Solar flares on August 28, 2025
The most powerful solar flare in 24 hours
M1.5 (strong) flare - August 28 at 6:10 PM
Solar activity index
Value as of the end of the day on August 28, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from August 27, 2025 to August 28, 2025
Time zone — UTC-02:30 (Saint john's) — summer time
List of solar flares for August 28, 2025
The total number of solar flares of class C and higher — 16 flares
C class — 12 | M class — 4 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C5.3 | 23:30 | 23:34 | 23:37 | 4197 |
| C5.3 | 23:02 | 23:13 | 23:30 | 4197 |
| C6.9 | 22:08 | 22:14 | 22:27 | 4203 |
| C6.5 | 21:47 | 21:58 | 22:08 | 4195 |
| C7.0 | 20:05 | 20:12 | 20:15 | 4201 |
| C5.5 | 19:15 | 19:24 | 19:43 | 4204 |
| M1.5 | 18:00 | 18:10 | 18:16 | 4203 |
| C6.0 | 17:43 | 17:57 | 18:00 | 4197 |
| M1.0 | 16:18 | 16:33 | 16:39 | 4197 |
| C3.6 | 15:40 | 15:47 | 15:53 | — |
| M1.2 | 14:30 | 14:41 | 14:47 | 4203 |
| C4.9 | 12:43 | 12:50 | 13:04 | 4203 |
| M1.1 | 11:41 | 11:46 | 11:52 | 4197 |
| C8.5 | 11:30 | 11:37 | 11:41 | 4197 |
| C4.8 | 07:53 | 07:58 | 08:03 | 4203 |
| C4.5 | 01:00 | 01:09 | 01:26 | 4203 |