Last updated: May 3, 2025
Understanding the UV Index is crucial for residents and visitors of Mzuzu, Malawi, where the sun's rays can be deceptively intense. With a Cwa climate characterized by distinct wet and dry seasons, Mzuzu experiences varying UV levels throughout the day—peaking at an impressive 11 between 11:00 AM and 12:00 PM. Being aware of these levels is vital, as it helps prevent sunburn and protects skin health, allowing everyone to enjoy the outdoors safely. With midday UV exposure risks climbing significantly, staying informed is your first line of defense against the harmful effects of the sun.
The UV Index paints a vivid picture of sun intensity throughout the day. Starting with a gentle 1 at 7:00 AM, the levels gradually rise, reaching a moderate 3 at 8:00 AM. By 9:00 AM, the UV Index surges to 6, signaling that sun safety precautions should be considered. The peak arrives at 11:00 AM and 12:00 PM, where it hits an intense 11, making midday an ideal time to seek shade or don protective clothing. As the afternoon progresses, the levels drop significantly to 7 at 2:00 PM and later back down to 3 by 3:00 PM. By the evening, the UV Index retreats to a minimal 1 at 4:00 PM, finally falling to 0 after 6:00 PM. Such dynamic fluctuations remind us to stay vigilant and enjoy the sun responsibly!
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 1 | low | 45 min |
08:00 | 3 | moderate | 30 min |
09:00 | 6 | high | 25 min |
10:00 | 9 | very high | 15 min |
11:00 | 11 | extreme | 10 min |
12:00 | 11 | extreme | 10 min |
13:00 | 10 | very high | 15 min |
14:00 | 7 | high | 25 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 |
Throughout the year, the UV Index reflects significant seasonal changes, with extreme exposure levels dominating from January to April and then again in August to November, maintaining a consistent Burn time of 10 minutes during these months. May marks a slight decrease to a very high category with a Burn time of 15 minutes, while June and July also register as very high but with slightly longer safe exposure periods. Notably, the high-risk months for UV exposure include January through April and August through November, making it essential for both visitors and residents to take appropriate precautions. To protect against sun damage, it is advisable to wear protective clothing, apply sunscreen regularly, and seek shade during peak sun hours, especially from mid-morning to mid-afternoon when UV radiation levels are at their highest.
UV Risk Categories
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Blantyre UVI | 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 | 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 |