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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May 1999 |
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Monday Mon. |
Tuesday Tues. |
Wednesday Wed. |
Thursday Thurs. |
Friday Fri. |
Saturday Sat. |
Sunday Sun. |
1C4.3 Kp4 | 2M1.08 Kp3+ | |||||
3M6.41 Kp3 | 4C4.13 Kp1+ | 5C2.01 Kp3 S1 | 6C4.77 Kp3- S1 | 7M4.67 Kp3- | 8M6.7 Kp2- | 9X1.1 Kp2- |
10M3.6 Kp2 | 11C6.76 Kp0+ | 12C3.23 Kp3+ | 13C1.18 Kp5 | 14C2.37 Kp3 | 15B9.79 Kp2 | 16M1.8 Kp1+ |
17M3.33 Kp1 | 18M1.29 Kp5 | 19C1.84 Kp3 | 20C3.31 Kp3- | 21C3.51 Kp3- | 22C2.13 Kp1+ | 23C4.93 Kp3+ |
24C4.74 Kp4 | 25C3.66 Kp4 | 26M1.71 Kp2+ | 27M1.07 Kp3 | 28C3.41 Kp2+ | 29M2.37 Kp2- | 30M1.25 Kp2+ |
31C6.93 Kp1+ | ||||||
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!
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Incoming & Unnumbered Active Regions 141AR4366 218Space Weather Memes 780Current Farside Activity 350Do the high-resolution sunspot counts point to more complex sunspots? 38
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Space weather facts
| Last X-flare | 2026/02/01 | X1.0 |
| Last M-flare | 2026/02/01 | M5.2 |
| Last geomagnetic storm | 2026/01/28 | Kp5+ (G1) |
| Spotless days | |
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| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
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| December 2025 | 124 +32.2 |
| Last 30 days | 119.2 +2.7 |