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Geomagnetic storm on 21 Mar 2026 (G3)

Max Kp7oG3

Ap43No. 7 in 2026

Consecutive G1+ days4

Ap rank1,373since 1932

Kp by 3-hour slot (UTC)

00–037o

03–066-

06–095o

09–124o

12–153+

15–183o

18–214-

21–243-

The days around it

Date	Max Kp	Ap	Level
18 Mar 2026	2-	4	–
19 Mar 2026	1o	2	–
20 Mar 2026	6+	30	G2
21 Mar 2026	7o	43	G3
22 Mar 2026	7o	78	G3
23 Mar 2026	5o	31	G1
24 Mar 2026	4-	15	–

Highest-Ap days of 2026

20 Jan 2026144

22 Mar 202678

19 Jan 202673

4 Jul 202673

21 Jan 202672

3 Apr 202646

21 Mar 202643

2 Apr 202643

14 Mar 202642

4 Oct 202638

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.

← 21 Jan 2026 22 Mar 2026 →

About this page

Max Kp 7o, Ap 43: No. 1,373 of 34,615 days since 1932 by Ap.