Last updated: June 2, 2025
In Nyanguge, Tanzania, being aware of the UV Index is crucial for protecting your skin and overall health. The UV Index provides vital information about the strength of ultraviolet radiation on any given day, helping residents and visitors take necessary precautions against sunburn and long-term skin damage. Given Nyanguge's Aw climate, characterized by warm temperatures and significant sun exposure throughout the year, understanding UV levels is essential. On peak days, like when the index reaches as high as 11, the risks of harmful effects increase dramatically, making awareness and protective measures all the more important. Stay informed and enjoy the sun safely!
As the sun rises and warms the day, the UV Index begins at a mild 1 at 07:00 and 08:00, making it safe to venture outdoors without much protection. By 09:00, it jumps to a moderate 3, hinting at the increasing intensity. The real peak arrives between 11:00 and 13:00, where the index soars to an impressive 11, signifying a high risk of harm from unprotected sun exposure. As the afternoon rolls on, the index gradually dips, dropping to 10 at 14:00 and then descending through the late afternoon to 2 by 17:00. The sun sets the scene for a safe evening as the index returns to 1 at 18:00, finally resting at 0 by 19:00. This hourly dance of UV radiation highlights the importance of sun safety during those peak hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 3 | moderate | 30 min |
| 10:00 | 6 | high | 25 min |
| 11:00 | 9 | very high | 15 min |
| 12:00 | 11 | extreme | 10 min |
| 13:00 | 11 | extreme | 10 min |
| 14:00 | 10 | very high | 15 min |
| 15:00 | 7 | high | 25 min |
| 16:00 | 4 | moderate | 30 min |
| 17:00 | 2 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
Throughout the year, the UV Index remains at an extreme level, with values peaking during the early months. From January to March, the UV Index consistently reaches 16, indicating a high risk for sunburn within just 10 minutes of exposure. Although the index slightly decreases in April to 15, it remains perilously high, dropping only to 11 by June and July, then rising again in August and September. As fall approaches, the index remains above 10 through December. Given these trends, it is crucial for both residents and visitors to take precautions against sun exposure, especially in the high-risk months of January through March. Regular use of sunscreen, protective clothing, and avoiding direct sun exposure during peak hours are recommended to safeguard skin health year-round.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Zanzibar UVI | 14 | 14 | 14 | 14 | 12 | 10 | 10 | 12 | 13 | 13 | 13 | 13 |
| Dar es Salaam UVI | 14 | 14 | 15 | 14 | 12 | 10 | 10 | 12 | 13 | 13 | 13 | 13 |
| Mwanza UVI | 14 | 15 | 16 | 15 | 13 | 11 | 11 | 13 | 14 | 13 | 13 | 13 |
| Nyanguge | 14 | 16 | 16 | 15 | 13 | 11 | 11 | 13 | 14 | 13 | 13 | 13 |
| Arusha UVI | 15 | 16 | 16 | 16 | 14 | 12 | 12 | 13 | 14 | 14 | 13 | 14 |
| Mbeya UVI | 16 | 16 | 16 | 16 | 13 | 11 | 11 | 13 | 14 | 14 | 14 | 15 |