Geomagnetic storms in Sarnia in September 2025

Sep 1, 2025 Sarnia

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

Location — Sarnia (geographic coordinates — 42.99 N -82.4 W | time zone UTC-04 - summer time)

This chart in PNG format — high resolution API data: JSON or TXT

List of magnetic storms in September 2025

Location — Sarnia (geographic coordinates — 42.99 N -82.4 W | time zone UTC-04 - summer time)

Solar radio flux (10.7 cm) = 206

Mean planetary A index = 34

Mean planetary Kp index = 6