Solar flares — Dec 12, 2025
The strongest solar flare in the day
Flare of M2.0 level (strong) — in 05:05
Solar activity index
Value for Dec 12, 2025 24:00 (end on the day). The maximum value is 10.0
Solar flares in 2 days
Chart of solar activity from Dec 11, 2025 to Dec 12, 2025
Time zone — UTC+01 (London) - summer time
This chart in PNG format — high resolution
API data: JSON or TXT
List of solar flares for Dec 12, 2025
Total number of flares of class C and higher — 9 flares
C type — 7 | M type — 2 | X type — 0
| start | maximum | end | region | |
|---|---|---|---|---|
|
C1.2
|
23:31 | 23:41 | 23:47 | 4307 |
|
C1.3
|
22:11 | 22:18 | 22:24 | 4307 |
|
C3.2
|
17:22 | 17:57 | 18:29 | 4294 |
|
C3.5
|
15:43 | 15:58 | 16:12 | 4294 |
|
C2.8
|
14:37 | 14:47 | 14:51 | 4296 |
|
C2.2
|
13:43 | 13:48 | 13:52 | 4294 |
|
C2.6
|
09:10 | 09:19 | 09:29 | 4294 |
|
M1.1
|
05:27 | 05:44 | 05:53 | 4294 |
|
M2.0
|
04:50 | 05:05 | 05:14 | 4296 |