Solar Flare WatchSolar flares in 2023
C2845
M351
X13
LargestX4.92023-12-31
M/X flares by month
- January 2023
- February 2023
- March 2023
- April 2023
- May 2023
- June 2023
- July 2023
- August 2023
- September 2023
- October 2023
- November 2023
- December 2023
Nearby years (M + X)
1
3
2
30
200
364
914
350
222
Top 20 flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 2023-12-31 | 21:36 | 21:55 | 31 | X4.9 | – | – |
| 2023-12-14 | 16:47 | 17:02 | 24 | X2.8 | – | – |
| 2023-02-17 | 19:38 | 20:16 | 71 | X2.2 | – | – |
| 2023-03-03 | 17:39 | 17:52 | 21 | X2.0 | – | – |
| 2023-01-09 | 18:37 | 18:50 | 19 | X1.9 | – | – |
| 2023-08-05 | 21:45 | 22:21 | 58 | X1.6 | – | – |
| 2023-08-07 | 20:30 | 20:46 | 47 | X1.4 | – | – |
| 2023-01-06 | 00:43 | 00:57 | 23 | X1.2 | – | – |
| 2023-03-29 | 02:18 | 02:33 | 21 | X1.2 | – | – |
| 2023-02-11 | 15:40 | 15:48 | 13 | X1.1 | – | – |
| 2023-01-10 | 22:39 | 22:47 | 12 | X1.0 | – | – |
| 2023-06-20 | 16:42 | 17:09 | 43 | X1.0 | – | – |
| 2023-07-02 | 22:54 | 23:14 | 64 | X1.0 | – | – |
| 2023-11-28 | 19:35 | 19:50 | 33 | M9.9 | – | – |
| 2023-05-16 | 16:31 | 16:43 | 19 | M9.6 | – | – |
| 2023-05-20 | 12:25 | 12:35 | 14 | M8.9 | – | – |
| 2023-09-21 | 12:42 | 12:54 | 19 | M8.7 | – | – |
| 2023-02-28 | 17:35 | 17:50 | 20 | M8.6 | – | – |
| 2023-09-20 | 14:11 | 14:19 | 13 | M8.2 | – | – |
| 2023-05-03 | 10:36 | 10:45 | 12 | M7.3 | – | – |
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
3,209 flares of class C+ in 2023: 351 M-class and 13 X-class.