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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1Kp3 | 2Kp4- | |||||
3A1.57 Kp3 | 4Kp3 | 5B2.06 Kp2 | 6Kp2 | 7B1.15 Kp3+ | 8Kp3+ | 9B3.37 Kp4- |
10Kp3+ | 11A4.43 Kp3- | 12Kp2+ | 13Kp1 | 14Kp1- | 15B1.42 Kp0+ | 16Kp1- |
17Kp2+ | 18Kp3- | 19Kp2 | 20A8.23 Kp3 | 21Kp2 | 22Kp1 | 23Kp0+ |
24Kp1+ | 25Kp2- | 26A3 Kp1 | 27Kp2+ | 28Kp4+ | 29A1.57 Kp3 | 30Kp3 |
31Kp3 | ||||||
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
Growth of Cycle 25 995Incoming & Unnumbered Active Regions 240CMes from ar 4392 (19-21st of march) 267AR4401 15Space Weather Watch App 4
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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 |