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Geomagnetic activity in April 2023
Mean Ap13.4No. 470 of 1138
G1+ days3
G3+ days2
Max Ap7224 Apr 2023
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 18 Apr 2023 | 5- | 13 | G1 |
| 23 Apr 2023 | 8+ | 65 | G4 |
| 24 Apr 2023 | 8o | 72 | G4 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| April 2022 | 11.8 | 5 | 1 |
| April 2023 | 13.4 | 3 | 2 |
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 13.4 in April 2023, No. 470 of 1138 months since 1932; 3 days reached G1 or higher.