There’s a lot of evidence mounting that solar cycle 25 will usher in a new grand solar minimum. Since about October 2005, when the sun’s magnetic activity went into a sharp fall, solar activity has been markedly lower, with solar cycle 24 being the lowest in over 100 years.
Cycle 24 is part of a weakening progression of solar cycles since 1980:
Meteorologist Paul Dorian at Vencore weather writes:
All indications are that the upcoming solar minimum which is expected to begin in 2019 may be even quieter than the last one which was the deepest in nearly a century.
Some scientists are even saying that we are on the cusp of a new grand solar minimum, and the upcoming cycle 25 may have even lower cycles after it.