your overall well-being.
As the sun rises, the UV Index starts off relatively low, peaking at 1 from 7:00 AM to 9:00 AM. However, the intensity quickly escalates, reaching 3 at 9:00 AM and hitting a striking 5 by 10:00 AM. From 11:00 AM to 1:00 PM, the UV levels soar, peaking at a blistering 13 at 1:00 PM, making this the most dangerous period for sun exposure. As the day progresses, the index begins to moderate, dropping to 8 by 4:00 PM and continuing to decline until it settles back at 1 by 7:00 PM. It's crucial to stay protected during those midday hours when the sun's rays are at their strongest!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 3 | moderate | 30 min |
| 10:00 | 5 | moderate | 30 min |
| 11:00 | 9 | very high | 15 min |
| 12:00 | 11 | extreme | 10 min |
| 13:00 | 13 | extreme | 10 min |
| 14:00 | 13 | extreme | 10 min |
| 15:00 | 11 | extreme | 10 min |
| 16:00 | 8 | very high | 15 min |
| 17:00 | 5 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
As the seasons change, so do the levels of UV radiation. From January to December, the UV Index fluctuates, peaking at a high of 13 from April to June, categorizing these months as part of the extreme exposure category, where the burn time is as short as 10 minutes. Notably, February and March also present high risks with indices of 10 and 11, respectively. November and December, while having lower values at 8 and 7, still fall into the very high to high categories, cautioning residents and visitors. It's crucial for everyone to take protective measures during the high-risk months (February to October) by wearing sunscreen, protective clothing, and seeking shade to minimize exposure and prevent sunburn. Stay informed and safe by monitoring UV levels and adjusting outdoor activities accordingly.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Havana UVI | 7 | 10 | 11 | 12 | 12 | 13 | 12 | 12 | 12 | 10 | 8 | 7 |
| San Juan y Martinez | 7 | 10 | 11 | 13 | 13 | 13 | 12 | 12 | 12 | 11 | 8 | 7 |
| Camaguey UVI | 8 | 10 | 12 | 13 | 13 | 13 | 12 | 12 | 12 | 11 | 9 | 7 |
| Holguin UVI | 8 | 11 | 12 | 13 | 13 | 13 | 13 | 13 | 12 | 11 | 8 | 7 |
| Santiago de Cuba UVI | 9 | 11 | 12 | 13 | 13 | 13 | 13 | 13 | 13 | 11 | 9 | 8 |
| Guantanamo UVI | 9 | 11 | 12 | 13 | 13 | 13 | 13 | 13 | 13 | 11 | 9 | 8 |