Last updated: June 2, 2025
Understanding the UV Index in Machalí, Chile is vital for ensuring your outdoor activities remain safe and enjoyable. With the region’s Csb climate, residents and visitors must be aware of the varying UV levels throughout the day, as even low levels can lead to skin damage and increase the risk of sunburn. Specifically, during peak hours between 11:00 AM and 1:00 PM, when the UV Index reaches levels of 3 to 4, it’s critical to take protective measures to safeguard your skin health. By staying informed about UV exposure risks, you can fully enjoy the beautiful outdoor scenery of Machalí while keeping your skin protected from harmful effects.
The UV Index for today paints a clear picture of sun intensity throughout the hours. Starting from a low of 0 at 07:00, the day gradually warms up, reaching 1 by 08:00 and maintaining that level until 09:00. As the sun climbs higher, we see a rise to 2 at 10:00 and peaking at 4 by 13:00—the most critical time for sun exposure. After this midday high, the index dips slightly to 3 between 14:00 and 12:00, before gradually decreasing towards the evening, arriving back at 0 by 19:00. Remember to protect your skin during the peak hours when the UV Index hits its highest levels!
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 0 | low | 45 min |
08:00 | 1 | low | 45 min |
09:00 | 1 | low | 45 min |
10:00 | 2 | low | 45 min |
11:00 | 3 | moderate | 30 min |
12:00 | 3 | moderate | 30 min |
13:00 | 4 | moderate | 30 min |
14:00 | 3 | moderate | 30 min |
15:00 | 2 | low | 45 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, with January, February, March, October, November, and December classified as high-risk months due to extreme levels, where a mere 10 minutes of exposure can lead to sunburn. April transitions to very high exposure with a 15-minute burn time, while May and June see a drop to moderate levels, allowing for safer exposure of 30 minutes. As summer progresses, July maintains a moderate index, but the risk increases again in August with a high category and a burn time of 25 minutes. September returns to very high levels, emphasizing caution. Visitors and residents should exercise heightened vigilance during these high-risk months by applying sunscreen, wearing protective clothing, and seeking shade, particularly from late fall through early spring when UV exposure remains dangerously high.
UV Risk Categories
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Santiago UVI | 14 | 12 | 11 | 7 | 5 | 3 | 4 | 6 | 8 | 11 | 12 | 14 |
Valparaiso UVI | 14 | 12 | 11 | 8 | 5 | 4 | 4 | 6 | 8 | 11 | 12 | 14 |
Vina del Mar UVI | 14 | 12 | 11 | 8 | 5 | 4 | 4 | 6 | 8 | 11 | 12 | 14 |
Machali | 14 | 13 | 11 | 8 | 5 | 4 | 4 | 6 | 8 | 11 | 13 | 14 |
Puente Alto UVI | 15 | 14 | 12 | 8 | 6 | 4 | 6 | 8 | 11 | 12 | 14 | 15 |
Antofagasta UVI | 15 | 15 | 13 | 10 | 8 | 6 | 7 | 9 | 11 | 14 | 15 | 15 |