Solar Cycle 24 activity has peaked and it is trending down to minimal Sunspot numbers. As most Solar Cycles are nominally 11 years in length, one might guess that December 2019 would be the end of Cycle 24 and the start of Solar Cycle 25.
But don’t bet too much money on that date. Eleven years is 132 months. But Cycle 23 was not completed until 149 months after it began. The chart (courtesy of Solen.info) below shows the current state of Cycle 24:
Looking at the Solar Cycle 24 progress chart (courtesy of Solen.info) below one can see that the South Polar Field (green line) has been the source of most of the Sunspot activity the past year or so. And it has really taken a tumble since midyear.










