Solar flares on September 3, 2025
The most powerful solar flare in 24 hours
C4.9 (normal) flare - September 3 at 12:50 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+01 (London) — 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 | 22:22 | 22:30 | 22:36 | 4211 |
| C2.9 | 20:12 | 20:21 | 20:31 | 4207 |
| C3.7 | 16:13 | 16:23 | 16:31 | 4211 |
| C2.5 | 06:36 | 06:42 | 06:51 | 4197 |
| C2.9 | 04:56 | 04:59 | 05:01 | 4210 |
| C2.8 | 03:37 | 03:41 | 03:44 | 4210 |
| C2.7 | 01:52 | 01:56 | 02:00 | 4210 |
| C3.0 | 01:30 | 01:35 | 01:41 | 4197 |
| C2.7 | 01:06 | 01:10 | 01:22 | 4197 |
| C4.9 | 00:46 | 00:50 | 00:57 | 4197 |