Last updated: June 2, 2025
Understanding the UV Index is crucial for residents of Narsingdi, Bangladesh, where the sun’s rays can pose significant health risks. With UV levels peaking at a maximum of 12 during midday, awareness becomes essential for sunburn prevention and overall skin health. Given Narsingdi's Aw climate, which features long, sun-drenched days, knowing the UV Index can help you take proactive measures against harmful exposure. As the UV index fluctuates throughout the day – rising sharply from 4 at 8 AM to a startling 12 by noon – staying informed is key to enjoying the outdoors safely while protecting your skin.
The UV Index provides a vital insight into sun exposure throughout the day, peaking during the late morning to early afternoon hours. At 07:00, it starts off low at 2, but by 08:00, it rises to 4, indicating increasing sun intensity. The real surge happens between 09:00 and 12:00, where it climbs dramatically to a maximum of 12 at 11:00 and 12:00. As the sun begins to dip after 13:00, the index gradually decreases to 11 at 1 PM and gently tapers off to 9 at 2 PM. By 3 PM, it continues to decline to 6, and by the evening, it reaches a minimal 1 at both 5 PM and 6 PM, finally falling to 0 by 7 PM. This hourly breakdown urges us to protect our skin during the peak hours, especially when the index hits its zenith.
| 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 | 12 | extreme | 10 min |
| 12:00 | 12 | extreme | 10 min |
| 13:00 | 11 | 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 shows significant seasonal variations, with the highest levels occurring during the summer months. March to October marks the peak period of UV exposure, particularly with extreme levels noted from May through September, where the UV Index reaches up to 13. The high-risk months for sunburn and skin damage are therefore May, June, July, August, September, and October, where burn times are as low as 10 minutes. Residents and visitors are strongly advised to take precautions during these months by seeking shade, wearing protective clothing, and applying broad-spectrum sunscreen, especially during midday hours when the sun is most intense. In contrast, while January through February still present moderate to high UV levels, the risks are considerably lower, with a burn time of 30 to 25 minutes. Awareness and precaution are essential to enjoying safe outdoor activities year-round.
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 |
| Narsingdi | 5 | 7 | 8 | 9 | 12 | 12 | 12 | 13 | 12 | 11 | 7 | 6 |
| 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 |