Solar flares on January 18, 2026
The most powerful solar flare in 24 hours
X1.9 (very strong) flare - January 18 at 9:09 PM
Solar activity index
Value as of the end of the day on January 18, 2026
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from January 17, 2026 to January 18, 2026
Time zone — UTC+03 (Moscow)
List of solar flares for January 18, 2026
The total number of solar flares of class C and higher — 10 flares
C class — 8 | M class — 1 | X class — 1
| Class | begin | max | end | region |
|---|---|---|---|---|
| X1.9 | 20:27 | 21:09 | 21:51 | 4341 |
| C2.5 | 19:31 | 19:37 | 19:43 | 4341 |
| C2.3 | 16:59 | 17:04 | 17:10 | — |
| C2.2 | 14:42 | 14:48 | 14:55 | — |
| C7.1 | 09:01 | 09:20 | 09:32 | 4341 |
| C2.7 | 06:53 | 07:08 | 07:22 | — |
| C1.7 | 06:41 | 06:49 | 06:53 | 4342 |
| C1.5 | 06:06 | 06:11 | 06:17 | 4342 |
| M1.1 | 02:46 | 02:51 | 02:54 | 4341 |
| C8.4 | 02:32 | 02:42 | 02:46 | 4341 |