Solar flares on August 20, 2026
The most powerful solar flare in 24 hours
M8.1 (strong) flare - August 20 at 1:42 PM
Solar activity index
Value as of the end of the day on August 20, 2026
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from August 19, 2026 to August 20, 2026
Time zone — UTC+02 (Prague)
List of solar flares for August 20, 2026
The total number of solar flares of class C and higher — 18 flares
C class — 15 | M class — 3 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.7 | 22:58 | 23:08 | 23:13 | 4513 |
| C2.0 | 22:03 | 22:08 | 22:10 | 4513 |
| C1.8 | 21:39 | 21:54 | 22:03 | 4513 |
| C2.6 | 19:45 | 19:52 | 20:03 | 4507 |
| C2.4 | 19:17 | 19:22 | 19:26 | 4513 |
| M2.9 | 17:52 | 18:11 | 18:21 | 4513 |
| M8.1 | 13:32 | 13:42 | 13:54 | 4513 |
| C8.0 | 13:19 | 13:29 | 13:32 | — |
| C2.4 | 12:12 | 12:19 | 12:24 | 4507 |
| M1.8 | 09:31 | 10:05 | 10:17 | 4513 |
| C1.5 | 08:27 | 08:31 | 08:33 | 4507 |
| C3.1 | 06:37 | 06:49 | 06:56 | 4513 |
| C3.3 | 05:59 | 06:08 | 06:10 | 4507 |
| C1.5 | 05:36 | 05:43 | 05:49 | 4513 |
| C2.0 | 03:00 | 03:04 | 03:08 | 4513 |
| C1.7 | 02:41 | 02:49 | 02:57 | 4513 |
| C2.0 | 01:46 | 01:54 | 02:04 | 4513 |
| C1.7 | 23:51 | 00:00 | 00:06 | — |