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Solar flares in June 2025
C-class205
M-class17
X-class2
LargestX1.82025-06-19
Sunspot number106.8NOAA SWPC
Flares per day (C and above)
M/X flares per day
Same month a year earlier
| Month | C | M | X | Largest |
|---|---|---|---|---|
| June 2024 | 275 | 50 | 3 | X1.5 |
| June 2025 | 205 | 17 | 2 | X1.8 |
Top 15 flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 2025-06-19 | 23:37 | 23:50 | 17 | X1.8 | – | – |
| 2025-06-17 | 21:38 | 21:49 | 16 | X1.2 | – | – |
| 2025-06-15 | 17:45 | 18:07 | 40 | M8.4 | – | – |
| 2025-06-14 | 22:51 | 23:01 | 18 | M6.8 | – | – |
| 2025-06-16 | 09:17 | 09:38 | 31 | M6.3 | – | – |
| 2025-06-02 | 10:59 | 11:18 | 40 | M3.3 | – | – |
| 2025-06-15 | 07:45 | 07:56 | 17 | M2.2 | – | – |
| 2025-06-15 | 10:32 | 10:47 | 21 | M1.9 | – | – |
| 2025-06-16 | 04:08 | 04:23 | 35 | M1.8 | – | – |
| 2025-06-17 | 23:45 | 00:00 | 30 | M1.5 | – | – |
| 2025-06-03 | 12:48 | 13:03 | 23 | M1.4 | – | – |
| 2025-06-16 | 11:27 | 11:39 | 16 | M1.4 | – | – |
| 2025-06-13 | 20:49 | 21:10 | 32 | M1.2 | – | – |
| 2025-06-15 | 23:43 | 23:57 | 22 | M1.2 | – | – |
| 2025-06-02 | 21:35 | 21:42 | 11 | M1.1 | – | – |
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
224 flares of class C or larger in June 2025; by M/X count it ranks 167 of 565 months.