Solar flares on October 25, 2025
The most powerful solar flare in 24 hours
C1.6 (normal) flare - October 25 at 12:23 PM
Solar activity index
Value as of the end of the day on October 25, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from October 24, 2025 to October 25, 2025
Time zone — UTC+02 (Amsterdam) — summer time
List of solar flares for October 25, 2025
The total number of solar flares of class C and higher — 2 flares
C class — 2 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.3 | 13:01 | 13:12 | 13:28 | 4256 |
| C1.6 | 12:13 | 12:23 | 12:30 | 4267 |