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Geomagnetic storm on 21 Jan 2026 (G3)

Max Kp7+G3

Ap72No. 5 in 2026

Consecutive G1+ days4

Ap rank398since 1932

Kp by 3-hour slot (UTC)

00–037+

03–067-

06–097o

09–126+

12–154+

15–184o

18–213+

21–243-

The days around it

Date	Max Kp	Ap	Level
18 Jan 2026	4-	14	–
19 Jan 2026	9-	73	G5
20 Jan 2026	8-	144	G4
21 Jan 2026	7+	72	G3
22 Jan 2026	5+	17	G1
23 Jan 2026	4+	27	–
24 Jan 2026	4+	16	–

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.

← 20 Jan 2026 21 Mar 2026 →

About this page

Max Kp 7+, Ap 72: No. 398 of 34,615 days since 1932 by Ap.