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. |
1Kp4- | 2B1.55 Kp3- | 3B1.63 Kp3+ | 4Kp5- | 5Kp3- | 6B1.75 Kp2+ | |
7B2.6 Kp2- | 8B1.76 Kp1 | 9B7 Kp1+ | 10Kp2+ | 11B6.22 Kp2- | 12M2.88 Kp1 | 13M1.46 Kp2- |
14C2.14 Kp1+ | 15Kp3 | 16Kp4- | 17B6.89 Kp3 | 18B2.29 Kp2- | 19Kp2- | 20Kp1+ |
21B1.55 Kp2+ | 22B2.68 Kp2- | 23B2.02 Kp1+ | 24Kp2+ | 25B4.49 Kp3 | 26B1.2 Kp3+ | 27B1.79 Kp4- |
28Kp2+ | 29B1.75 Kp4+ | 30Kp4+ | ||||
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!
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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 | 117.9 -6.1 |
| Last 30 days | 121.2 +12.1 |