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. |
1C9.5 Kp4 | 2C2.9 Kp2+ | |||||
3C2.8 Kp1+ | 4C4.6 Kp4+ | 5M1.7 Kp3+ | 6C1.6 Kp2+ | 7M1.6 Kp3 | 8C3.9 Kp5 | 9C2.5 Kp6- |
10C2.1 Kp3- | 11M1.1 Kp3- | 12C8.8 Kp5 | 13C7.9 Kp5 | 14M1.1 Kp5+ | 15C4.1 Kp4 | 16C6.5 Kp3+ |
17C9.7 Kp3+ | 18C3 Kp3+ | 19M1.5 Kp5- | 20C6 Kp2+ | 21M1.2 Kp5+ | 22C5 Kp6- | 23C4.5 Kp4 |
24C5.1 Kp4+ | 25C9.4 Kp4 | 26M1 Kp6- | 27M2 Kp5- | 28X1.1 Kp4 | 29M1.9 Kp3+ | 30M1.6 Kp2+ |
31M1.2 Kp2 S1 | ||||||
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
CMes from ar 4392 (19-21st of march) 264Solar Transit, Artifacts, or Radiation 86Incoming & Unnumbered Active Regions 232Growth of Cycle 25 993Photographing auroras 231
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Space weather facts
| Last X-flare | 2026/02/04 | X4.21 |
| Last M-flare | 2026/03/18 | M2.7 |
| Last geomagnetic storm | 2026/03/23 | Kp5 (G1) |
| 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 | 77.7 -0.5 |
| Last 30 days | 72.3 -15.7 |