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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Monday Mon. |
Tuesday Tues. |
Wednesday Wed. |
Thursday Thurs. |
Friday Fri. |
Saturday Sat. |
Sunday Sun. |
1Kp4+ | 2B3.99 Kp2 | 3Kp1- | 4Kp2 | |||
5Kp4- | 6Kp5- | 7Kp4- | 8Kp3- | 9Kp1 | 10B3.06 Kp2 | 11Kp3- |
12Kp4- | 13Kp5 | 14Kp3+ | 15Kp3+ | 16Kp4 | 17Kp3 | 18Kp1+ |
19Kp1 | 20Kp0+ | 21Kp1- | 22Kp1+ | 23Kp3+ | 24Kp5- | 25Kp4+ |
26Kp4+ | 27Kp3+ | 28B1.53 Kp3 | 29Kp1+ | 30Kp3- | 31B3.13 Kp2 | |
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
Broad-spectrum aurora pillars 6Filaments and prominences 456Current Farside Activity 338Do the high-resolution sunspot counts point to more complex sunspots? 24AR 4355 6
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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 | 119.4 -4.6 |
| Last 30 days | 121.8 +8.9 |