Solar flares — Sep 07, 2025
The strongest solar flare in the day
Flare of C9.5 level (normal) — in 01:47
Solar activity index
Value for Sep 07, 2025 24:00 (end on the day). The maximum value is 10.0

Solar flares in 2 days
Chart of solar activity from Sep 06, 2025 to Sep 07, 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 07, 2025
Total number of flares of class C and higher — 12 flares
C type — 12 | M type — 0 | X type — 0
start | maximum | end | region | |
---|---|---|---|---|
C1.2
|
21:43 | 21:50 | 21:56 | — |
C4.0
|
18:56 | 19:13 | 19:45 | 4213 |
C3.6
|
13:33 | 13:44 | 13:51 | 4207 |
C3.4
|
11:39 | 11:50 | 12:15 | 4202 |
C3.6
|
11:07 | 11:12 | 11:17 | 4207 |
C2.7
|
10:25 | 10:40 | 11:04 | 4202 |
C3.3
|
08:49 | 08:57 | 09:05 | 4207 |
C3.6
|
07:43 | 07:55 | 08:20 | 4202 |
C6.3
|
06:10 | 06:20 | 06:33 | 4207 |
C3.0
|
05:45 | 06:00 | 06:13 | 4213 |
C3.3
|
04:54 | 05:12 | 05:45 | 4213 |
C9.5
|
01:38 | 01:47 | 01:50 | 4207 |