Solar flares — Sep 30, 2025
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The strongest solar flare in the day
Flare of M2.7 level (strong) — in 10:40
Solar activity index
Value for Sep 30, 2025 24:00 (end on the day). The maximum value is 10.0
Solar flares in 2 days
Chart of solar activity from Sep 29, 2025 to Sep 30, 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 30, 2025
Total number of flares of class C and higher — 8 flares
C type — 5 | M type — 3 | X type — 0
| start | maximum | end | region | |
|---|---|---|---|---|
|
M1.8
|
13:02 | 13:27 | 13:48 | 4238 |
|
M2.7
|
10:29 | 10:40 | 10:45 | 4226 |
|
C2.8
|
10:15 | 10:21 | 10:24 | 4236 |
|
C3.6
|
05:43 | 05:46 | 05:48 | 4236 |
|
C3.8
|
05:29 | 05:37 | 05:43 | 4236 |
|
C5.8
|
03:00 | 03:14 | 03:27 | — |
|
M1.2
|
01:51 | 01:56 | 01:58 | 4232 |
|
C3.0
|
01:19 | 01:23 | 01:34 | 4230 |