The monthly mean values of the geomagnetic field components at Kakioka are D: -7°-58.1′°, H: 30120nT, Z: 35993nT and F: 46933nT for May 2025.
Monthly average of the K-index daily sum is 20.1. indicates an extremely high level of geomagnetic activity during the month.
Notable geomagnetic events include 1 magnetic storms, 1 si, 3 bay, 2 sfe, 7 pi and 1 pc.
The international 5 quietest days are the 7,12,22,24,25th.
The international 5 most disturbed days are the 2,5,17,29,30th.
Plot of the geomagnetic hourly value for May 2025
Plot of the K-index daily total sum for 2025
Details of the geomagnetic storms in May 2025
| Date | K-index daily sum |
Geomagnetic activity |
Geomagnetic phenomena |
International 5 quietest days |
International 5 quietest days |
geomagnetic 1-minute value plot |
|---|---|---|---|---|---|---|
| 1 | 25 | disturbed | plot | |||
| 2 | 27 | disturbed | bay | ○ | plot | |
| 3 | 25 | disturbed | pi | plot | ||
| 4 | 26 | disturbed | plot | |||
| 5 | 30 | disturbed | ○ | plot | ||
| 6 | 20 | moderately disturbed | pi | plot | ||
| 7 | 14 | moderately calm | ○ | plot | ||
| 8 | 17 | moderately disturbed | plot | |||
| 9 | 20 | moderately disturbed | plot | |||
| 10 | 16 | moderately calm | plot | |||
| 11 | 19 | moderately disturbed | plot | |||
| 12 | 14 | moderately calm | ○ | plot | ||
| 13 | 15 | moderately calm | plot | |||
| 14 | 21 | moderately disturbed | sfe | plot | ||
| 15 | 17 | moderately disturbed | plot | |||
| 16 | 20 | moderately disturbed | plot | |||
| 17 | 30 | disturbed | pi pc | ○ | plot | |
| 18 | 26 | disturbed | pi | plot | ||
| 19 | 12 | moderately calm | pi | plot | ||
| 20 | 19 | moderately disturbed | plot | |||
| 21 | 19 | moderately disturbed | plot | |||
| 22 | 14 | moderately calm | ○ | plot | ||
| 23 | 12 | moderately calm | plot | |||
| 24 | 9 | calm | ○ | plot | ||
| 25 | 13 | moderately calm | sfe | ○ | plot | |
| 26 | 15 | moderately calm | si | plot | ||
| 27 | 23 | disturbed | storm pi | plot | ||
| 28 | 24 | disturbed | bay pi | plot | ||
| 29 | 33 | disturbed | ○ | plot | ||
| 30 | 29 | disturbed | ○ | plot | ||
| 31 | 19 | moderately disturbed | bay | plot |
*) Plot diagram opens in a separate window.
