List of magnetic storms in September 2021
Location — Station Mirny (geographic coordinates — 66.55 S 93 E | time zone UTC+03)
Days with magnetic storms — 11
01 September 2021 — Magnetic storm of level G1
03 September 2021 — Magnetic storm of level G2
05 September 2021 — Magnetic storm of level G1
08 September 2021 — Magnetic storm of level G2
12 September 2021 — Magnetic storm of level G1
13 September 2021 — Magnetic storm of level G1
17 September 2021 — Magnetic storm of level G2
18 September 2021 — Magnetic storm of level G1
22 September 2021 — Magnetic storm of level G2
23 September 2021 — Magnetic storm of level G1
28 September 2021 — Magnetic storm of level G1
Days with geomagnetic disturbances — 6
04 September 2021 — geomagnetic disturbances
07 September 2021 — geomagnetic disturbances
14 September 2021 — geomagnetic disturbances
15 September 2021 — geomagnetic disturbances
25 September 2021 — geomagnetic disturbances
29 September 2021 — geomagnetic disturbances
Maximum of solar activity in September 2021
Solar radio flux (10.7 cm) = 102
Mean planetary A index = 33
Mean planetary Kp index = 6