Solar flares on September 3, 2025
The most powerful solar flare in 24 hours
C4.9 (normal) flare - September 3 at 1:50 AM
Solar activity index
Value as of the end of the day on September 3, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 2, 2025 to September 3, 2025
Time zone — UTC+02 (Rome) — summer time
List of solar flares for September 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 |
|---|---|---|---|---|
| C2.3 | 23:22 | 23:30 | 23:36 | 4211 |
| C2.9 | 21:12 | 21:21 | 21:31 | 4207 |
| C3.7 | 17:13 | 17:23 | 17:31 | 4211 |
| C2.5 | 07:36 | 07:42 | 07:51 | 4197 |
| C2.9 | 05:56 | 05:59 | 06:01 | 4210 |
| C2.8 | 04:37 | 04:41 | 04:44 | 4210 |
| C2.7 | 02:52 | 02:56 | 03:00 | 4210 |
| C3.0 | 02:30 | 02:35 | 02:41 | 4197 |
| C2.7 | 02:06 | 02:10 | 02:22 | 4197 |
| C4.9 | 01:46 | 01:50 | 01:57 | 4197 |