Solar flares on May 16, 2026
The most powerful solar flare in 24 hours
M1.9 (strong) flare - May 16 at 5:42 PM
Solar activity index
Value as of the end of the day on May 16, 2026
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from May 15, 2026 to May 16, 2026
Time zone — UTC+00
List of solar flares for May 16, 2026
The total number of solar flares of class C and higher — 9 flares
C class — 6 | M class — 3 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C5.8 | 23:13 | 23:30 | 23:38 | 4435 |
| C1.4 | 22:22 | 22:26 | 22:30 | 4439 |
| C3.5 | 19:57 | 20:03 | 20:09 | 4435 |
| C2.5 | 19:02 | 19:07 | 19:11 | 4435 |
| M1.9 | 17:39 | 17:42 | 17:44 | 4435 |
| M1.3 | 16:22 | 16:29 | 16:34 | 4436 |
| M1.9 | 15:50 | 16:12 | 16:22 | 4436 |
| C3.4 | 15:08 | 15:12 | 15:16 | 4435 |
| C1.1 | 14:19 | 14:39 | 14:56 | 4436 |