Solar flares on May 31, 2026
The most powerful solar flare in 24 hours
C3.1 (normal) flare - May 31 at 4:09 AM
Solar activity index
Value as of the end of the day on May 31, 2026
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from May 30, 2026 to May 31, 2026
Time zone — UTC+02 (Vaduz) — summer time
List of solar flares for May 31, 2026
The total number of solar flares of class C and higher — 15 flares
C class — 15 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.9 | 23:42 | 23:53 | 00:11 | 4457 |
| C1.5 | 21:39 | 21:43 | 21:47 | 4446 |
| C1.7 | 20:31 | 20:36 | 20:39 | 4457 |
| C1.5 | 19:56 | 20:10 | 20:28 | 4461 |
| C1.1 | 14:46 | 14:51 | 14:53 | 4455 |
| C1.0 | 14:37 | 14:43 | 14:46 | 4449 |
| C1.0 | 12:12 | 12:14 | 12:17 | 4446 |
| C1.1 | 10:59 | 11:10 | 11:27 | 4455 |
| C1.2 | 10:02 | 10:07 | 10:10 | 4449 |
| C1.8 | 06:44 | 06:49 | 07:00 | 4452 |
| C1.5 | 06:22 | 06:36 | 06:44 | 4449 |
| C1.2 | 04:53 | 05:05 | 05:19 | 4452 |
| C3.1 | 03:59 | 04:09 | 04:12 | 4447 |
| C1.2 | 00:30 | 00:37 | 00:39 | — |
| C1.0 | 00:23 | 00:28 | 00:30 | 4457 |