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Solar flares in June 2026
C-class208
M-class13
X-class2
LargestX1.12026-06-30
Sunspot number104.5NOAA SWPC
Flares per day (C and above)
M/X flares per day
Same month a year earlier
| Month | C | M | X | Largest |
|---|---|---|---|---|
| June 2025 | 205 | 17 | 2 | X1.8 |
| June 2026 | 208 | 13 | 2 | X1.1 |
Top 15 flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 2026-06-30 | 20:34 | 20:50 | 26 | X1.1 | – | – |
| 2026-06-03 | 11:19 | 11:28 | 16 | X1.0 | – | – |
| 2026-06-03 | 01:22 | 01:36 | 21 | M9.3 | – | – |
| 2026-06-03 | 06:49 | 07:00 | 18 | M7.7 | – | – |
| 2026-06-21 | 19:17 | 19:29 | 18 | M6.8 | – | – |
| 2026-06-30 | 12:37 | 12:57 | 46 | M5.8 | – | – |
| 2026-06-02 | 16:31 | 16:50 | 25 | M3.3 | – | – |
| 2026-06-21 | 02:25 | 02:46 | 33 | M2.6 | – | – |
| 2026-06-06 | 13:40 | 14:01 | 48 | M1.8 | – | – |
| 2026-06-29 | 21:13 | 21:40 | 39 | M1.4 | – | – |
| 2026-06-20 | 01:26 | 01:51 | 38 | M1.3 | – | – |
| 2026-06-30 | 00:39 | 01:16 | 57 | M1.3 | – | – |
| 2026-06-02 | 04:42 | 04:45 | 5 | M1.2 | – | – |
| 2026-06-02 | 09:51 | 10:05 | 28 | M1.2 | – | – |
| 2026-06-20 | 14:50 | 15:00 | 15 | M1.0 | – | – |
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
223 flares of class C or larger in June 2026; by M/X count it ranks 192 of 565 months.