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+ | 2Kp2+ | |||||
3Kp2 | 4Kp3- | 5Kp2 | 6Kp4 | 7A1.1 Kp3+ | 8Kp3- | 9Kp3- |
10Kp2 | 11Kp3 | 12Kp2 | 13Kp1+ | 14Kp2- | 15Kp3- | 16Kp2+ |
17Kp3 | 18Kp4- | 19Kp4 | 20A1.1 Kp3- | 21Kp4- | 22Kp3- | 23Kp2+ |
24Kp2 | 25Kp1+ | 26A9.5 Kp2+ | 27Kp2 | 28Kp2+ | 29Kp4- | |
Latest news
Monday, 30 March 2026
X1.5 solar flare
Tuesday, 17 March 2026
M2.7 solar flare, CME arrival possible
Sunday, 1 February 2026
Complex sunspot region 4366
Latest forum messages
AR4419 25Coronal Holes 42/44 1Current Farside Activity 456Space Weather Watch App 15Filaments and prominences 545
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Space weather facts
| Last X-flare | 2026/03/30 | X1.5 |
| Last M-flare | 2026/04/09 | M1.0 |
| Last geomagnetic storm | 2026/04/03 | Kp7- (G3) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (3%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| March 2026 | 85.9 +7.7 |
| April 2026 | 89.7 +3.8 |
| Last 30 days | 93.4 +33.3 |
