Last updated: June 2, 2025
Understanding the UV Index in Hamilton, Bermuda is crucial for safeguarding your skin health in this vibrant coastal city. With its subtropical climate, Hamilton experiences significant UV exposure, especially during peak hours. The importance of monitoring UV levels cannot be overstated, as they play a vital role in preventing sunburn and long-term skin damage. At midday, the UV Index can soar to a remarkable 10 or even 12, indicating high-risk conditions for unprotected skin. By staying informed about daily UV levels, residents and visitors alike can make smarter choices to enjoy the sun safely while protecting their skin.
The hourly UV Index data presents a captivating story of sun exposure throughout the day. Starting at a mild 1 at 7:00 AM, the UV levels gradually rise as the sun climbs, hitting 2 by 8:00 AM and 3 by 9:00 AM. As we approach midday, the intensity spikes dramatically, peaking at a striking 12 by 1:00 PM—just in time for the sun’s zenith. From there, it gently tapers off, recording 11 at 2:00 PM and descending to 9 by 3:00 PM. By late afternoon, the UV Index drops to 4 at 5:00 PM, and as the day wanes, it returns to that initial 1 by 7:00 PM. This data serves as a reminder to enjoy the sun responsibly, protecting your skin during those critical midday 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 | 6 | high | 25 min |
| 11:00 | 8 | very high | 15 min |
| 12:00 | 10 | very high | 15 min |
| 13:00 | 12 | extreme | 10 min |
| 14:00 | 11 | extreme | 10 min |
| 15:00 | 9 | very high | 15 min |
| 16:00 | 7 | high | 25 min |
| 17:00 | 4 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
The UV Index exhibits significant seasonal fluctuations, with the highest levels occurring from May to August, denoting extreme exposure risk, particularly in June and July when the index peaks at 12. During these high-risk months, the burn time decreases to just 10 minutes, underscoring the urgency for protective measures. Conversely, the UV Index starts at a moderate 5 in January and gradually rises, hitting 9 to 11 from March to October, then decreasing again to 4 in December. Visitors and residents should be especially vigilant from late spring through summer, using sun protection strategies such as applying sunscreen, wearing protective clothing, and seeking shade during peak hours to mitigate the risks associated with high UV exposure. Remember, even on cloudy days, UV rays can penetrate through, so consistent protective measures are crucial year-round.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hamilton | 5 | 7 | 9 | 10 | 11 | 12 | 12 | 11 | 10 | 9 | 6 | 4 |
| Saint George UVI | 5 | 7 | 9 | 10 | 11 | 12 | 12 | 11 | 10 | 9 | 6 | 4 |