Solar flares — Dec 20, 2025
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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 — 6 flares
C type — 5 | M type — 1 | X type — 0
| start | maximum | end | region | |
|---|---|---|---|---|
|
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 | — |