Saint Martin's summer
noun
mild, warm weather similar to Indian summer, occurring in November.
Origin of Saint Martin's summer
First recorded in 1585–95; from the occurence of such weather around the feast of St. Martin, celebrated on November 11
British Dictionary definitions for saint martin's summer
Saint Martin's summer
noun usually abbreviated to: St Martin's summer
a period of unusually warm weather in the late autumn, esp early November
Word Origin for Saint Martin's summer
referring to St Martin's feast-day, Oct 31 in the pre-Gregorian calendar (now Nov 11)