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. |
1B8.37 Kp3 | 2Kp3- | 3B6.96 Kp2+ | 4C1.59 Kp3- | 5B6.24 Kp2 | 6B9.84 Kp6+ | |
7Kp5- | 8C2.23 Kp2+ | 9C4.74 Kp2 | 10C1.2 Kp3- | 11B4.86 Kp5+ | 12C1.64 Kp3+ | 13B8.71 Kp2- |
14B9.42 Kp5 | 15C1.86 Kp5+ | 16C3.17 Kp5 | 17B4.51 Kp5- | 18B9.22 Kp2+ | 19B2.61 Kp4- | 20C5.25 Kp4- |
21Kp2+ | 22Kp2+ | 23C1.58 Kp4- | 24B4.45 Kp3- | 25B8.76 Kp3 | 26B2.3 Kp1- | 27B6.53 Kp3+ |
28C3.09 Kp4- | 29B4.59 Kp3+ | 30B1.81 Kp3+ | 31Kp3 | |||
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 |