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 2016 |
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Tuesday Tues. |
Wednesday Wed. |
Thursday Thurs. |
Friday Fri. |
Saturday Sat. |
Sunday Sun. |
1B4.76 Kp2- | 2B2.94 Kp1+ | 3B3.43 Kp1 | 4C2.59 Kp1- | |||
5C1.69 Kp2+ | 6B3.57 Kp3+ | 7B4.66 Kp3 | 8Kp4+ | 9B1.53 Kp5- | 10C5.7 Kp4 | 11B1.24 Kp4+ |
12Kp2+ | 13Kp2- | 14Kp1+ | 15B2.98 Kp1 | 16B2.43 Kp1 | 17Kp3+ | 18Kp3 |
19Kp2 | 20Kp3- | 21B3.3 Kp6 | 22Kp5- | 23Kp4 | 24Kp3+ | 25Kp4 |
26C1.14 Kp5- | 27B3.82 Kp4- | 28Kp2 | 29B1.24 Kp2 | 30B2.61 Kp1+ | 31B2.84 Kp3+ | |
Latest news
Monday, 19 January 2026
CME impact! S4 solar radiation storm
Sunday, 18 January 2026
X1.9 solar flare with earth-directed CME
Wednesday, 31 December 2025
Happy New Year! Celebrate with an M7.1 solar flare!
Latest forum messages
Filaments and prominences 445CME modelling 9CH 15 60Current Farside Activity 313High Solar Activity/Solar Maximum 43
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Space weather facts
| Last X-flare | 2026/01/18 | X1.9 |
| Last M-flare | 2026/01/21 | M3.4 |
| Last geomagnetic storm | 2026/01/22 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| December 2025 | 124 +32.2 |
| January 2026 | 114.4 -9.6 |
| Last 30 days | 118.6 +9.5 |