Solar flares on June 3, 2026
The most powerful solar flare in 24 hours
X1.0 (very strong) flare - June 3 at 12:28 PM
Solar activity index
Value as of the end of the day on June 3, 2026
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from June 2, 2026 to June 3, 2026
Time zone — UTC+01 (London) — summer time
List of solar flares for June 3, 2026
The total number of solar flares of class C and higher — 12 flares
C class — 9 | M class — 2 | X class — 1
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.8 | 21:46 | 21:52 | 21:55 | 4455 |
| C1.5 | 20:21 | 20:26 | 20:32 | 4455 |
| C1.7 | 16:27 | 16:36 | 16:45 | 4455 |
| C1.4 | 13:21 | 13:29 | 13:35 | 4455 |
| X1.0 | 12:19 | 12:28 | 12:35 | 4455 |
| C2.4 | 11:53 | 11:59 | 12:08 | 4455 |
| M7.7 | 07:49 | 08:00 | 08:07 | 4455 |
| C2.1 | 05:50 | 05:55 | 05:59 | 4455 |
| C1.8 | 04:24 | 04:34 | 04:41 | 4449 |
| M9.3 | 02:22 | 02:36 | 02:43 | 4455 |
| C2.0 | 02:11 | 02:15 | 02:18 | — |
| C4.0 | 01:22 | 01:46 | 01:56 | — |