Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors in Salatiga, Indonesia, where sunlight can be both a blessing and a risk. With high humidity and an Af climate classification, Salatiga experiences significant UV exposure, particularly between 10 AM and 1 PM, when the index peaks at a staggering 11. By being aware of UV levels, you can effectively prevent sunburn and promote better skin health. Knowing when to seek shade or apply sunscreen can make all the difference in enjoying the beautiful sunny days while protecting your skin from potential harm. Stay informed, stay safe, and embrace the vibrant warmth of Salatiga!
The UV Index (UVI) throughout the day reveals a dynamic pattern of sun exposure. Beginning at 07:00, the index starts modestly at 1, but by 08:00, it gains momentum, reaching 3. The real intensity kicks in around 09:00, with a notable 6, peaking at 11:00 and 12:00 with a maximum UV index of 11, signaling the most hazardous hours for sun exposure. As the afternoon progresses to 13:00, the index begins to decline, dropping back to 9 at this hour. By 14:00, it eases further to 7 and continues its descent, settling at 4 by 15:00. As the day winds down, the readings fall to 2 by 16:00, tapering to a gentle 1 at 17:00, and finally retreating to 0 by 18:00 and 19:00. This journey through the UV Index highlights the importance of sun protection, particularly during those peak hours when it reaches its zenith.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 6 | high | 25 min |
| 10:00 | 9 | very high | 15 min |
| 11:00 | 11 | extreme | 10 min |
| 12:00 | 11 | extreme | 10 min |
| 13:00 | 9 | very high | 15 min |
| 14:00 | 7 | high | 25 min |
| 15:00 | 4 | 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 shows significant seasonal variations, with the highest risk months occurring from January to April where the index remains consistently in the extreme range (14-16) and a rapid burn time of only 10 minutes. As we transition into May and June, the index slightly decreases, moving to a very high level (10-13) but still necessitating caution, with burn times extending to 15 minutes in June. The risk escalates again in July, August, September, and October, with the index peaking back at 14-15 in September and October, prompting the same quick burn time of 10 minutes. November and December maintain a steady high UV index of 14, emphasizing the need for protection throughout the year. Visitors and residents should take precautionary measures, including wearing sunscreen, protective clothing, and seeking shade, particularly during the peak months of January through April and July through October to minimize the risk of harmful UV exposure.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Surabaya UVI | 13 | 15 | 14 | 12 | 12 | 10 | 11 | 12 | 14 | 13 | 13 | 13 |
| Bekasi UVI | 14 | 16 | 16 | 14 | 11 | 10 | 10 | 11 | 13 | 15 | 14 | 13 |
| Jakarta UVI | 14 | 16 | 16 | 14 | 11 | 10 | 10 | 11 | 13 | 15 | 14 | 13 |
| Medan UVI | 13 | 15 | 15 | 15 | 14 | 12 | 12 | 13 | 14 | 14 | 13 | 12 |
| Salatiga | 14 | 16 | 15 | 14 | 13 | 10 | 11 | 13 | 14 | 15 | 14 | 14 |
| Bandung UVI | 15 | 16 | 16 | 15 | 12 | 11 | 11 | 12 | 14 | 15 | 15 | 14 |