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Geomagnetic activity in April 2026
Mean Ap12.1No. 576 of 1138
G1+ days7
G3+ days0
Max Ap463 Apr 2026
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 2 Apr 2026 | 6o | 43 | G2 |
| 3 Apr 2026 | 6+ | 46 | G2 |
| 18 Apr 2026 | 5+ | 33 | G1 |
| 19 Apr 2026 | 5+ | 21 | G1 |
| 20 Apr 2026 | 5o | 23 | G1 |
| 21 Apr 2026 | 5- | 20 | G1 |
| 30 Apr 2026 | 5- | 14 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| April 2025 | 17.6 | 11 | 1 |
| April 2026 | 12.1 | 7 | 0 |
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.
About this page
Mean Ap 12.1 in April 2026, No. 576 of 1138 months since 1932; 7 days reached G1 or higher.