Definition of St Martin's summer in English:

St Martin's summer

Line breaks: St Martin's sum¦mer

noun

British dated
  • A period of fine weather around 11 November (the feast day of St Martin of Tours).
    More example sentences
    • Poins calls Falstaff ‘Martlemas', perhaps alluding to St Martin's summer (compare Prince Harry's ‘All-hallown summer’); or to Martinmas beef, fattened for slaughter by that date.
    • Of course, it might not feel like Winter if one is experiencing a "St. Martin's Summer" -- the equivalent of an "Indian Summer."

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