Solar flares on May 13, 2026
The most powerful solar flare in 24 hours
C2.3 (normal) flare - May 13 at 6:40 AM
Solar activity index
Value as of the end of the day on May 13, 2026
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from May 12, 2026 to May 13, 2026
Time zone — UTC+00
List of solar flares for May 13, 2026
The total number of solar flares of class C and higher — 6 flares
C class — 6 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.4 | 19:35 | 19:48 | 19:59 | 4432 |
| C1.4 | 18:00 | 18:05 | 18:09 | 4436 |
| C2.0 | 17:06 | 17:14 | 17:19 | 4436 |
| C1.5 | 10:28 | 10:36 | 10:39 | 4433 |
| C2.3 | 06:31 | 06:40 | 06:45 | 4436 |
| C2.1 | 01:43 | 01:54 | 02:01 | 4432 |