| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2025/08/24 | 2 | 60 | DAO | S17E66 | |
| 2025/08/25 | 13 | 180 | EAI | S19E57 | |
| 2025/08/26 | 15 | 600 | EKI | S17E41 | |
| 2025/08/27 | 29 | 720 | EKI | S17E31 | |
| 2025/08/28 | 43 | 720 | EKI | S17E16 | |
| 2025/08/29 | 50 | 740 | EKC | S18E01 | |
| 2025/08/30 | 50 | 700 | EKC | S18W11 | |
| 2025/08/31 | 50 | 680 | EKC | S18W24 | |
| 2025/09/01 | 33 | 550 | EHI | S18W38 | |
| 2025/09/02 | 11 | 400 | EHO | S18W52 | |
| 2025/09/03 | 14 | 480 | FHI | S20W63 | |
| 2025/09/04 | 14 | 480 | FHI | S20W75 | |
| 2025/09/05 | 4 | 280 | EHO | S20W84 | |
| 2025/09/06 | 4 | 280 | EHO | S18W0* |
| C | M |
|---|---|
| 33 | 6 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | M4.5 | 2025/08/26 | 05:09 | 05:25 | 05:40 | |
| 2 | M1.3 | 2025/08/30 | 14:00 | 14:09 | 14:23 | |
| 3 | M1.2 | 2025/08/30 | 15:51 | 15:59 | 16:12 | |
| 4 | M1.1 | 2025/08/28 | 14:11 | 14:16 | 14:22 | |
| 5 | M1.04 | 2025/08/25 | 09:04 | 09:07 | 09:09 | |
| 6 | M1.0 | 2025/08/28 | 18:48 | 19:03 | 19:09 | |
| 7 | C8.5 | 2025/08/28 | 14:00 | 14:07 | 14:11 | |
| 8 | C8.0 | 2025/08/26 | 23:46 | 00:10 | 00:22 | |
| 9 | C7.4 | 2025/08/26 | 01:28 | 01:34 | 01:39 | |
| 10 | C7.2 | 2025/08/30 | 22:16 | 22:23 | 22:35 |
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| Last X-flare | 2025/12/01 | X1.9 |
| Last M-flare | 2025/12/04 | M6.0 |
| Last geomagnetic storm | 2025/12/04 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2025 | 91.8 -22.8 |
| December 2025 | 186 +94.2 |
| Last 30 days | 106.3 +12.6 |