Last updated: June 2, 2025
Understanding the UV Index in Abu, Japan is crucial for protecting your skin and overall health. With the region's Cfa climate, sun exposure can present significant risks, especially during peak hours when UV levels soar to 11. Being aware of these levels helps prevent sunburn and long-term skin damage, enabling residents and visitors alike to enjoy the beautiful outdoors safely. The UV Index reaches its highest points between 11:00 AM and 1:00 PM, making it essential to plan your sun exposure accordingly to safeguard your skin from harmful rays. Stay informed and prioritize your skin health as you bask in Abu's sunny days!
The UV Index today showcases a dynamic rise and fall throughout the hours, peaking at 11 from 12:00 PM to 1:00 PM. Starting from a gentle 2 at 7:00 AM, it climbs steadily, reaching 10 by 11:00 AM. As the sun approaches its zenith, the index hits its maximum of 11, indicating a high risk of harm from unprotected sun exposure. After this peak, the index begins its descent, tapering down to 6 at 3:00 PM before declining further to 2 by 5:00 PM. As evening sets in, it settles at a mild 1 from 6:00 PM onward, reminding us to take precautions when basking in the midday sun but allowing for safer outdoor activities as daylight fades.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 6 | high | 25 min |
| 10:00 | 8 | very high | 15 min |
| 11:00 | 10 | very high | 15 min |
| 12:00 | 11 | extreme | 10 min |
| 13:00 | 11 | extreme | 10 min |
| 14:00 | 9 | very high | 15 min |
| 15:00 | 6 | 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 |
As the year progresses, the UV Index reveals significant seasonal changes and highlights high-risk months for sun exposure. From January to February, the UV Index remains in the moderate range (4-5), with a burn time of 30 minutes. However, starting in March, the UV Index surges to 8, classified as very high, drastically reducing safe exposure time to just 15 minutes. The peak risk occurs between April and August, with the UV Index reaching up to 12 (extreme), necessitating protective measures after just 10 minutes of sun exposure. As summer transitions to fall, the UV Index begins to decline, with September still presenting a very high level (10), before settling into high levels in October and November (6-7) with safer burn times of 25 minutes. December marks the lowest UV levels at 3, re-entering the moderate range. Visitors and residents are advised to exercise caution during the high-risk months of April to August, employing sunscreen, seeking shade, and wearing protective clothing to minimize the risks associated with intense UV exposure.
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 |
| Abu | 4 | 5 | 8 | 11 | 11 | 11 | 12 | 12 | 10 | 7 | 6 | 3 |