Solar flares on July 31, 2025
The most powerful solar flare in 24 hours
C2.4 (normal) flare - July 31 at 11:39 PM
Solar activity index
Value as of the end of the day on July 31, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from July 30, 2025 to July 31, 2025
Time zone — UTC-04 (Columbus) — summer time
List of solar flares for July 31, 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 |
|---|---|---|---|---|
| C2.4 | 23:23 | 23:39 | 23:54 | 4149 |
| C1.7 | 22:42 | 22:45 | 22:50 | 4167 |
| C2.0 | 21:52 | 21:54 | 22:02 | 4167 |
| C1.6 | 21:45 | 21:49 | 21:52 | 4167 |
| C1.9 | 17:55 | 17:59 | 18:04 | 4167 |
| C1.3 | 15:47 | 15:51 | 16:00 | — |
| C1.6 | 14:29 | 14:52 | 15:03 | 4153 |
| C1.7 | 11:30 | 11:43 | 11:53 | 4155 |
| C1.5 | 10:34 | 10:53 | 11:11 | 4153 |
| C1.4 | 06:11 | 06:20 | 06:25 | 4153 |