Last updated: August 1, 2025
Understanding the UV Index in Arena Baja, Peru is crucial for protecting your skin against harmful ultraviolet rays. With average UV levels peaking at 10 during the midday hours, awareness of these fluctuations can help prevent sunburn and promote long-term skin health. Arena Baja's arid climate intensifies UV exposure risks, making it vital for residents and visitors alike to monitor daily UV forecasts and take appropriate sun safety measures. By being informed about local UV conditions, you can enjoy the sun while safeguarding your skin from potential damage.
The hourly UV Index reveals a dynamic range of sun exposure today. Starting off at a gentle 1 at 7:00 AM, the index steadily climbs, peaking at a striking 10 by 12:00 PM—the peak exposure time. As the sun reaches its zenith, caution is advised for outdoor activities during the 11:00 AM to 1:00 PM window when the index remains high at 9 and 10. Following this midday surge, the index gracefully descends; by 3:00 PM, it dips to 4 and continues to decline to 1 by 5:00 PM. Finally, after a brief respite, the UV rays fade to 0 by 6:00 PM, signaling a safe return for evening outdoor plans. Stay sun-smart and enjoy the day wisely!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 5 | moderate | 30 min |
| 10:00 | 8 | very high | 15 min |
| 11:00 | 10 | very high | 15 min |
| 12:00 | 11 | extreme | 10 min |
| 13:00 | 10 | very high | 15 min |
| 14:00 | 8 | very high | 15 min |
| 15:00 | 5 | moderate | 30 min |
| 16:00 | 2 | low | 45 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 0 | low | 45 min |
| 19:00 | 0 | low | 45 min |
The UV Index experiences significant seasonal variation, with some months posing a higher risk for sun exposure. From January to March, the UV Index remains at a striking 15, classified as extreme, indicating a burn time of just 10 minutes. April sees a slight decrease to 13, but still retains an extreme risk level. The index dips to 11 in May, then further reduces to 9 in June and 10 in July, categorizing these months as very high risk, with a burn time of 15 minutes. As summer closes out, August jumps back to an extreme index of 11, while September and October fluctuate between 13 and 14, both remaining in the extreme category with a burn time of 10 minutes. November returns to 15, and December settles at 14, both of which also represent extreme levels of UV exposure. Visitors and residents should be particularly cautious from January to March and again in November, ensuring to take preventive measures against sunburn, such as wearing protective clothing, using high-SPF sunscreen, and seeking shade during peak sunlight hours.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Callao UVI | 14 | 14 | 14 | 12 | 10 | 9 | 10 | 11 | 12 | 13 | 14 | 13 |
| Lima UVI | 14 | 14 | 14 | 12 | 10 | 9 | 10 | 11 | 12 | 13 | 14 | 13 |
| Arena Baja | 15 | 15 | 15 | 13 | 11 | 9 | 10 | 11 | 13 | 14 | 15 | 14 |
| Trujillo UVI | 15 | 15 | 15 | 14 | 12 | 11 | 11 | 11 | 13 | 14 | 14 | 14 |
| Chiclayo UVI | 14 | 15 | 15 | 14 | 13 | 11 | 11 | 12 | 15 | 14 | 14 | 13 |
| Arequipa UVI | 18 | 17 | 17 | 15 | 12 | 10 | 11 | 13 | 15 | 17 | 18 | 17 |