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 2025 |
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Monday Mon. |
Tuesday Tues. |
Wednesday Wed. |
Thursday Thurs. |
Friday Fri. |
Saturday Sat. |
Sunday Sun. |
1C3.4 Kp3+ | 2C3.6 Kp3 | 3M2.9 Kp4 | ||||
4M2 Kp2+ | 5M4.4 Kp3 | 6M1 Kp3- | 7M3.93 Kp1 | 8M2.8 Kp5 | 9M1.7 Kp6- | 10M2.2 Kp4+ |
11M1.6 Kp4+ | 12M1.8 Kp4 | 13C4.3 Kp3+ | 14C2.9 Kp3+ | 15C7.8 Kp2+ | 16C3.2 Kp2- | 17C3.7 Kp2- |
18C2.1 Kp3 | 19M1.1 Kp5- | 20C2.8 Kp4 | 21C3.2 Kp3- | 22M1.79 Kp3 | 23M1.9 Kp2 | 24M1.3 Kp2- |
25M4.56 Kp3 S1 | 26M4.5 Kp3- S1 | 27C9.2 Kp3- S1 | 28M1.5 Kp2 | 29M1 Kp2 | 30M2.7 Kp2+ | 31C6.8 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
Latest forum messages
CMEs from 2025/10/03 50Incoming & Unnumbered Active Regions 2109Comet C/2025 A6 (Lemmon) 72Coronal Hole 85 2Unspecified geomagnetic activity 3204
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Space weather facts
| Last X-flare | 2025/06/19 | X1.9 |
| Last M-flare | 2025/10/03 | M1.2 |
| Last geomagnetic storm | 2025/10/03 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| September 2025 | 129.8 -3.7 |
| October 2025 | 140.1 +10.3 |
| Last 30 days | 131.3 -1.2 |