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. |
1C2.39 Kp1 | 2M1.08 Kp3- | 3M1.44 Kp4- | 4C6.47 Kp3 | 5C9.73 Kp3 | 6C7.9 Kp2 | 7C2.97 Kp2 |
8C7.37 Kp4 | 9M2.66 Kp2 | 10M5.01 Kp3 | 11C2.11 Kp3- | 12C3 Kp3+ | 13C4.89 Kp3- | 14M1.17 Kp3- |
15M1.35 Kp3 | 16C3.47 Kp3 | 17C5.74 Kp3 | 18C4.27 Kp2 | 19M1.73 Kp2 | 20X1.1 Kp3+ | 21M1.59 Kp4 |
22C4.1 Kp4- | 23C6.21 Kp5- | 24M1.56 Kp5- | 25M1.06 Kp3- | 26M1.5 Kp4- | 27C4.5 Kp2+ | 28M2.27 Kp3 S1 |
29C8.27 Kp5 S1 | 30C5.37 Kp2 S1 | 31C1.87 Kp4 | ||||
Latest news
Monday, 19 January 2026
CME impact! S4 solar radiation storm
Sunday, 18 January 2026
X1.9 solar flare with earth-directed CME
Wednesday, 31 December 2025
Happy New Year! Celebrate with an M7.1 solar flare!
Latest forum messages
Do the high-resolution sunspot counts point to more complex sunspots? 19AR 14342/14344 16AR 4345 36Ar 14349 14Filaments and prominences 453
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Space weather facts
| Last X-flare | 2026/01/18 | X1.9 |
| Last M-flare | 2026/01/21 | M3.4 |
| Last geomagnetic storm | 2026/01/22 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| December 2025 | 124 +32.2 |
| January 2026 | 119.6 -4.4 |
| Last 30 days | 122.3 +11.2 |