Last updated: May 3, 2025
Awareness of the UV Index is crucial for residents and visitors in Blantyre, Malawi, where the sun's intensity can significantly impact skin health and overall well-being. Understanding UV levels is essential for preventing sunburn and reducing long-term skin damage, especially in a region characterized by a Cwa climate, which brings sunny days and notable UV exposure. As the UV Index peaks between 10:00 AM and 12:00 PM with values reaching 10, it's vital to protect your skin during these hours to avoid harmful effects. Stay informed and take preventative measures to enjoy the beautiful sunshine responsibly!
The UV Index throughout the day shows a pronounced peak around midday. Starting at a mild 1 at 7:00 AM, it gradually climbs to 3 by 8:00 AM. As the sun rises higher, the index reaches a notable 10 from 11:00 AM to 12:00 PM, indicating a high risk for harm from unprotected sun exposure. Following this zenith, the intensity tapers off, dropping to 8 at 1:00 PM and gently descending to 5 by 2:00 PM. Afterward, the UV Index continues to decline, sinking to 3 at 3:00 PM, before finally resting at 1 by 4:00 PM and diminishing to 0 by 6:00 PM, signaling a safe end to sun exposure for the day. It's a classic reminder of the sun's potent power—stay protected during those peak hours!
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 1 | low | 45 min |
08:00 | 3 | moderate | 30 min |
09:00 | 5 | moderate | 30 min |
10:00 | 8 | very high | 15 min |
11:00 | 10 | very high | 15 min |
12:00 | 10 | very high | 15 min |
13:00 | 8 | very high | 15 min |
14:00 | 5 | moderate | 30 min |
15:00 | 3 | moderate | 30 min |
16:00 | 1 | low | 45 min |
17:00 | 1 | low | 45 min |
18:00 | 0 | low | 45 min |
19:00 | 0 | low | 45 min |
The UV Index exhibits significant seasonal fluctuations, remaining predominantly in the extreme category during the winter and fall months, notably from January to April and again in August, September, and October. The highest-risk months for UV exposure are January, February, and March, each with an index of 17, indicating an extreme risk where even brief exposure can lead to skin burns in as little as 10 minutes. As summer approaches, the index drops slightly—though still in the very high range—peaking in May, June, and July, with a burn time of 15 minutes. Residents and visitors are advised to take precautionary measures, including wearing sunscreen, protective clothing, and sunglasses, particularly during these high-risk months to minimize skin damage and maintain health.
UV Risk Categories
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Blantyre | 17 | 17 | 16 | 12 | 10 | 8 | 9 | 11 | 12 | 12 | 14 | 15 |
Zomba UVI | 17 | 17 | 16 | 13 | 10 | 9 | 9 | 11 | 13 | 13 | 15 | 15 |
Lilongwe UVI | 17 | 17 | 16 | 14 | 11 | 9 | 10 | 12 | 13 | 13 | 15 | 16 |
Mzuzu UVI | 16 | 16 | 16 | 15 | 11 | 10 | 10 | 12 | 13 | 13 | 14 | 16 |
Kasungu UVI | 16 | 17 | 16 | 14 | 11 | 9 | 10 | 12 | 13 | 13 | 15 | 16 |