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. |
1B7.13 Kp1- | 2B6.8 Kp0 | 3B2.98 Kp1 | ||||
4C3.3 Kp1 | 5B6.95 Kp2+ | 6Kp2+ | 7B1.86 Kp1+ | 8B1.96 Kp3 | 9B4.23 Kp2 | 10B7.47 Kp2 |
11Kp4+ | 12Kp4- | 13B5.37 Kp2 | 14B5.28 Kp1- | 15B1.42 Kp2 | 16M4.24 Kp3- | 17C2.42 Kp4- |
18C3.53 Kp3- | 19C1.87 Kp3- | 20C2.12 Kp2 | 21B4.08 Kp2- | 22B2.28 Kp3 | 23B6.31 Kp5 | 24B5.58 Kp4 |
25C3.25 Kp3- | 26C1.59 Kp3 | 27C1.69 Kp3- | 28B2.75 Kp1+ | 29B5.63 Kp2 | 30B9.26 Kp2- | 31C8.19 Kp2+ |
Latest news
Thursday, 11 September 2025
Coronal hole faces Earth
Sunday, 31 August 2025
M2.7 solar flare with earth-directed CME!
Tuesday, 5 August 2025
M4.4 solar flare from sunspot region 4168
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Space weather facts
| Last X-flare | 2025/06/19 | X1.9 |
| Last M-flare | 2025/11/04 | M3.5 |
| Last geomagnetic storm | 2025/10/30 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| September 2025 | 129.8 -3.7 |
| November 2025 | 51.3 -78.5 |
| Last 30 days | 95.5 -32.8 |