IUGG: Association of Geomagnetism and Aeronomy

(International Service of Geomagnetic Indices)

January 2026

International quiet and disturbed days

Geomagnetic Planetary Indices

Kp three-hourly									daily
	1	2	3	4	5	6	7	8	Sum	Ap	Cp
1	2o	3o	2+	3-	3o	2+	2+	3-	20+	11	0.6
2	3-	4o	3o	3-	4-	3+	5o	4+	29-	23	1.1
3	3o	3o	2o	2-	3o	2+	2+	1o	18+	10	0.6
4	0o	0o	0o	1-	0+	1-	2o	3o	7-	4	0.1
5	3o	4o	4+	3-	3-	1-	0+	1+	19o	14	0.8
6	1-	1-	1o	2o	2+	1-	0+	0o	8-	4	0.1
7	0o	1-	0o	0+	1-	1o	2+	2o	7o	4	0.1
8	4o	3+	4-	2o	1o	1o	2o	3o	20o	13	0.7
9	3+	3o	2o	2o	2-	3-	3o	2-	19+	11	0.6
10	2o	3o	3+	3o	5-	3+	6-	6-	31-	31	1.3
11	4+	3-	3o	2+	4o	5o	5+	4o	31-	28	1.2
12	3o	4o	4-	3-	2-	2o	3o	4+	24+	17	0.9
13	3+	3-	2-	2o	0+	1o	2+	2o	15+	8	0.4
14	2-	2o	1-	1-	2o	1+	2-	3-	13-	6	0.3
15	3-	2o	3-	2+	1o	3o	3o	2+	19o	10	0.6
16	3+	4-	3+	3-	3+	5o	4o	5-	30o	25	1.2
17	5o	3+	4o	3o	3o	4-	4o	4-	30-	24	1.2
18	3-	4-	3-	2+	2+	3-	4-	3o	23o	14	0.8
19	3+	1-	0+	1o	1+	3o	8+	9-	27-	73	1.8
20	7-	6-	7+	8-	7+	7+	7+	8-	57o	144	2.0
21	7+	7-	7o	6+	4+	4o	3+	3-	42-	72	1.8
22	4o	3o	2+	2o	2+	2o	2-	5+	23-	17	0.9
23	4o	4o	4-	4+	3+	4+	4+	4o	32o	27	1.2
24	4+	2-	2+	2+	3o	3o	4o	3o	24-	16	0.9
25	3+	3o	3o	3o	3+	3+	2+	2-	23o	14	0.8
26	2o	1o	2o	2+	3-	2o	3o	3+	18+	10	0.6
27	2-	3o	1o	2-	1o	2o	3o	3o	16+	9	0.5
28	3+	3+	3-	4-	3+	4+	3+	5o	29o	23	1.1
29	4+	3+	2o	4-	4-	4o	4-	3+	28o	21	1.1
30	4-	3-	2o	2+	2-	1+	0o	2+	16o	9	0.5
31	2o	2o	1+	0+	1-	0+	1o	0+	8o	4	0.1
									Mean	22	0.84

Preliminary sudden commencements: none