IUGG: Association of Geomagnetism and Aeronomy

(International Service of Geomagnetic Indices)

August 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	0+	0+	1-	1-	1-	1-	0+	1-	4+	3	0.0
2	0+	0+	1o	1o	4-	6-	4o	2o	18o	17	0.9
3	4+	4+	2+	3o	3o	2o	3o	4-	26-	18	1.0
4	4+	3-	2+	2-	1o	1-	1-	1-	14o	9	0.5
5	0+	0+	1-	0o	0o	0+	0+	1+	3+	2	0.0
6	1o	1-	0o	0o	0o	0+	0+	0o	2+	1	0.0
7	0o	0+	1o	1-	1+	0+	0+	0o	4o	2	0.0
8	0+	1+	2o	4o	6o	4o	6-	4-	27o	30	1.3
9	3-	2o	2-	1+	1o	1o	2-	2o	13+	6	0.3
10	2-	1-	1o	1+	0+	0+	0+	1o	7-	4	0.1
11	0+	0+	0o	2-	3-	3o	2-	1-	10+	6	0.3
12	1+	3-	2o	2o	2+	1+	2+	1o	15o	7	0.4
13	2o	2+	1+	1o	1o	0+	2-	3o	13-	6	0.3
14	3-	2+	3-	2+	2o	2-	2o	1o	17-	8	0.4
15	1-	1o	0+	1o	1+	2-	2+	1o	9+	5	0.2
16	1o	2-	2-	1-	0+	0o	0+	0+	6o	3	0.1
17	1-	2-	2+	1o	2+	3o	3+	4-	18o	11	0.6
18	4-	5-	4-	2-	2+	2-	5+	4+	27+	24	1.2
19	2+	5-	4o	4o	2o	2-	2+	3o	24o	17	0.9
20	3-	2-	2-	2-	3o	2o	3+	3-	19-	10	0.6
21	3o	2+	1+	1o	2-	1o	1o	2-	13o	7	0.3
22	1-	0+	0o	1+	1o	1o	1-	0+	5+	3	0.1
23	1-	1+	1+	1+	2-	1o	1+	1+	10o	5	0.2
24	2o	1o	0+	1-	0+	0+	1o	3o	9-	5	0.2
25	1o	0+	1-	1-	1-	1-	0+	0o	4+	2	0.0
26	0o	0+	0+	0+	1-	0+	0o	0+	2+	2	0.0
27	1-	0o	0+	0+	0+	0+	0+	1o	3+	2	0.0
28	1o	0o	1-	1+	3+	3o	4-	4o	17o	12	0.7
29	4+	3+	4o	3-	2+	2o	4-	2o	24+	17	0.9
30	3+	4-	3+	3+	2o	3-	2+	2+	23o	14	0.8
31	3o	3+	3+	3o	2-	2-	1+	1-	18o	11	0.6
									Mean	9	0.42

Preliminary sudden commencements: none