Solar flares — Sep 27, 2025
Yesterday
Tomorrow
The strongest solar flare in the day
Flare of M1.1 level (strong) — in 08:14
Solar activity index
Value for Sep 27, 2025 24:00 (end on the day). The maximum value is 10.0
Solar flares in 2 days
Chart of solar activity from Sep 26, 2025 to Sep 27, 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 27, 2025
Total number of flares of class C and higher — 11 flares
C type — 8 | M type — 3 | X type — 0
| start | maximum | end | region | |
|---|---|---|---|---|
|
C3.0
|
12:33 | 12:38 | 12:41 | — |
|
C3.2
|
12:12 | 12:22 | 12:33 | — |
|
C2.8
|
10:28 | 10:38 | 10:51 | — |
|
M1.1
|
08:03 | 08:14 | 08:18 | 4232 |
|
C3.9
|
07:22 | 07:30 | 07:35 | 4226 |
|
C4.9
|
06:30 | 06:34 | 06:37 | — |
|
M1.1
|
05:18 | 05:23 | 05:27 | 4227 |
|
M1.0
|
04:29 | 04:59 | 05:18 | 4227 |
|
C3.6
|
03:32 | 03:40 | 03:44 | 4232 |
|
C8.0
|
01:28 | 01:42 | 02:00 | 4227 |
|
C2.8
|
00:11 | 00:15 | 00:21 | 4217 |