Solar flares on August 3, 2025
The most powerful solar flare in 24 hours
M2.9 (strong) flare - August 3 at 9:57 AM
Solar activity index
Value as of the end of the day on August 3, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from August 2, 2025 to August 3, 2025
Time zone — UTC-04 (Quebec) — summer time
List of solar flares for August 3, 2025
The total number of solar flares of class C and higher — 19 flares
C class — 18 | M class — 1 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.8 | 23:14 | 23:20 | 23:22 | 4168 |
| C8.7 | 21:24 | 21:30 | 21:34 | 4168 |
| C2.2 | 20:16 | 20:22 | 20:28 | — |
| C6.8 | 17:43 | 17:56 | 18:10 | 4157 |
| C1.6 | 15:29 | 15:36 | 15:39 | 4168 |
| C3.5 | 13:03 | 13:14 | 13:27 | 4153 |
| C1.9 | 11:03 | 11:10 | 11:17 | 4153 |
| M2.9 | 09:50 | 09:57 | 10:01 | 4168 |
| C2.6 | 09:37 | 09:47 | 09:50 | 4168 |
| C1.6 | 08:27 | 08:55 | 09:10 | 4168 |
| C3.5 | 05:17 | 05:29 | 05:35 | 4167 |
| C2.6 | 04:56 | 05:11 | 05:17 | 4167 |
| C2.4 | 04:00 | 04:21 | 04:45 | 4155 |
| C1.8 | 03:11 | 03:21 | 03:30 | — |
| C1.5 | 02:23 | 02:30 | 02:34 | 4168 |
| C1.2 | 01:30 | 01:36 | 01:43 | 4153 |
| C1.3 | 01:08 | 01:13 | 01:20 | — |
| C1.4 | 00:49 | 00:55 | 01:07 | 4167 |
| C1.5 | 00:20 | 00:36 | 00:46 | 4168 |