Solar flares on June 30, 2025
The most powerful solar flare in 24 hours
C1.9 (normal) flare - June 30 at 2:34 PM
Solar activity index
Value as of the end of the day on June 30, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from June 29, 2025 to June 30, 2025
Time zone — UTC-04 (Toronto) — summer time
List of solar flares for June 30, 2025
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 |
|---|---|---|---|---|
| C1.1 | 19:57 | 20:02 | 20:05 | 4129 |
| C1.9 | 14:25 | 14:34 | 14:40 | 4130 |
| C1.1 | 13:59 | 14:05 | 14:16 | 4130 |
| C1.0 | 11:13 | 11:20 | 11:26 | 4130 |
| C1.4 | 09:20 | 09:27 | 09:34 | 4130 |
| C1.2 | 02:24 | 02:33 | 02:40 | 4122 |