It's rather more than a rarity and for periods much longer than a few hours.
Case in point:
"European Wind Turbines at a Standstill Amid an Ongoing “Wind Drought” ... But as of recently, barely even a breeze has made its way through the through the winter air. ... "Britain is in the middle of a wind drought — and the timing couldn't have been worse. For several days now, the U.K. and western Europe have been calm, with barely a breeze," Thomas Moore writes for Sky News. ... Wind speeds in the U.K. have been rather slow recently, and this is impacting the country's ability to utilize wind energy.
According to Yale Environment 360, the phrase "wind drought" is exactly what it sounds like — it refers to an extended period of time that an area lacks wind, or experiences slower-than-usual wind speeds. In 2021, wind speeds were 15 percent slower than in previous years, making for one of the least windy periods in the U.K. in nearly 60 years."
https://www.greenmatters.com/news/wind-drought
> Renewables will have to recoup their investments in the winter
How is solar going to recoup its investment when it produces no power during the winter months?