Solar flares on July 31, 2025
The most powerful solar flare in 24 hours
C1.9 (normal) flare - July 31 at 9:59 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+00
List of solar flares for July 31, 2025
The total number of solar flares of class C and higher — 7 flares
C class — 7 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.9 | 21:55 | 21:59 | 22:04 | 4167 |
| C1.3 | 19:47 | 19:51 | 20:00 | — |
| C1.6 | 18:29 | 18:52 | 19:03 | 4153 |
| C1.7 | 15:30 | 15:43 | 15:53 | 4155 |
| C1.5 | 14:34 | 14:53 | 15:11 | 4153 |
| C1.4 | 10:11 | 10:20 | 10:25 | 4153 |
| C1.4 | 02:36 | 02:42 | 02:46 | 4154 |