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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April 2025 |
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Monday Mon. |
Tuesday Tues. |
Wednesday Wed. |
Thursday Thurs. |
Friday Fri. |
Saturday Sat. |
Sunday Sun. |
1M5.6 Kp2+ S2 | 2C8 Kp4- S1 | 3C3.4 Kp5- | 4C5.7 Kp5- | 5M1 Kp6- | 6C3 Kp5 | |
7C5.3 Kp4 | 8M1.5 Kp4+ | 9C9 Kp5- | 10C5.3 Kp4 | 11M1 Kp4 | 12M2.7 Kp4+ | 13M3.24 Kp4- |
14M4.2 Kp5- | 15M1.52 Kp6+ | 16C8 Kp8- | 17C4.6 Kp4- | 18M4.4 Kp4+ | 19C4.3 Kp5- | 20M1 Kp5 |
21M1.9 Kp5+ | 22M1.3 Kp4- | 23C3.9 Kp3- | 24C3.8 Kp4- | 25C2.9 Kp2 | 26C1.7 Kp2 | 27C2.1 Kp3- |
28C3.9 Kp2+ | 29M1.7 Kp2 | 30M2.03 Kp3+ | ||||
Latest news
Wednesday, 14 May 2025
Another X-flare! Potent sunspot region 4087!
Tuesday, 13 May 2025
X1.1 solar flare from sunspot region 4086
Tuesday, 15 April 2025
CME arrival, G3 storm watch
Latest forum messages
AR 14098 13Strong far side CME 407Filaments and prominences 178Unspecified geomagnetic activity 2511Solar Transit, Artifacts, or Radiation 21
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Space weather facts
| Last X-flare | 2025/05/14 | X2.7 |
| Last M-flare | 2025/05/21 | M1.2 |
| Last geomagnetic storm | 2025/05/17 | Kp6+ (G2) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| April 2025 | 140.6 +6.4 |
| May 2025 | 73.1 -67.5 |
| Last 30 days | 84.8 -31 |