Solar flares — Dec 20, 2025
The strongest solar flare in the day
Flare of M1.0 level (strong) — in 07:53
Solar activity index
Value for Dec 20, 2025 24:00 (end on the day). The maximum value is 10.0
Solar flares in 2 days
Chart of solar activity from Dec 19, 2025 to Dec 20, 2025
Time zone — UTC+00 (London)
This chart in PNG format — high resolution
API data: JSON or TXT
List of solar flares for Dec 20, 2025
Total number of flares of class C and higher — 10 flares
C type — 9 | M type — 1 | X type — 0
| start | maximum | end | region | |
|---|---|---|---|---|
|
C1.3
|
23:10 | 23:20 | 23:30 | 4317 |
|
C3.1
|
19:58 | 20:05 | 20:07 | — |
|
C2.8
|
19:48 | 19:55 | 19:58 | 4317 |
|
C2.7
|
19:15 | 19:28 | 19:39 | 4314 |
|
M1.0
|
07:36 | 07:53 | 08:06 | 4315 |
|
C1.4
|
06:52 | 07:06 | 07:25 | 4315 |
|
C1.3
|
06:08 | 06:14 | 06:23 | 4315 |
|
C1.2
|
05:42 | 05:46 | 05:49 | — |
|
C1.3
|
05:22 | 05:34 | 05:42 | — |
|
C1.2
|
00:59 | 01:09 | 01:13 | — |