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 2020 |
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Monday Mon. |
Tuesday Tues. |
Wednesday Wed. |
Thursday Thurs. |
Friday Fri. |
Saturday Sat. |
Sunday Sun. |
1B1.9 Kp1 | 2Kp3+ | |||||
3B3 Kp3+ | 4B1 Kp3+ | 5B1.4 Kp2+ | 6B2.2 Kp2 | 7Kp2- | 8C1.5 Kp2 | 9Kp1- |
10B2.3 Kp1- | 11B2.6 Kp1 | 12B2 Kp1+ | 13Kp2- | 14Kp2- | 15C2 Kp1 | 16B1.2 Kp1 |
17Kp1 | 18Kp3 | 19B3.9 Kp3- | 20B1.2 Kp1 | 21B1.6 Kp2- | 22Kp2+ | 23Kp3- |
24Kp1- | 25Kp1 | 26Kp2+ | 27Kp3+ | 28Kp5- | 29Kp3+ | 30Kp3+ |
31Kp5- | ||||||
Latest news
Sunday, 7 December 2025
M8.1 solar flare with earth-directed CME
Monday, 1 December 2025
X1.9 solar flare, Coronal hole faces Earth
Friday, 14 November 2025
X4.0 solar flare
Latest forum messages
AR4294 / 4296 / 4298 395AR 4299 117AR4299 M8.1 CME 2025/12/06 88New paper on the Gannon Storm 10-11 May 2024 2Electron event 10
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Space weather facts
| Last X-flare | 2025/12/08 | X1.1 |
| Last M-flare | 2025/12/08 | M1.8 |
| Last geomagnetic storm | 2025/12/04 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2025 | 91.8 -22.8 |
| December 2025 | 162.7 +70.9 |
| Last 30 days | 108 +13.3 |