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Monthly overview (Apr 2025)

The monthly mean values of the geomagnetic field components at Kakioka are D: -7°-57.9′°, H: 30114nT, Z: 35989nT and F: 46926nT for April 2025.

Monthly average of the K-index daily sum is 19.7. indicates an extremely high level of geomagnetic activity during the month.

Notable geomagnetic events include 1 magnetic storms, 3 si, 8 bay, 1 sfe, 7 pi and 1 pc.

The international 5 quietest days are the 1,25,26,28,29^th.

The international 5 most disturbed days are the 4,5,15,16,21^th.

Date	K-index daily sum	Geomagnetic activity	International 5 quietest days	International 5 quietest days	geomagnetic 1-minute value plot
1	9	calm	○		plot
2	28	disturbed			plot
3	28	disturbed			plot
4	27	disturbed		○	plot
5	31	disturbed		○	plot
6	24	disturbed			plot
7	16	moderately calm			plot
8	23	disturbed			plot
9	25	disturbed			plot
10	20	moderately disturbed			plot
11	18	moderately disturbed			plot
12	21	moderately disturbed			plot
13	17	moderately disturbed			plot
14	20	moderately disturbed			plot
15	23	disturbed		○	plot
16	36	disturbed		○	plot
17	21	moderately disturbed			plot
18	18	moderately disturbed			plot
19	22	moderately disturbed			plot
20	13	moderately calm			plot
21	30	disturbed		○	plot
22	15	moderately calm			plot
23	13	moderately calm			plot
24	15	moderately calm			plot
25	10	calm	○		plot
26	13	moderately calm	○		plot
27	13	moderately calm			plot
28	9	calm	○		plot
29	14	moderately calm	○		plot
30	19	moderately disturbed			plot

*) Plot diagram opens in a separate window.