Solar flares — Sep 25, 2025
The strongest solar flare in the day
Flare of C4.6 level (normal) — in 00:22
Solar activity index
Value for Sep 25, 2025 24:00 (end on the day). The maximum value is 10.0
Solar flares in 2 days
Chart of solar activity from Sep 24, 2025 to Sep 25, 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 Sep 25, 2025
Total number of flares of class C and higher — 10 flares
C type — 10 | M type — 0 | X type — 0
| start | maximum | end | region | |
|---|---|---|---|---|
|
C2.4
|
20:11 | 20:21 | 20:28 | 4226 |
|
C2.2
|
19:15 | 19:22 | 19:30 | 4217 |
|
C3.4
|
14:54 | 15:01 | 15:05 | 4217 |
|
C1.9
|
13:42 | 13:51 | 13:57 | — |
|
C2.1
|
13:26 | 13:33 | 13:42 | — |
|
C2.3
|
11:29 | 11:37 | 11:54 | 4217 |
|
C3.3
|
07:10 | 07:23 | 07:41 | 4224 |
|
C3.6
|
05:00 | 05:09 | 05:16 | 4224 |
|
C3.2
|
03:14 | 03:23 | 03:30 | 4224 |
|
C4.6
|
00:14 | 00:22 | 00:29 | 4226 |