International Association of Geomagnetism and Aeronomy

(International Service of Geomagnetic Indices)

Nowcast data for October 2025

(Last update: 13:21:42 UTC, October 15, 2025)

Geomagnetic Planetary Indices

Kp three-hourly daily

1 2 3 4 5 6 7 8 Sum Ap Cp

1 5+⁽¹¹⁾ 5o⁽¹¹⁾ 5-⁽¹¹⁾ 4o⁽¹¹⁾ 5+⁽¹¹⁾ 5o⁽¹¹⁾ 6o⁽¹¹⁾ 4+⁽¹¹⁾ 40- 48 1.6

2 6-⁽¹¹⁾ 7-⁽¹¹⁾ 4+⁽¹²⁾ 5-⁽¹²⁾ 4o⁽¹²⁾ 3-⁽¹¹⁾ 5o⁽¹²⁾ 4+⁽¹²⁾ 37+ 46 1.5

3 4+⁽¹²⁾ 5o⁽¹²⁾ 5o⁽¹²⁾ 4o⁽¹²⁾ 3o⁽¹²⁾ 3+⁽¹²⁾ 4-⁽¹²⁾ 3-⁽¹²⁾ 31o 28 1.2

4 3+⁽¹²⁾ 4-⁽¹²⁾ 4-⁽¹²⁾ 4-⁽¹²⁾ 4o⁽¹²⁾ 4-⁽¹²⁾ 3o⁽¹²⁾ 2+⁽¹²⁾ 27+ 20 1.0

5 3-⁽¹²⁾ 3+⁽¹²⁾ 3-⁽¹²⁾ 2-⁽¹²⁾ 2o⁽¹²⁾ 1o⁽¹²⁾ 0+⁽¹²⁾ 1+⁽¹²⁾ 15o 8 0.4

6 1-⁽¹²⁾ 0o⁽¹²⁾ 1-⁽¹²⁾ 1- 1o 2- 2- 2+ 9- 4 0.1

7 2+ 2+ 3-⁽¹²⁾ 3o 4o 4- 3- 2o 23- 14 0.8

8 3o⁽¹²⁾ 4o 2+ 2- 2+ 2o 1+ 0+ 17o 10 0.6

9 1- 0+ 2o 1- 1o 0+ 1o 2o 8o 4 0.1

10 3+ 2+ 2+ 2o 1+ 1- 1o 2o 15o 8 0.4

11 2o 4o 4+ 3- 2o 2+ 3- 4- 24- 16 0.9

12 4o 4o 4- 4o⁽¹²⁾ 4o 4+ 5- 4+ 33o 29 1.3

13 5o 4+ 3+ 4- 3- 2o 3+ 3- 27o 21 1.1

14 2+ 2o 2o 1+ 2- 2- 1- 3- 14+ 7 0.3

15 4- 3+ 3o 2o 2-⁽¹⁰⁾


Kp three-hourly	daily
	1	2	3	4	5	6	7	8	Sum	Ap	Cp

1	5+⁽¹¹⁾	5o⁽¹¹⁾	5-⁽¹¹⁾	4o⁽¹¹⁾	5+⁽¹¹⁾	5o⁽¹¹⁾	6o⁽¹¹⁾	4+⁽¹¹⁾	40-	48	1.6
2	6-⁽¹¹⁾	7-⁽¹¹⁾	4+⁽¹²⁾	5-⁽¹²⁾	4o⁽¹²⁾	3-⁽¹¹⁾	5o⁽¹²⁾	4+⁽¹²⁾	37+	46	1.5
3	4+⁽¹²⁾	5o⁽¹²⁾	5o⁽¹²⁾	4o⁽¹²⁾	3o⁽¹²⁾	3+⁽¹²⁾	4-⁽¹²⁾	3-⁽¹²⁾	31o	28	1.2
4	3+⁽¹²⁾	4-⁽¹²⁾	4-⁽¹²⁾	4-⁽¹²⁾	4o⁽¹²⁾	4-⁽¹²⁾	3o⁽¹²⁾	2+⁽¹²⁾	27+	20	1.0
5	3-⁽¹²⁾	3+⁽¹²⁾	3-⁽¹²⁾	2-⁽¹²⁾	2o⁽¹²⁾	1o⁽¹²⁾	0+⁽¹²⁾	1+⁽¹²⁾	15o	8	0.4
6	1-⁽¹²⁾	0o⁽¹²⁾	1-⁽¹²⁾	1-	1o	2-	2-	2+	9-	4	0.1
7	2+	2+	3-⁽¹²⁾	3o	4o	4-	3-	2o	23-	14	0.8
8	3o⁽¹²⁾	4o	2+	2-	2+	2o	1+	0+	17o	10	0.6
9	1-	0+	2o	1-	1o	0+	1o	2o	8o	4	0.1
10	3+	2+	2+	2o	1+	1-	1o	2o	15o	8	0.4
11	2o	4o	4+	3-	2o	2+	3-	4-	24-	16	0.9
12	4o	4o	4-	4o⁽¹²⁾	4o	4+	5-	4+	33o	29	1.3
13	5o	4+	3+	4-	3-	2o	3+	3-	27o	21	1.1
14	2+	2o	2o	1+	2-	2-	1-	3-	14+	7	0.3
15	4-	3+	3o	2o	2-⁽¹⁰⁾

Note: If not the complete data from all 13 observatories could be used in the calculation, the number of already included observatories is given in parentheses.

Editor:

GFZ Helmholtz Centre for Geosciences

Adolf Schmidt Observatory for Geomagnetism

https://kp.gfz.de/en/