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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December 2015 |
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Monday Mon. |
Tuesday Tues. |
Wednesday Wed. |
Thursday Thurs. |
Friday Fri. |
Saturday Sat. |
Sunday Sun. |
1C5.2 Kp4- | 2C3.17 Kp3- | 3C1.74 Kp1+ | 4C5.71 Kp2+ | 5C2.8 Kp4- | 6C1.61 Kp4+ | |
7C1.59 Kp4- | 8C9.63 Kp4- | 9C2.05 Kp3+ | 10C5.54 Kp5 | 11C8.02 Kp4+ | 12M1.13 Kp3+ | 13C7.56 Kp3- |
14C1.42 Kp5+ | 15C1.76 Kp5- | 16C9.54 Kp4- | 17C2.46 Kp4- | 18C6.65 Kp3- | 19C6.49 Kp4 | 20C8.64 Kp7- |
21M4.07 Kp7- | 22M2.43 Kp4+ | 23M6.75 Kp3+ | 24M1.68 Kp3+ | 25C9.84 Kp2+ | 26M1.12 Kp4+ | 27C4 Kp3 |
28M2.66 Kp2 | 29C9.83 Kp2+ | 30C6.19 Kp1+ | 31Kp6- | |||
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
Incoming & Unnumbered Active Regions 32Current Farside Activity 247Geminid Meteor Shower 20Coronal Hole 06 41Filaments and prominences 414
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Space weather facts
| Last X-flare | 2025/12/08 | X1.1 |
| Last M-flare | 2025/12/12 | M1.1 |
| Last geomagnetic storm | 2025/12/12 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2025 | 91.8 -22.8 |
| December 2025 | 135.1 +43.3 |
| Last 30 days | 107.1 +10.8 |