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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August 2001 |
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Monday Mon. |
Tuesday Tues. |
Wednesday Wed. |
Thursday Thurs. |
Friday Fri. |
Saturday Sat. |
Sunday Sun. |
1C3.5 Kp4- | 2C6.96 Kp2+ | 3M2.18 Kp4+ | 4M1.38 Kp2+ | 5M7.02 Kp5 | ||
6C7.86 Kp4 | 7M1.67 Kp3- | 8C6.46 Kp3- | 9M1.12 Kp3 | 10M1.15 Kp3- S1 | 11C7.52 Kp3- | 12C3.87 Kp4- |
13C6.68 Kp5+ | 14M1.39 Kp3 | 15C4.48 Kp2 | 16C5.58 Kp1 S2 | 17C2.33 Kp7 S2 | 18C5 Kp4- S1 | 19C1.74 Kp3 |
20C5.17 Kp3- | 21M2.21 Kp4- | 22M1.51 Kp4+ | 23M1.2 Kp4- | 24M1.76 Kp1+ | 25X7.7 Kp3+ | 26M1.88 Kp3 |
27M2.73 Kp5- | 28M1.85 Kp4 | 29M2.38 Kp2+ | 30M4.32 Kp4- | 31M4.23 Kp4 | ||
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 |