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Solar flares in August 2026
C-class142
M-class13
X-class0
LargestM8.12026-08-20
Sunspot number81.3NOAA SWPC
Flares per day (C and above)
M/X flares per day
Same month a year earlier
| Month | C | M | X | Largest |
|---|---|---|---|---|
| August 2025 | 239 | 41 | 0 | M4.5 |
| August 2026 | 142 | 13 | 0 | M8.1 |
Top 15 flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 2026-08-20 | 11:32 | 11:42 | 22 | M8.1 | – | – |
| 2026-08-25 | 09:32 | 10:02 | 41 | M6.9 | – | – |
| 2026-08-20 | 15:51 | 16:11 | 30 | M2.9 | – | – |
| 2026-08-26 | 06:29 | 06:34 | 9 | M2.2 | – | – |
| 2026-08-25 | 01:04 | 01:26 | 36 | M1.9 | – | – |
| 2026-08-20 | 07:30 | 08:05 | 47 | M1.8 | – | – |
| 2026-08-25 | 06:30 | 06:40 | 16 | M1.8 | – | – |
| 2026-08-24 | 18:51 | 19:36 | 63 | M1.7 | – | – |
| 2026-08-21 | 09:09 | 09:57 | – | M1.6 | – | – |
| 2026-08-21 | 10:09 | 10:18 | 12 | M1.6 | – | – |
| 2026-08-19 | 18:24 | 18:51 | 46 | M1.0 | – | – |
| 2026-08-25 | 03:55 | 04:02 | 12 | M1.0 | – | – |
| 2026-08-26 | 12:06 | 12:14 | 16 | M1.0 | – | – |
| 2026-08-16 | 19:02 | 19:28 | 43 | C8.2 | – | – |
| 2026-08-20 | 11:19 | 11:29 | – | C8.0 | – | – |
All times UTC. Until June 2017 classes are NOAA's reports of the time (GOES-15 and earlier included a 0.7 scaling factor); later classes come from calibrated GOES-16/18 data, so the same flare reads about 1.4× larger. Do not compare the two periods directly.
About this page
155 flares of class C or larger in August 2026; by M/X count it ranks 212 of 565 months.