| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2025/06/18 | 9 | 70 | DAI | S16E63 | |
| 2025/06/19 | 9 | 210 | DAI | S15E48 | |
| 2025/06/20 | 6 | 80 | DAI | S14E38 | |
| 2025/06/21 | 7 | 200 | DAI | S15E23 | |
| 2025/06/22 | 11 | 190 | DSI | S15E11 | |
| 2025/06/23 | 13 | 200 | DSI | S14W03 | |
| 2025/06/24 | 6 | 150 | DSO | S13W16 | |
| 2025/06/25 | 5 | 160 | DSO | S14W29 | |
| 2025/06/26 | 6 | 130 | CSO | S14W46 | |
| 2025/06/27 | 4 | 100 | DSO | S14W60 | |
| 2025/06/28 | 2 | 90 | CSO | N14W75 | |
| 2025/06/29 | 1 | 60 | HSX | S14W86 | |
| 2025/06/30 | 1 | 60 | HSX | S14W0* |
| B | C | M |
|---|---|---|
| 3 | 16 | 2 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | M1.5 | 2025/06/18 | 23:44 | 00:00 | 00:15 | |
| 2 | M1.0 | 2025/06/20 | 17:21 | 17:40 | 17:59 | |
| 3 | C6.9 | 2025/06/18 | 09:14 | 09:30 | 09:55 | |
| 4 | C5.9 | 2025/06/19 | 06:39 | 06:51 | 06:54 | |
| 5 | C5.2 | 2025/06/18 | 12:28 | 12:34 | 12:37 | |
| 6 | C4.7 | 2025/06/18 | 05:22 | 05:33 | 05:38 | |
| 7 | C4.4 | 2025/06/19 | 04:05 | 04:12 | 04:15 | |
| 8 | C4.1 | 2025/06/18 | 05:04 | 05:12 | 05:23 | |
| 9 | C3.9 | 2025/06/18 | 08:30 | 08:36 | 08:46 | |
| 10 | C3.7 | 2025/06/18 | 01:58 | 02:05 | 02:12 |
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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 |