Top 25 sunspot regions
On this page you will find an overview of the largest sunspot regions since June 1996. This page is updated daily. Sunspot information comes from the NOAA SWPC.
| Region | Size | Number of sunspots | Class Magn. | Class Spot | ||
|---|---|---|---|---|---|---|
| 1 | 2014/10/27 | 2192 | 2750 | 60 | FKC | |
| 2 | 2003/10/30 | 0486 | 2610 | 108 | FKC | |
| 3 | 2001/03/30 | 9393 | 2440 | 51 | FKI | |
| 4 | 2024/05/10 | 3664 | 2400 | 58 | FKC | |
| 5 | 2000/09/20 | 9169 | 2140 | 28 | FKC | |
| 6 | 2004/07/22 | 0652 | 2010 | 67 | FKC | |
| 7 | 2002/08/20 | 0069 | 1990 | 60 | EKC | |
| 8 | 2003/10/23 | 0484 | 1750 | 56 | EKC | |
| 9 | 2003/10/31 | 0488 | 1750 | 34 | FKC | |
| 10 | 2005/01/17 | 0720 | 1630 | 37 | EKC | |
| 11 | 2014/02/05 | 1967 | 1580 | 73 | FKC | |
| 12 | 2014/01/09 | 1944 | 1560 | 118 | FKC | |
| 13 | 2011/11/05 | 1339 | 1540 | 33 | FKC | |
| 14 | 2002/09/11 | 0105 | 1520 | 40 | FKI | |
| 15 | 2012/07/13 | 1520 | 1460 | 53 | FKC | |
| 16 | 1998/09/04 | 8323 | 1460 | 33 | FKC | |
| 17 | 2024/02/25 | 3590 | 1450 | 29 | FKC | |
| 18 | 2025/12/02 | 4294 | 1445 | 41 | FKC | |
| 19 | 2005/09/10 | 0808 | 1430 | 38 | FKC | |
| 20 | 2001/11/11 | 9690 | 1420 | 74 | FKC | |
| 21 | 1999/08/03 | 8651 | 1370 | 43 | FKI | |
| 22 | 2004/08/14 | 0656 | 1360 | 99 | FKC | |
| 23 | 2002/07/17 | 0030 | 1350 | 71 | FKC | |
| 24 | 2011/09/25 | 1302 | 1300 | 12 | FKC | |
| 25 | 2024/08/09 | 3780 | 1280 | 128 | FKC |
Latest news
Tuesday, 17 March 2026
M2.7 solar flare, CME arrival possible
Sunday, 1 February 2026
Complex sunspot region 4366
Monday, 19 January 2026
CME impact! S4 solar radiation storm
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Space weather facts
| Last X-flare | 2026/02/04 | X4.21 |
| Last M-flare | 2026/03/28 | M1.3 |
| Last geomagnetic storm | 2026/03/25 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (3%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| February 2026 | 78.2 -34.3 |
| March 2026 | 84 +5.8 |
| Last 30 days | 84 +7.5 |
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