Geomagnetic storms in San Francisco on August 11, 2026

August 11, 2026

San Francisco change region

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Maximum Kp index on August 11, 2026

Kp = 3+

The Earth's magnetosphere was quiet

Kp = 3+

Changes in the geomagnetic index Kp from August 9 to 11, 2026 for mid latitudes

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

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PNG API: JSON | TXT

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

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

July 2026 September 2026

PNG API: JSON | TXT

Geomagnetic index A_p	7
Solar radio flux F10.7	96