Solar flares on September 30, 2025
The most powerful solar flare in 24 hours
M2.7 (strong) flare - September 30 at 3:10 PM
Solar activity index
Value as of the end of the day on September 30, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 29, 2025 to September 30, 2025
Time zone — UTC+05:30 (Kankuria)
List of solar flares for September 30, 2025
The total number of solar flares of class C and higher — 11 flares
C class — 8 | M class — 3 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| M1.8 | 17:32 | 17:57 | 18:18 | 4238 |
| M2.7 | 14:59 | 15:10 | 15:15 | 4226 |
| C2.8 | 14:45 | 14:51 | 14:54 | 4236 |
| C3.6 | 10:13 | 10:16 | 10:18 | 4236 |
| C3.8 | 09:59 | 10:07 | 10:13 | 4236 |
| C5.8 | 07:30 | 07:44 | 07:57 | — |
| M1.2 | 06:21 | 06:26 | 06:28 | 4232 |
| C3.0 | 05:49 | 05:53 | 06:04 | 4230 |
| C3.8 | 04:14 | 04:20 | 04:23 | 4232 |
| C3.5 | 01:57 | 02:02 | 02:07 | 4232 |
| C3.9 | 01:36 | 01:41 | 01:46 | 4236 |