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+ | ||||||
2Kp2 | 3Kp2 | 4A8.1 Kp3 | 5Kp2- | 6Kp2 | 7Kp2 | 8Kp2- |
9Kp2 | 10Kp2 | 11B2.3 Kp2- | 12Kp3- | 13Kp3- | 14Kp1 | 15Kp2- |
16Kp2 | 17A9 Kp2- | 18Kp3 | 19Kp4+ | 20Kp3- | 21Kp3 | 22Kp2+ |
23A2.6 Kp3+ | 24Kp3- | 25Kp2- | 26Kp3 | 27Kp2 | 28Kp2+ | 29Kp3+ |
30A1.1 Kp4 | 31Kp4 | |||||
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
AR4405 79X1.5 CME (2026-03-30) 115Space Weather Watch App 6Comet C/2026 A1 (MAPS) for the southern hemisphere 26Photographing auroras 239
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Space weather facts
| Last X-flare | 2026/03/30 | X1.4 |
| Last M-flare | 2026/03/28 | M1.3 |
| Last geomagnetic storm | 2026/03/25 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (3%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| February 2026 | 78.2 -34.3 |
| March 2026 | 88.4 +10.2 |
| Last 30 days | 88.4 +14.9 |
This day in history*
Aurora on this day in history
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