Solar flares on September 25, 2025
The most powerful solar flare in 24 hours
M1.6 (strong) flare - September 25 at 12:43 AM
Solar activity index
Value as of the end of the day on September 25, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 24, 2025 to September 25, 2025
Time zone — UTC+05:30 (Bilaspur)
List of solar flares for September 25, 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 |
|---|---|---|---|---|
| C2.2 | 23:45 | 23:52 | 00:00 | 4217 |
| C3.4 | 19:24 | 19:31 | 19:35 | 4217 |
| C1.9 | 18:12 | 18:21 | 18:27 | — |
| C2.1 | 17:56 | 18:03 | 18:12 | — |
| C2.3 | 15:59 | 16:07 | 16:24 | 4217 |
| C3.3 | 11:40 | 11:53 | 12:11 | 4224 |
| C3.6 | 09:30 | 09:39 | 09:46 | 4224 |
| C3.2 | 07:44 | 07:53 | 08:00 | 4224 |
| C4.6 | 04:44 | 04:52 | 04:59 | 4226 |
| M1.6 | 00:27 | 00:43 | 00:52 | 4224 |