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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Tuesday Tues. |
Wednesday Wed. |
Thursday Thurs. |
Friday Fri. |
Saturday Sat. |
Sunday Sun. |
1B4.05 Kp5- | 2B4.04 Kp4 | 3C1.13 Kp3- | ||||
4Kp1+ | 5Kp2- | 6C1.43 Kp4- | 7Kp3- | 8Kp2 | 9Kp1+ | 10Kp1 |
11B2.57 Kp1+ | 12B1.6 Kp2- | 13Kp2 | 14Kp1+ | 15B1.57 Kp1 | 16B2.23 Kp1- | 17B1.73 Kp2- |
18B1.43 Kp4 | 19B1.49 Kp2+ | 20B8.98 Kp2+ | 21C3.05 Kp1 | 22B3.53 Kp1+ | 23B6.78 Kp4 | 24C1.24 Kp3- |
25B3.62 Kp5 | 26Kp5- | 27B3.24 Kp3- | 28Kp2- | 29Kp1+ | 30Kp1 | |
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
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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 | 107.7 +21.8 |
| Last 30 days | 100 +44.8 |
This day in history*
Aurora on this day in history
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