Solar flares — Sep 29, 2025
The strongest solar flare in the day
Flare of M3.6 level (strong) — in 02:45
Solar activity index
Value for Sep 29, 2025 24:00 (end on the day). The maximum value is 10.0
Solar flares in 2 days
Chart of solar activity from Sep 28, 2025 to Sep 29, 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 29, 2025
Total number of flares of class C and higher — 22 flares
C type — 18 | M type — 4 | X type — 0
| start | maximum | end | region | |
|---|---|---|---|---|
|
C3.8
|
23:44 | 23:50 | 23:53 | 4232 |
|
C3.5
|
21:27 | 21:32 | 21:37 | 4232 |
|
C3.9
|
21:06 | 21:11 | 21:16 | 4236 |
|
C3.0
|
18:12 | 18:17 | 18:20 | 4233 |
|
C3.0
|
17:55 | 18:04 | 18:12 | 4236 |
|
C3.3
|
17:30 | 17:38 | 17:43 | 4236 |
|
C2.5
|
16:50 | 16:55 | 17:01 | 4227 |
|
C3.4
|
15:37 | 15:42 | 15:46 | 4236 |
|
C4.3
|
15:17 | 15:25 | 15:31 | 4236 |
|
C8.3
|
13:14 | 13:18 | 13:22 | 4230 |
|
M1.0
|
12:56 | 12:59 | 13:02 | 4233 |
|
M1.1
|
12:23 | 12:39 | 12:52 | 4232 |
|
M1.0
|
12:06 | 12:15 | 12:18 | 4236 |
|
C3.0
|
10:09 | 10:15 | 10:23 | — |
|
C3.6
|
08:54 | 09:02 | 09:09 | 4236 |
|
C3.9
|
08:12 | 08:22 | 08:33 | 4233 |
|
C6.5
|
05:11 | 05:14 | 05:17 | 4232 |
|
C4.4
|
04:49 | 04:58 | 05:11 | 4227 |
|
C2.9
|
04:14 | 04:21 | 04:24 | 4236 |
|
M3.6
|
02:37 | 02:45 | 02:47 | 4232 |
|
C5.8
|
00:41 | 00:46 | 00:48 | 4233 |
|
C6.3
|
00:24 | 00:35 | 00:41 | 4233 |