Saint Martin's summer

Thesaurus

Noun

1.

Saint Martin's summer - a period of unusually warm weather in the autumn Indian summer period, period of time, time period - an amount of time; "a time period of 30 years"; "hastened the period of time of his recovery"; "Picasso's blue period" autumn, fall - the season when the leaves fall from the trees; "in the fall of 1973"