Top 50 geomagnetic storms of 2021
On this page you will find an overview of the strongest geomagnetic storms of 2021 together with links to more information in our archive. The Kp-values on this page are the official, finalized Kp-values from the GFZ in Potsdam, Germany. The Ap-index provides a daily geomagnetic activity average. This page is updated daily. Times are in UTC.
| Ap | 00-03h | 03-06h | 06-09h | 09-12h | 12-15h | 15-18h | 18-21h | 21-00h | Kp max | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2021/11/04 | 72 | 6+ | 6- | 7 | 8- | 6- | 4- | 2- | 2 | 8- | View archive |
| 2 | 2021/05/12 | 42 | 1 | 1 | 4 | 4+ | 7 | 7- | 2 | 3 | 7 | View archive |
| 3 | 2021/10/12 | 46 | 5 | 6 | 5- | 6+ | 5- | 4+ | 3+ | 3+ | 6+ | View archive |
| 4 | 2021/11/03 | 19 | 3- | 1 | 1+ | 1- | 1 | 1- | 4 | 6+ | 6+ | View archive |
| 5 | 2021/03/20 | 27 | 2+ | 3 | 6- | 5- | 3+ | 4- | 4- | 4- | 6- | View archive |
| 6 | 2021/03/01 | 25 | 4- | 6- | 5 | 4 | 2 | 2 | 3+ | 1+ | 6- | View archive |
| 7 | 2021/05/20 | 24 | 3- | 2 | 2+ | 4+ | 5+ | 4 | 4 | 3+ | 5+ | View archive |
| 8 | 2021/09/17 | 23 | 2 | 3 | 1- | 3+ | 3 | 4- | 5 | 5+ | 5+ | View archive |
| 9 | 2021/11/30 | 10 | 0+ | 0 | 1- | 0+ | 0+ | 1 | 2 | 5+ | 5+ | View archive |
| 10 | 2021/03/14 | 23 | 4- | 5 | 4+ | 3 | 2 | 3+ | 3+ | 4 | 5 | View archive |
| 11 | 2021/03/02 | 20 | 2- | 2+ | 2+ | 2 | 3+ | 4 | 5 | 4+ | 5 | View archive |
| 12 | 2021/04/16 | 19 | 2 | 2+ | 3- | 2+ | 3+ | 3 | 5 | 4+ | 5 | View archive |
| 13 | 2021/04/25 | 18 | 5 | 4 | 3- | 3- | 3- | 2- | 3+ | 2 | 5 | View archive |
| 14 | 2021/06/15 | 17 | 2- | 1+ | 2- | 2- | 3+ | 4- | 5 | 4- | 5 | View archive |
| 15 | 2021/03/25 | 17 | 5 | 4 | 3+ | 2- | 3 | 1 | 1- | 3 | 5 | View archive |
| 16 | 2021/12/19 | 14 | 0+ | 0 | 0 | 1- | 2 | 4- | 4 | 5 | 5 | View archive |
| 17 | 2021/08/28 | 14 | 5 | 3 | 3+ | 2+ | 1+ | 3- | 1+ | 0+ | 5 | View archive |
| 18 | 2021/04/17 | 28 | 4+ | 5- | 5- | 4- | 4+ | 4- | 3 | 4- | 5- | View archive |
| 19 | 2021/03/21 | 22 | 4 | 3+ | 2- | 1+ | 4- | 5- | 5- | 4- | 5- | View archive |
| 20 | 2021/03/03 | 19 | 4+ | 5- | 4+ | 3- | 3- | 2+ | 2 | 3- | 5- | View archive |
| 21 | 2021/02/07 | 18 | 4+ | 5- | 4- | 4- | 3 | 2- | 2- | 1+ | 5- | View archive |
| 22 | 2021/11/02 | 17 | 3+ | 5- | 3- | 4- | 3+ | 2+ | 3- | 2 | 5- | View archive |
| 23 | 2021/08/02 | 15 | 1 | 0+ | 0+ | 2- | 3- | 4 | 5- | 4 | 5- | View archive |
| 24 | 2021/01/25 | 15 | 2- | 2- | 3+ | 3+ | 2+ | 3- | 2+ | 5- | 5- | View archive |
| 25 | 2021/05/26 | 12 | 1- | 1 | 1 | 1 | 3- | 3 | 5- | 3 | 5- | View archive |
| 26 | 2021/04/15 | 12 | 3 | 3+ | 5- | 1 | 2+ | 2 | 1- | 1+ | 5- | View archive |
| 27 | 2021/10/10 | 11 | 0+ | 2- | 1 | 1+ | 3- | 2+ | 2+ | 5- | 5- | View archive |
| 28 | 2021/08/27 | 21 | 3 | 1- | 2 | 4 | 4 | 4 | 4+ | 4 | 4+ | View archive |
| 29 | 2021/02/20 | 21 | 3 | 3- | 4 | 3 | 3 | 4+ | 4 | 4 | 4+ | View archive |
| 30 | 2021/02/21 | 20 | 4- | 4- | 4+ | 4 | 4 | 2 | 2 | 3 | 4+ | View archive |
| 31 | 2021/02/24 | 19 | 3- | 3- | 4 | 3 | 2 | 4 | 4+ | 4- | 4+ | View archive |
| 32 | 2021/03/13 | 16 | 3 | 4+ | 3- | 3- | 2- | 3- | 4- | 3+ | 4+ | View archive |
| 33 | 2021/04/07 | 15 | 2 | 2+ | 3- | 4- | 4- | 4+ | 3 | 1 | 4+ | View archive |
| 34 | 2021/03/06 | 15 | 4 | 4+ | 3 | 2+ | 3 | 1+ | 2+ | 2+ | 4+ | View archive |
| 35 | 2021/07/14 | 14 | 0 | 1- | 1 | 2+ | 4- | 4+ | 4 | 3 | 4+ | View archive |
| 36 | 2021/05/27 | 14 | 4+ | 3 | 4 | 3 | 2 | 2+ | 2 | 1 | 4+ | View archive |
| 37 | 2021/04/23 | 13 | 3- | 3- | 2 | 2 | 1 | 3 | 3- | 4+ | 4+ | View archive |
| 38 | 2021/04/26 | 12 | 4+ | 4 | 3 | 1 | 2- | 1- | 1- | 2- | 4+ | View archive |
| 39 | 2021/02/13 | 12 | 3 | 3 | 2+ | 4+ | 3- | 1+ | 1- | 2+ | 4+ | View archive |
| 40 | 2021/12/01 | 18 | 4 | 4- | 3- | 2+ | 3 | 3+ | 3 | 4- | 4 | View archive |
| 41 | 2021/11/06 | 17 | 4 | 3 | 3 | 3+ | 2- | 4- | 3 | 3 | 4 | View archive |
| 42 | 2021/02/22 | 17 | 4- | 4 | 2+ | 3 | 3 | 2+ | 4- | 3+ | 4 | View archive |
| 43 | 2021/02/02 | 16 | 4 | 4 | 4- | 3- | 4- | 2+ | 1- | 2- | 4 | View archive |
| 44 | 2021/02/19 | 15 | 2 | 1+ | 1+ | 2- | 4- | 4- | 4 | 4 | 4 | View archive |
| 45 | 2021/10/31 | 14 | 2+ | 2+ | 0+ | 3 | 4 | 2+ | 3 | 4 | 4 | View archive |
| 46 | 2021/09/08 | 14 | 4 | 2- | 3 | 4 | 3 | 2+ | 2+ | 1 | 4 | View archive |
| 47 | 2021/02/25 | 14 | 4 | 4- | 3- | 2 | 1 | 3- | 3- | 3 | 4 | View archive |
| 48 | 2021/06/30 | 13 | 0+ | 2 | 3- | 3 | 1+ | 3 | 4- | 4 | 4 | View archive |
| 49 | 2021/06/16 | 13 | 4 | 3 | 2+ | 2+ | 2 | 3- | 2+ | 3 | 4 | View archive |
| 50 | 2021/11/16 | 12 | 3+ | 4 | 3- | 2+ | 2 | 2+ | 2- | 2 | 4 | View archive |
Latest news
Saturday, 2 December 2023
Coronal hole faces Earth
Wednesday, 29 November 2023
M9.8 solar flare with earth-directed CME
Friday, 10 November 2023
Coronal mass ejection impact expected on 11 November
Latest forum messages
Magnetic Pole Excursion? 28Incoming Regions 1162Filaments 444Relationship of polar field strength to sunspot hemispheric frequency 10AR 13513 22
More topicsSupport SpaceWeatherLive.com!
A lot of people come to SpaceWeatherLive to follow the Sun's activity or if there is aurora to be seen, but with more traffic comes higher server costs. Consider a donation if you enjoy SpaceWeatherLive so we can keep the website online!
Space weather facts
| Last X-flare | 2023/08/07 | X1.51 |
| Last M-flare | 2023/12/06 | M2.3 |
| Last geomagnetic storm | 2023/12/02 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2023 | 105.4 +6 |