Solar flares on March 18, 2026
The most powerful solar flare in 24 hours
M2.7 (strong) flare - March 18 at 9:42 AM
Solar activity index
Value as of the end of the day on March 18, 2026
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from March 17, 2026 to March 18, 2026
Time zone — UTC+01 (Budapest)
List of solar flares for March 18, 2026
The total number of solar flares of class C and higher — 9 flares
C class — 8 | M class — 1 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.0 | 17:45 | 17:54 | 17:58 | 4392 |
| C3.6 | 13:53 | 14:11 | 14:21 | 4392 |
| C2.8 | 10:48 | 11:02 | 11:12 | 4392 |
| M2.7 | 09:26 | 09:42 | 09:57 | 4392 |
| C2.7 | 07:44 | 07:59 | 08:09 | 4392 |
| C1.2 | 05:23 | 05:34 | 05:37 | 4397 |
| C1.1 | 04:58 | 05:19 | 05:23 | 4397 |
| C1.0 | 03:42 | 03:51 | 04:09 | 4393 |
| C3.9 | 01:59 | 02:23 | 02:33 | 4392 |