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Solar flares in April 2025
C-class187
M-class34
X-class0
LargestM5.62025-04-01
Sunspot number124.1NOAA SWPC
Flares per day (C and above)
M/X flares per day
Same month a year earlier
| Month | C | M | X | Largest |
|---|---|---|---|---|
| April 2024 | 196 | 50 | 0 | M9.5 |
| April 2025 | 187 | 34 | 0 | M5.6 |
Top 15 flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 2025-04-01 | 06:37 | 06:46 | 15 | M5.6 | – | – |
| 2025-04-18 | 23:09 | 23:50 | 67 | M4.3 | – | – |
| 2025-04-14 | 06:36 | 06:50 | 22 | M4.2 | – | – |
| 2025-04-13 | 18:38 | 18:51 | 22 | M3.1 | – | – |
| 2025-04-12 | 11:35 | 11:43 | 10 | M2.6 | – | – |
| 2025-04-01 | 22:18 | 22:31 | 23 | M2.5 | – | – |
| 2025-04-12 | 12:33 | 12:40 | 19 | M2.3 | – | – |
| 2025-04-13 | 04:48 | 04:52 | 6 | M2.2 | – | – |
| 2025-04-12 | 11:05 | 11:17 | 20 | M2.0 | – | – |
| 2025-04-21 | 18:25 | 18:37 | 16 | M1.9 | – | – |
| 2025-04-30 | 07:41 | 07:51 | 15 | M1.9 | – | – |
| 2025-04-29 | 05:10 | 05:13 | 7 | M1.7 | – | – |
| 2025-04-13 | 21:55 | 22:02 | 16 | M1.6 | – | – |
| 2025-04-29 | 10:49 | 10:57 | 20 | M1.6 | – | – |
| 2025-04-08 | 22:08 | 22:22 | 28 | M1.5 | – | – |
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
221 flares of class C or larger in April 2025; by M/X count it ranks 94 of 565 months.