Solar flares — Dec 12, 2025
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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+00 (London)
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 — 6 flares
C type — 4 | M type — 2 | X type — 0
| start | maximum | end | region | |
|---|---|---|---|---|
|
C3.60
|
15:48 | 15:58 | 16:08 | — |
|
C2.8
|
14:37 | 14:47 | 14:51 | — |
|
C2.2
|
13:43 | 13:48 | 13:52 | — |
|
C2.6
|
09:10 | 09:19 | 09:29 | — |
|
M1.1
|
05:27 | 05:44 | 05:53 | 4294 |
|
M2.0
|
04:50 | 05:05 | 05:14 | 4296 |