Scientists charged with predicting the Sun’s activity for Cycle 25 say it’s likely to be much like that of current Cycle 24, which is declining and predicted to bottom out in 2019 or 2020. Solar Cycle 25 Prediction Panel experts said Cycle 25 may get off to a slow start but is anticipated to peak between 2023 and 2026 with a sunspot range of 95 to 130. This is well below the typical average of 140 to 220 sunspots per solar cycle. The panel expressed high confidence that the coming cycle should break the trend of weakening solar activity seen over the past four cycles. The Solar Cycle Prediction Panel forecasts the number of sunspots expected for solar maximum, along with the timing of the peak and minimum solar activity levels for the cycle. The outlook was presented on April 5 at the 2019 NOAA Space Weather Workshop in Boulder, Colorado.
“We expect Solar Cycle 25 will be very similar to Cycle 24: Another fairly weak cycle, preceded by a long, deep minimum,” said panel co- chair Lisa Upton, a solar physicist with Space Systems Research Corp. “The expectation that Cycle 25 will be comparable in size to Cycle 24 means that the steady decline in solar cycle amplitude, seen from cycles 21 – 24, has come to an end and that there is no indication that we are currently approaching a Maunder-type minimum in solar activity.”