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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1Kp2 | 2Kp1 | 3Kp1+ | 4Kp0+ | 5Kp2- | ||
6Kp1+ | 7Kp1 | 8Kp2+ | 9Kp3+ | 10Kp3+ | 11Kp3+ | 12Kp3- |
13Kp3- | 14Kp1 | 15Kp2- | 16Kp2+ | 17Kp2 | 18Kp3+ | 19Kp2+ |
20Kp2 | 21Kp2+ | 22Kp2- | 23Kp1- | 24Kp2+ | 25Kp2- | 26Kp1 |
27Kp2+ | 28Kp1 | 29Kp1+ | 30Kp1- | |||
Latest news
Sunday, 7 December 2025
M8.1 solar flare with earth-directed CME
Monday, 1 December 2025
X1.9 solar flare, Coronal hole faces Earth
Friday, 14 November 2025
X4.0 solar flare
Latest forum messages
AR4299 M8.1 CME 2025/12/06 296Ask a powergrid operator anything 45Light pillar 11AR4294 / 4296 / 4298 441Geomagnetic Data / Monitoring 7
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Space weather facts
| Last X-flare | 2025/12/08 | X1.1 |
| Last M-flare | 2025/12/09 | M1.5 |
| Last geomagnetic storm | 2025/12/04 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2025 | 91.8 -22.8 |
| December 2025 | 157.7 +65.9 |
| Last 30 days | 108.9 +11.4 |