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Geomagnetic activity in August 2026
Mean Ap8.7No. 874 of 1138
G1+ days4
G3+ days0
Max Ap308 Aug 2026
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 2 Aug 2026 | 6- | 17 | G2 |
| 8 Aug 2026 | 6o | 30 | G2 |
| 18 Aug 2026 | 5+ | 24 | G1 |
| 19 Aug 2026 | 5- | 17 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| August 2025 | 9.9 | 3 | 0 |
| August 2026 | 8.7 | 4 | 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 8.7 in August 2026, No. 874 of 1138 months since 1932; 4 days reached G1 or higher.