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Geomagnetic storm on 2 Oct 2025 (G3)
Max Kp7-G3
Ap45No. 13 in 2025
Consecutive G1+ days5
Ap rank1,231since 1932
Kp by 3-hour slot (UTC)
5+
7-
4+
5-
4o
3-
5o
4+
The days around it
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 29 Sep 2025 | 5+ | 28 | G1 |
| 30 Sep 2025 | 7o | 74 | G3 |
| 1 Oct 2025 | 6+ | 47 | G2 |
| 2 Oct 2025 | 7- | 45 | G3 |
| 3 Oct 2025 | 5o | 28 | G1 |
| 4 Oct 2025 | 4o | 19 | – |
| 5 Oct 2025 | 3+ | 8 | – |
Highest-Ap days of 2025
137
98
81
75
74
69
69
62
60
57
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
Max Kp 7-, Ap 45: No. 1,231 of 34,615 days since 1932 by Ap.