Solar flares on December 29, 2025
The most powerful solar flare in 24 hours
C6.4 (normal) flare - December 29 at 12:40 PM
Solar activity index
Value as of the end of the day on December 29, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from December 28, 2025 to December 29, 2025
Time zone — UTC-08 (Kamloops)
List of solar flares for December 29, 2025
The total number of solar flares of class C and higher — 11 flares
C class — 11 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C3.7 | 14:26 | 14:30 | 14:37 | 4321 |
| C3.3 | 14:14 | 14:22 | 14:26 | 4324 |
| C6.4 | 12:36 | 12:40 | 12:43 | 4317 |
| C3.3 | 10:16 | 10:27 | 10:32 | 4324 |
| C3.5 | 10:03 | 10:11 | 10:16 | 4324 |
| C3.3 | 08:30 | 08:35 | 08:42 | 4324 |
| C3.0 | 05:10 | 05:14 | 05:18 | 4324 |
| C2.7 | 04:10 | 04:19 | 04:24 | 4325 |
| C3.8 | 01:43 | 01:47 | 01:52 | 4325 |
| C4.3 | 00:07 | 00:17 | 00:28 | 4325 |
| C2.6 | 23:57 | 00:03 | 00:07 | 4325 |