Last updated: June 2, 2025
In Cox's Bazar, Bangladesh, being aware of the UV Index is essential for safeguarding against skin damage and promoting overall skin health. Understanding UV levels is crucial not only for preventing painful sunburns but also for reducing long-term risks such as skin cancer. Given the region’s tropical climate, the UV Index can soar to high levels, particularly around midday, with readings peaking at 13 between 11:00 AM and 12:00 PM. This means that without proper protection, sun exposure can quickly become hazardous. Stay informed and protected to enjoy the stunning beaches of Cox's Bazar safely!
The UV Index throughout the day showcases a striking pattern of intensity, peaking sharply around 11:00 AM and 12:00 PM with a robust 13, signaling a high risk for sun exposure during these hours. Early morning starts gently at 2 at 7:00 AM, then steadily climbs, passing through moderate levels at 8:00 AM and 9:00 AM, before reaching a critical point with a 10 at 10:00 AM. Post-noon, the index gradually declines, dropping to 6 by 3:00 PM and further to a much safer 1 by the evening at 5:00 PM and 6:00 PM, where it ultimately settles at 0 by nightfall. To enjoy the sun while protecting your skin, plan outdoor activities early or enjoy them after the peak hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | low | 45 min |
| 08:00 | 4 | moderate | 30 min |
| 09:00 | 7 | high | 25 min |
| 10:00 | 10 | very high | 15 min |
| 11:00 | 13 | 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 |
Throughout the year, the UV Index exhibits significant seasonal fluctuations, peaking during the summer months. From January to February, there is a noticeable increase in UV levels, with February reaching a UV Index of 9 (very high) and a burn time of just 15 minutes. The risk intensifies from March through October, where the UV Index consistently remains in the extreme category (11-13), with a dangerously low burn time of 10 minutes during the peak months. July, August, and September see the highest UV ratings at 13, emphasizing the need for heightened caution. In contrast, November and December see a decline back to high levels, with UV indices of 8 and 7, respectively. Visitors and residents are strongly advised to take protective measures, such as using sunscreen, wearing protective clothing, and seeking shade, particularly from March to October, where exposure can lead to severe sunburn in mere minutes. Stay informed and prioritize sun safety during these high-risk months!
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rajshahi UVI | 5 | 7 | 8 | 9 | 10 | 12 | 13 | 13 | 12 | 10 | 7 | 5 |
| Dhaka UVI | 5 | 7 | 9 | 9 | 12 | 13 | 13 | 13 | 12 | 11 | 7 | 6 |
| Comilla UVI | 6 | 7 | 9 | 10 | 12 | 13 | 13 | 13 | 12 | 10 | 8 | 6 |
| Khulna UVI | 5 | 7 | 9 | 10 | 13 | 13 | 13 | 14 | 12 | 11 | 8 | 6 |
| Chattogram UVI | 6 | 8 | 10 | 10 | 12 | 13 | 13 | 13 | 12 | 11 | 8 | 6 |
| Cox's Bazar | 7 | 9 | 11 | 11 | 12 | 13 | 13 | 13 | 13 | 11 | 8 | 7 |