Solar flares on December 31, 2025
The most powerful solar flare in 24 hours
C9.6 (normal) flare - December 31 at 8:25 PM
Solar activity index
Value as of the end of the day on December 31, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from December 30, 2025 to December 31, 2025
Time zone — UTC-06 (Baton Rouge)
List of solar flares for December 31, 2025
The total number of solar flares of class C and higher — 4 flares
C class — 4 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.0 | 23:34 | 23:37 | 23:42 | 4325 |
| C9.6 | 20:15 | 20:25 | 20:33 | 4325 |
| C1.8 | 19:19 | 19:24 | 19:28 | 4317 |
| C1.7 | 18:56 | 19:03 | 19:08 | 4324 |