Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors in Siris, Palestine, where the Mediterranean climate often brings intense sun exposure. As UV levels can soar to 11 during midday hours, awareness of these fluctuations is essential for sunburn prevention and maintaining overall skin health. By recognizing when UV rays are most potent, individuals can take proper precautions to protect themselves from harmful effects, especially given the area's typical sunlight intensity. With this information, you can enjoy the sun safely while safeguarding your skin from long-term damage.
Throughout the day, the UV Index experiences a dramatic increase, peaking at 11 between noon and 1 PM, indicating a very high level of solar radiation. Early risers will notice a gentle start, with a UV Index of just 1 at 7 AM, gradually climbing to 4 by 9 AM. As the sun reaches its zenith, values soar to 9 at 11 AM, signaling it's time to take precautions. After the peak, the UV Index begins to decline, dropping to 10 at 2 PM, then tapering off to 3 by 5 PM and resting back down to 1 by 6 PM. Staying protected in the midday sun is crucial for skin safety during these hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 4 | moderate | 30 min |
| 10:00 | 7 | high | 25 min |
| 11:00 | 9 | very high | 15 min |
| 12:00 | 11 | extreme | 10 min |
| 13:00 | 11 | extreme | 10 min |
| 14:00 | 10 | very high | 15 min |
| 15:00 | 7 | high | 25 min |
| 16:00 | 5 | moderate | 30 min |
| 17:00 | 3 | moderate | 30 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
As the seasons change, so do UV levels, significantly influencing the risk of sunburn and skin damage. January and December exhibit moderate UV indices of 4, allowing up to 30 minutes of safe exposure. February marks an increase to a high level of 6, reducing safe exposure to 25 minutes. This upward trend peaks in the spring and early summer, with May and June reaching an extreme UV index of 11 and 12, allowing only 10 minutes of exposure. March and April also present very high risks with indices of 8 and 9, advising extreme caution during these months. High-risk months, particularly March to August, require visitors and residents to take preventative measures, such as wearing sunscreen, protective clothing, and seeking shade during peak hours, especially when the index exceeds 8. As we move into fall, the UV index gradually declines, but remaining vigilant is still wise until November.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jabalya UVI | 4 | 6 | 8 | 9 | 11 | 11 | 11 | 10 | 9 | 8 | 5 | 4 |
| Gaza UVI | 4 | 6 | 8 | 9 | 11 | 11 | 11 | 10 | 9 | 8 | 5 | 4 |
| Siris | 4 | 6 | 8 | 9 | 11 | 12 | 11 | 10 | 9 | 8 | 5 | 4 |
| Nablus UVI | 4 | 6 | 8 | 9 | 11 | 12 | 11 | 10 | 9 | 8 | 5 | 4 |
| Hebron UVI | 4 | 6 | 8 | 10 | 11 | 12 | 11 | 10 | 9 | 8 | 5 | 4 |
| Khan Yunis UVI | 4 | 6 | 9 | 10 | 11 | 11 | 11 | 11 | 9 | 8 | 5 | 4 |