Aurora & Space WeatherGeomagnetic activity in 2023
Mean Ap10.8
G1+51days
G3+7days
G50days
G1+ days by month
- January 2023
- February 2023
- March 2023
- April 2023
- May 2023
- June 2023
- July 2023
- August 2023
- September 2023
- October 2023
- November 2023
- December 2023
Nearby years (G1+ days)
20
18
9
27
55
51
46
97
50
Top 10 days by Ap
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 27 Feb 2023 | 7- | 91 | G3 |
| 24 Mar 2023 | 8o | 73 | G4 |
| 24 Apr 2023 | 8o | 72 | G4 |
| 23 Apr 2023 | 8+ | 65 | G4 |
| 5 Nov 2023 | 7+ | 61 | G3 |
| 23 Mar 2023 | 7o | 55 | G3 |
| 1 Dec 2023 | 7- | 52 | G3 |
| 19 Sep 2023 | 6+ | 47 | G2 |
| 2 Sep 2023 | 5+ | 37 | G1 |
| 25 Nov 2023 | 6+ | 37 | G2 |
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
2023 had 51 G1+ storm days (No. 75 of 95 years) and 7 G3+ days.