The aurora and solar activity archive
Searching for historical solar and auroral activity data? The archive is filled with data between the year 1996 and yesterday. You can choose a viewing mode to quickly look for days with interesting space weather and pick a day to view the archived data for that day with more detailed space weather data.
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Sunday Sun. |
1C2.5 Kp3+ | ||||||
2B5.98 Kp3+ | 3C1.86 Kp3+ | 4C5.2 Kp2 | 5C2.17 Kp2- | 6C1.4 Kp2 | 7C1.15 Kp1 | 8C1.03 Kp3 |
9Kp1+ | 10B5.28 Kp3- | 11Kp2- | 12B3.21 Kp3- | 13Kp4- | 14Kp2+ | 15Kp1+ |
16B8.07 Kp2- | 17B9.15 Kp3 | 18C5.61 Kp3- | 19C2.56 Kp4 | 20C5.48 Kp2+ | 21C4.29 Kp3- | 22B8.13 Kp2+ |
23B9.18 Kp2 | 24C1.57 Kp4+ | 25B8.23 Kp3- | 26B9.47 Kp0+ | 27B9.1 Kp1- | 28B8.02 Kp0+ | 29C2.38 Kp2- |
30B6.37 Kp2- S2 | ||||||
Latest news
Tuesday, 17 March 2026
M2.7 solar flare, CME arrival possible
Sunday, 1 February 2026
Complex sunspot region 4366
Monday, 19 January 2026
CME impact! S4 solar radiation storm
Latest forum messages
AR4392 (including CMEs) 72Growth of Cycle 25 985Incoming & Unnumbered Active Regions 223Current Farside Activity 416CH 31 HSS 10
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Space weather facts
| Last X-flare | 2026/02/04 | X4.21 |
| Last M-flare | 2026/03/17 | M1.3 |
| Last geomagnetic storm | 2026/03/14 | Kp6 (G2) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (4%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| February 2026 | 78.2 -34.3 |
| March 2026 | 82.4 +4.2 |
| Last 30 days | 61.1 -58.1 |