Solar flares on May 16, 2026
The most powerful solar flare in 24 hours
M1.9 (strong) flare - May 16 at 3:12 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-02:30 (Saint john's) — summer time
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 | 20:43 | 21:00 | 21:08 | 4435 |
| C1.4 | 19:52 | 19:56 | 20:00 | 4439 |
| C3.5 | 17:27 | 17:33 | 17:39 | 4435 |
| C2.5 | 16:32 | 16:37 | 16:41 | 4435 |
| M1.9 | 15:09 | 15:12 | 15:14 | 4435 |
| M1.3 | 13:52 | 13:59 | 14:04 | 4436 |
| M1.9 | 13:20 | 13:42 | 13:52 | 4436 |
| C3.4 | 12:38 | 12:42 | 12:46 | 4435 |
| C1.1 | 11:49 | 12:09 | 12:26 | 4436 |