Last updated: June 2, 2025
Understanding the UV Index is crucial for residents of Jojoima, Sierra Leone, where the tropical climate typically leads to heightened sun exposure throughout the year. As UV levels can soar, peaking at a dangerous 12 during midday, being aware of these fluctuations is vital for prevention against sunburn and protecting skin health. With summer temperatures and a consistent Am climate zone, the risks associated with UV radiation can be significant. Staying informed about the UV Index not only helps you enjoy the sun safely but also empowers you to take necessary precautions to safeguard your skin health.
As the sun rises, the UV Index begins its climb, peaking with intensity around noon. Starting at a mere 1 at 07:00, it escalates to a moderate 4 by 09:00, reaching 10 by 11:00 and peaking at 12 from 12:00 to 13:00. This midday zenith signals the need for protection; without it, prolonged exposure could be harmful. By the afternoon, the numbers gradually dip, falling to 8 at 15:00, then to 5 by 16:00. As the day winds down, the UV strength diminishes, settling back at 1 by 18:00 and dropping to 0 by 19:00, reminding us that while the sun shines bright, it’s wise to seek shade during the peak hours. Stay safe and smart about sun exposure!
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 | 10 | very high | 15 min |
12:00 | 12 | extreme | 10 min |
13:00 | 12 | extreme | 10 min |
14:00 | 11 | extreme | 10 min |
15:00 | 8 | very high | 15 min |
16:00 | 5 | moderate | 30 min |
17:00 | 2 | low | 45 min |
18:00 | 1 | low | 45 min |
19:00 | 0 | low | 45 min |
The UV Index demonstrates significant seasonal variation, with extreme levels persisting from January through October, marked by an emphasis on the high-risk months of April to September, when the UV Index peaks at 13. During this period, even brief exposure of 10 minutes can lead to sunburn. As winter approaches, a decrease in UV intensity occurs, with November and December presenting a very high severity of 10 and a slightly longer burn time of 15 minutes. Visitors and residents are strongly advised to take precautions during peak UV months by wearing protective clothing, applying sunscreen, and seeking shade to minimize risk. Staying informed and vigilant about UV levels is crucial for skin health year-round.
UV Risk Categories
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Freetown UVI | 10 | 11 | 11 | 12 | 13 | 12 | 13 | 13 | 13 | 12 | 10 | 9 |
Bo UVI | 10 | 11 | 11 | 13 | 13 | 12 | 12 | 13 | 13 | 12 | 10 | 10 |
Makeni UVI | 10 | 11 | 11 | 12 | 13 | 13 | 13 | 13 | 14 | 12 | 10 | 9 |
Kenema UVI | 11 | 11 | 11 | 13 | 13 | 12 | 13 | 13 | 13 | 12 | 10 | 10 |
Jojoima | 11 | 11 | 12 | 13 | 13 | 12 | 13 | 13 | 13 | 12 | 10 | 10 |
Koidu UVI | 11 | 11 | 12 | 13 | 13 | 13 | 13 | 13 | 14 | 12 | 10 | 10 |