Geomagnetic storms in San Diego on September 23, 2026

September 23, 2026

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Maximum Kp index on September 23, 2026

Kp = 3

The Earth's magnetosphere was quiet

Kp = 3

Changes in the geomagnetic index Kp from September 21 to 23, 2026 for mid latitudes

Time zone — UTC−07 — summer time (San Diego | geographic coordinates — 32.81 N 117.14 W)

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PNG API: JSON | TXT

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

Time zone — UTC−07 — summer time (San Diego | geographic coordinates — 32.81 N 117.14 W)

August 2026 October 2026

PNG API: JSON | TXT

Geomagnetic index A_p	4
Solar radio flux F10.7	121