Solar Cycle 25 - Top Solar Radiation Storms Help
On this page you will find an overview of the strongest solar radiation storms from Solar Cycle 25 together with links to more information in our archive.
Latest news
Tuesday, 15 April 2025
CME arrival, G3 storm watch
Friday, 28 March 2025
X1.1 solar flare
Monday, 24 March 2025
Coronal hole faces Earth
Latest forum messages
2025/04/12-13 Filament CMEs 2025/04/16 G3 Watch 292Incoming & Unnumbered Active Regions 1737AR4062 30Filaments and prominences 64AR 4060 30
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Space weather facts
| Last X-flare | 2025/03/28 | X1.1 |
| Last M-flare | 2025/04/15 | M1.2 |
| Last geomagnetic storm | 2025/04/15 | Kp6+ (G2) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| March 2025 | 134.2 -20.4 |
| April 2025 | 124.1 -10.1 |
| Last 30 days | 124.7 -16.6 |