|Updated forecast for Solar Cycle
25 (far right) |
in comparison with Cycles 23 and 24.
(NOAA Space Weather Prediction Center image)
The December 9 forecast update continues the previous prediction that Cycle 25 will be of average intensity and similar to currently-ending Cycle 24. A more specific timing prediction forecasts that official solar minimum between Cycles 24 and 25 will come this April (+/- 6 months) and that Cycle 25 will peak in July, 2025 (+/- 8 months) with a maximum smoothed sunspot number of 115.
The update notes that, if the April 2020 forecast minimum is correct, Cycle 24 will have lasted 11.4 years and will be the 7th-longest on record.