Last updated: July 2, 2025
Understanding the UV Index in Yogyakarta, Indonesia is crucial for protecting your skin and overall health. With the city’s tropical climate, the sun's rays can be particularly intense, especially during midday hours when UV levels soar to 11, indicating a very high risk of harm from unprotected sun exposure. Awareness of the UV Index helps residents and visitors alike make informed decisions to prevent sunburn and long-term skin damage. By checking the UV levels throughout the day, particularly between 10 AM and 2 PM, you can take necessary precautions to enjoy the vibrant culture and beauty of Yogyakarta while safeguarding your skin’s health.
The UV Index for the day tells an illuminating story of sun intensity. Early risers at 07:00 will find a mild UV level of 1, perfect for a leisurely morning stroll. However, as the sun climbs, things heat up, peaking at 11 by 11:00 and 12:00, indicating a high risk of harm from unprotected sun exposure. It’s the ideal time for sunscreen and protective gear! Post-lunch, the index begins to drop, tapering off to 4 by 15:00, and a much more manageable 1 by the evening hours. As twilight approaches, the UV Index decreases to 0 by 18:00, providing a safe haven for an evening out without the sun's glare. Remember to plan your outdoor activities around this UV profile to stay safe while enjoying the sunshine!
| 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 | 1 | low | 45 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 0 | low | 45 min |
| 19:00 | 0 | low | 45 min |
During the year, UV levels are notably high, particularly from January to March and then again in September and October, where the UV Index reaches extreme levels of 15 to 16. The highest risk months for UV exposure are therefore deemed to be February, March, and October, where the UV Index consistently hits 16. Even during the summer months, such as June and July, the exposure category remains high, with burn times dropping to about 10-15 minutes depending on the month. As such, it is essential for both visitors and residents to take precautionary measures during these high-risk periods. Wearing sunscreen with a high SPF, donning protective clothing, and seeking shade during peak hours are highly advised to lower the risk of overexposure and skin damage. Stay vigilant and safe in the sun!
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 |
| Bandung UVI | 15 | 16 | 16 | 15 | 12 | 11 | 11 | 12 | 14 | 15 | 15 | 14 |
| Yogyakarta | 15 | 16 | 16 | 14 | 13 | 10 | 11 | 13 | 15 | 16 | 15 | 14 |