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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September 2023 |
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Monday Mon. |
Tuesday Tues. |
Wednesday Wed. |
Thursday Thurs. |
Friday Fri. |
Saturday Sat. |
Sunday Sun. |
1M1.2 Kp3+ S1 | 2M3.3 Kp5+ | 3M6 Kp5+ | ||||
4C6.6 Kp3- | 5M2 Kp4 | 6C5.3 Kp3+ | 7M2.12 Kp2 | 8C4.2 Kp3- | 9C8.4 Kp3- | 10C8.3 Kp1+ |
11M1.3 Kp2 | 12M2.5 Kp5+ | 13C5.4 Kp5- | 14M2.5 Kp4+ | 15M1.7 Kp3 | 16M3.43 Kp3 | 17C3.5 Kp3+ |
18C4.9 Kp5 | 19M4 Kp6+ | 20M8.2 Kp4- | 21M8.72 Kp3- | 22M1.9 Kp3+ | 23M1.5 Kp3- | 24M4.43 Kp6- |
25C9.9 Kp5+ | 26C5.7 Kp5 | 27C4.6 Kp4- | 28M1.3 Kp3 | 29C7.5 Kp4 | 30M1.2 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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Sunspot region 4274 52AR 14272 38Unspecified geomagnetic activity 3288AR 14273 19Space Weather Memes 752
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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 |