Geomagnetic Storms in October, 2025
15 storms ↑ MAX: Kp 8 ↓ MIN: Kp 0.2
15 storms ↑ MAX: Kp 8 ↓ MIN: Kp 0.2
In October 2025, 15 geomagnetic storms were recorded; the strongest was Kp 8 on October 1, 2025. The longest run of consecutive active days was 4 (10 Oct–13 Oct).
Most powerful Geomagnetic Storms in October 2025
| Date | Class | Level | Duration |
|---|---|---|---|
| October 1, 2025 | Kp 8 | Severe (G4) | 57 h |
| October 12, 2025 | Kp 8 | Severe (G4) | 12 h |
| October 18, 2025 | Kp 7 | Strong (G3) | 12 h |
| October 3, 2025 | Kp 6 | Moderate (G2) | 14 h |
| October 4, 2025 | Kp 6 | Moderate (G2) | 9 h |
| October 7, 2025 | Kp 6 | Moderate (G2) | 9 h |
| October 13, 2025 | Kp 6 | Moderate (G2) | 3 h |
| October 28, 2025 | Kp 6 | Moderate (G2) | 9 h |
| October 29, 2025 | Kp 6 | Moderate (G2) | 36 h |
| October 31, 2025 | Kp 6 | Moderate (G2) | 3 h |
| October 6, 2025 | Kp 5 | Minor (G1) | 3 h |
| October 10, 2025 | Kp 5 | Minor (G1) | 3 h |
| October 11, 2025 | Kp 5 | Minor (G1) | 15 h |
| October 18, 2025 | Kp 5 | Minor (G1) | 3 h |
| October 27, 2025 | Kp 5 | Minor (G1) | 3 h |