Solar flares on December 3, 2025
The most powerful solar flare in 24 hours
C5.4 (normal) flare - December 3 at 1:52 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+01 (Oslo)
List of solar flares for December 3, 2025
The total number of solar flares of class C and higher — 10 flares
C class — 10 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C4.0 | 23:40 | 23:48 | 23:52 | 4298 |
| C3.6 | 23:16 | 23:22 | 23:29 | — |
| C3.9 | 22:23 | 22:31 | 22:34 | — |
| C3.0 | 20:57 | 21:03 | 21:07 | 4294 |
| C3.0 | 17:23 | 17:30 | 17:33 | 4294 |
| C3.3 | 16:52 | 17:02 | 17:23 | 4294 |
| C3.8 | 15:04 | 15:09 | 15:11 | — |
| C5.4 | 13:29 | 13:52 | 14:37 | — |
| C2.8 | 04:47 | 04:55 | 05:00 | 4299 |
| C2.7 | 03:16 | 03:23 | 03:26 | 4297 |