Solar flares on November 18, 2025
The most powerful solar flare in 24 hours
C2.2 (normal) flare - November 18 at 3:25 AM
Solar activity index
Value as of the end of the day on November 18, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from November 17, 2025 to November 18, 2025
Time zone — UTC+00 (London)
List of solar flares for November 18, 2025
The total number of solar flares of class C and higher — 7 flares
C class — 7 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.5 | 10:27 | 10:33 | 10:38 | 4284 |
| C1.5 | 05:30 | 05:35 | 05:38 | 4284 |
| C1.2 | 04:04 | 04:09 | 04:13 | 4284 |
| C2.2 | 03:06 | 03:25 | 03:34 | 4284 |
| C1.3 | 02:12 | 02:20 | 02:25 | 4284 |
| C1.3 | 01:38 | 01:41 | 01:44 | 4284 |
| C1.5 | 00:20 | 00:44 | 01:38 | — |