Solar flares — Aug 28, 2025
The strongest solar flare in the day
Flare of M1.5 level (strong) — in 21:40
Solar activity index
Value for Aug 28, 2025 24:00 (end on the day). The maximum value is 10.0

Solar flares in 2 days
Chart of solar activity from Aug 27, 2025 to Aug 28, 2025
Time zone — UTC+01 (London) - summer time

This chart in PNG format — high resolution
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List of solar flares for Aug 28, 2025
Total number of flares of class C and higher — 14 flares
C type — 10 | M type — 4 | X type — 0
start | maximum | end | region | |
---|---|---|---|---|
M1.5
|
21:30 | 21:40 | 21:46 | 4203 |
C6.0
|
21:13 | 21:27 | 21:30 | 4197 |
M1.0
|
19:48 | 20:03 | 20:09 | 4197 |
C3.6
|
19:10 | 19:17 | 19:23 | — |
M1.2
|
18:00 | 18:11 | 18:17 | 4203 |
C4.9
|
16:13 | 16:20 | 16:34 | 4203 |
M1.1
|
15:11 | 15:16 | 15:22 | 4197 |
C8.5
|
15:00 | 15:07 | 15:11 | 4197 |
C4.8
|
11:33 | 11:38 | 11:45 | — |
C4.8
|
11:23 | 11:28 | 11:33 | 4203 |
C4.5
|
04:30 | 04:39 | 04:56 | 4203 |
C3.6
|
03:07 | 03:15 | 03:22 | 4197 |
C5.4
|
01:26 | 01:33 | 01:35 | 4203 |
C6.6
|
01:06 | 01:17 | 01:26 | 4195 |