Saint Martin's summer

Saint Martin's summer

n usually abbreviated to St Martin's summer

(Earth Sciences / Physical Geography) a period of unusually warm weather in the late autumn, esp early November

[referring to St Martin's feast-day, Oct. 31 in the pre-Gregorian calendar (now Nov. 11)]

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"