Does osel.cz explain it beautifully in its article closest to the Sun? In winter! The Astronomy Yearbook for this year states that the Earth-Sun distance is the smallest on January 3 at 1 o'clock CET. At the moment, the two cosmic bodies are 147.1 million kilometers apart. Someone may be wondering at this point, so why is it cold in our region? If the sun is closest, shouldn't it be summer? To do this, read from astronomie.cz Why is it sometimes cold in winter and sometimes warm weather? Rozhlas.cz published the answer to the question Why is it winter in winter? little Eliška again answered the question In winter, the Earth is closest to the Sun. Why isn't it warmer in winter than in summer? If that's not enough, open a geography textbook from elementary school.