https://seasonsyear.com/Ukraine#:~:text=Autumn%20in%20Ukraine,59%2D68%20%C2%B0F).
Ukrainian autumn is characterized by a significant rainfall. In recent years there has been a decrease. The most rainy months are October and November. September is quite warm — the air temperature is +15 +20 °C (59-68 °F).
It’s mud season again in Ukraine. “Spring and autumn are the most difficult periods for warfare,” says reservist Colonel Oleh Zhdanov, a former operations officer on the Ukrainian general staff. “The main problem is the rain.” Farm tracks leading to the front lines are churned into slippery swamps, armoured vehicles founder, soldiers slip and fall and sometimes break bones. “As the temperature drops, the fighting slows down,” says Colonel Zhdanov. “When roads are impassable, the war usually becomes more positional.”
“The rain feels like needles on every part of your body; you are pouring water out of your boots,” says Andriy, a Ukrainian unit commander in the province of Luhansk. His poncho is his most treasured piece of kit. “I love it, I could write a book about it.” By day, it keeps the rain off; at night he stretches it into a canopy above his foxhole. Other soldierly essentials are a water-resistant sleeping bag, good thermal underwear
