> +4 Experts Predict a Long, Deep Solar Minimum | Spaceweather.com The next solar minimum is expected around 2030 or 2031, which will mark the end of solar cycle 25 and the beginning of solar cycle 26. After the current cycle's peak activity around 2024-2025, the sun's sunspot numbers are predicted to decline, leading into this minimum period.
> A grand solar minimum is a period of significantly reduced solar activity, lasting for decades or centuries, characterized by lower sunspot numbers and a decrease in solar irradiance. Historically, grand solar minima like the Maunder Minimum (1645-1715) coincided with cooler periods, such as the Little Ice Age, though some evidence suggests the Little Ice Age began before the Maunder Minimum. While a future grand solar minimum is predicted by some studies for the 2030-2040 period, any cooling effect would be temporary and is not expected to reverse the long-term trend of human-caused global warming.