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Geomagnetic storms in San Francisco — September 25, 2026

September 25, 2026
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Maximum Kp index on September 25, 2026

Kp = 4

Maximum Kp index on September 25, 2026

Geomagnetic disturbances were observed

Kp = 4

Geomagnetic storms in San Francisco on September 25, 2026

Changes in the geomagnetic index Kp from September 23 to 25, 2026 for mid latitudes

Time zone — UTC−07 — summer time (San Francisco | geographic coordinates — 37.73 N 123.03 W)

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Geomagnetic index Kp for 3 days
PNG API: JSON | TXT

Geomagnetic storms in San Francisco in September 2026

Changes in the maximum daily geomagnetic index Kp in September 2026 for mid latitudes

Time zone — UTC−07 — summer time (San Francisco | geographic coordinates — 37.73 N 123.03 W)

August 2026 October 2026
Daily Kp index in September 2026
PNG API: JSON | TXT

Geomagnetic activity indices on September 25, 2026

Geomagnetic index Ap 20
Solar radio flux F10.7 105