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Geomagnetic storm on 20 Jan 2026 (G4)

Max Kp8-G4

Ap144No. 1 in 2026

Consecutive G1+ days4

Ap rank56since 1932

Kp by 3-hour slot (UTC)

00–037-

03–066-

06–097+

09–128-

12–157+

15–187+

18–217+

21–248-

The days around it

Date	Max Kp	Ap	Level
17 Jan 2026	5o	24	G1
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	–

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.

← 19 Jan 2026 21 Jan 2026 →

About this page

Max Kp 8-, Ap 144: No. 56 of 34,615 days since 1932 by Ap.