Below you'll find a daily report brought to you by the NOAA about the solar activity and geophysical activity during the past day and the prediction for the coming days. This page is daily updated around midnight.
Solar and Geophysical Activity Summary 2026 Mar 20 0245 UTCBegin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0830 0830 0830 110 0900 0900 0901 260 2007 2007 2008 1900
10 cm 106 SSN 038 Afr/Ap 003/003 X-ray Background B2.3 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 9.2e+05 GT 10 MeV 1.7e+04 p/(cm2-ster-day) (GOES-18 satellite synchronous orbit W137 degrees) Daily Electron Fluence GT 2 MeV 1.60e+08 e/(cm2-ster-day) (GOES-19 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 0 1 1 0 2 2 0 1 Planetary 1 1 1 1 1 1 0 0
None.
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| Last X-flare | 2026/02/04 | X4.21 |
| Last M-flare | 2026/03/18 | M2.7 |
| Last geomagnetic storm | 2026/03/20 | Kp7- (G3) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (4%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| February 2026 | 78.2 -34.3 |
| March 2026 | 77.5 -0.7 |
| Last 30 days | 63.5 -42.2 |