Geomagnetic storms in Brussels on December 18, 2025

December 18, 2025

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Maximum Kp index on December 18, 2025

Kp = 5-

Geomagnetic disturbances were observed

Kp = 5-

Changes in the geomagnetic index Kp from December 16 to 18, 2025 for mid latitudes

Time zone — UTC+01 (Brussels | geographic coordinates — 50.83 N 4.33 E)

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PNG API: JSON | TXT

Changes in the maximum daily geomagnetic index Kp in December 2025 for mid latitudes

Time zone — UTC+01 (Brussels | geographic coordinates — 50.83 N 4.33 E)

November 2025 January 2026

PNG API: JSON | TXT

Geomagnetic index A_p	17
Solar radio flux F10.7	116