Solar flares on December 3, 2025
The most powerful solar flare in 24 hours
M6.0 (strong) flare - December 3 at 8:50 PM
Solar activity index
Value as of the end of the day on December 3, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from December 2, 2025 to December 3, 2025
Time zone — UTC-06 (Saint Paul)
List of solar flares for December 3, 2025
The total number of solar flares of class C and higher — 10 flares
C class — 9 | M class — 1 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| M6.0 | 20:36 | 20:50 | 20:59 | 4300 |
| C9.2 | 18:11 | 18:16 | 18:19 | 4296 |
| C4.0 | 16:40 | 16:48 | 16:52 | 4298 |
| C3.6 | 16:16 | 16:22 | 16:29 | — |
| C3.9 | 15:23 | 15:31 | 15:34 | — |
| C3.0 | 13:57 | 14:03 | 14:07 | 4294 |
| C3.0 | 10:23 | 10:30 | 10:33 | 4294 |
| C3.3 | 09:52 | 10:02 | 10:23 | 4294 |
| C3.8 | 08:04 | 08:09 | 08:11 | — |
| C5.4 | 06:29 | 06:52 | 07:37 | — |