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Geomagnetic activity in August 2021
Mean Ap6.2No. 1050 of 1138
G1+ days2
G3+ days0
Max Ap2127 Aug 2021
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 2 Aug 2021 | 5- | 15 | G1 |
| 28 Aug 2021 | 5o | 14 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| August 2020 | 5.6 | 2 | 0 |
| August 2021 | 6.2 | 2 | 0 |
Dates and time slots are UTC. Kp is the 3-hourly planetary geomagnetic index (0–9); Ap is the daily average disturbance. G1–G5 follow the NOAA storm scale (Kp 5- and above counted as G1). Aurora visibility also depends on weather and location. The latest values are preliminary.
About this page
Mean Ap 6.2 in August 2021, No. 1050 of 1138 months since 1932; 2 days reached G1 or higher.