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Geomagnetic activity in January 2026
Mean Ap22.5No. 100 of 1138
G1+ days10
G3+ days3
Max Ap14420 Jan 2026
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 2 Jan 2026 | 5o | 23 | G1 |
| 10 Jan 2026 | 6- | 31 | G2 |
| 11 Jan 2026 | 5+ | 28 | G1 |
| 16 Jan 2026 | 5o | 25 | G1 |
| 17 Jan 2026 | 5o | 24 | G1 |
| 19 Jan 2026 | 9- | 73 | G5 |
| 20 Jan 2026 | 8- | 144 | G4 |
| 21 Jan 2026 | 7+ | 72 | G3 |
| 22 Jan 2026 | 5+ | 17 | G1 |
| 28 Jan 2026 | 5o | 23 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| January 2025 | 13.2 | 3 | 1 |
| January 2026 | 22.5 | 10 | 3 |
Dates and time slots are UTC. Kp is the 3-hourly planetary geomagnetic index (0–9); Ap is the daily average disturbance. G1–G5 follow the NOAA storm scale (Kp 5- and above counted as G1). Aurora visibility also depends on weather and location. The latest values are preliminary.
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About this page
Mean Ap 22.5 in January 2026, No. 100 of 1138 months since 1932; 10 days reached G1 or higher.