Solar Flare Watch2026: sunspot number and solar flux
| Month | Sunspot number | F10.7 flux |
|---|---|---|
| January | 119.2 | 151.2 |
| February | 73.5 | 135.9 |
| March | 89.9 | 130.7 |
| April | 91.6 | 120.0 |
| May | 99.4 | 125.7 |
| June | 104.5 | 138.2 |
| July | 80.8 | 136.0 |
| August | 81.3 | 116.2 |
| September | 68.7 | 105.4 |
About this page
Monthly sunspot number and 10.7 cm solar radio flux in 2026, from NOAA SWPC solar-cycle data.