Last updated: July 2, 2025
Understanding the UV Index in Sakawa, Japan is crucial for maintaining skin health and preventing harmful sunburns. As residents enjoy the town's beautiful Cfa climate, characterized by warm summers and mild winters, awareness of UV levels becomes even more vital. The UV Index can soar dramatically during midday, peaking at 12, which indicates an extreme risk of harm from unprotected sun exposure. By staying informed about UV levels, you can take proactive measures to protect your skin and ensure an enjoyable outdoor experience in Sakawa.
The UV Index data reveals a notable progression in sun exposure throughout the day. Starting at a modest 2 at 7:00 AM, it quickly escalates, peaking at a striking 12 by noon, indicating a high risk for harm from unprotected sun exposure. As the afternoon unfolds, the index gradually recedes, dropping to 9 at 2:00 PM and further decreasing to 1 by 7:00 PM. This pattern suggests that the sun’s intensity is at its most dangerous during the late morning and early afternoon, emphasizing the importance of sunscreen and protective measures during these critical hours. Stay safe under the sun!
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 2 | low | 45 min |
08:00 | 4 | moderate | 30 min |
09:00 | 6 | high | 25 min |
10:00 | 9 | very high | 15 min |
11:00 | 11 | extreme | 10 min |
12:00 | 12 | extreme | 10 min |
13:00 | 11 | extreme | 10 min |
14:00 | 9 | 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 | 1 | low | 45 min |
Throughout the year, the UV Index demonstrates significant seasonal changes, notably peaking during the summer months. From January to February, UV exposure is moderate, but by March and April, the index escalates to very high levels, indicating a rapid increase in UV radiation. The period from May to August showcases the highest risk, classified as extreme, with a burn time of just 10 minutes—making these months particularly hazardous for skin exposure. As summer wanes into September and October, the UV levels remain very high, though they start to gradually decline. November and December see a return to moderate exposure levels. Visitors and residents are advised to take precautions especially during the high-risk months of May through August, such as wearing protective clothing, applying sunscreen regularly, and seeking shade during peak hours to minimize UV-related health risks.
UV Risk Categories
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Sapporo UVI | 2 | 3 | 6 | 7 | 9 | 9 | 9 | 10 | 8 | 5 | 3 | 2 |
Yokohama UVI | 3 | 5 | 8 | 9 | 11 | 11 | 11 | 11 | 10 | 7 | 5 | 4 |
Tokyo UVI | 3 | 5 | 8 | 9 | 11 | 11 | 11 | 11 | 10 | 7 | 5 | 4 |
Nagoya UVI | 4 | 6 | 8 | 10 | 11 | 11 | 11 | 11 | 10 | 7 | 5 | 3 |
Osaka UVI | 4 | 6 | 8 | 11 | 11 | 11 | 12 | 11 | 10 | 7 | 5 | 3 |
Sakawa | 4 | 6 | 9 | 10 | 12 | 12 | 12 | 12 | 10 | 8 | 6 | 4 |