In other countries a similar expression is used: In Hungary, Poland and Russia this time of year is called, similar to the German usage, Weibersommer (Hungarian: vénasszonyok nyara, Polish: babie lato, Russian: babje leto). In North America it is called Indian Summer, or été indien, in Quebec. In Germany, by contrast, "Indian Summer" refers to the changing colors of the fall foliage in the New England States. German tourists visiting the northeastern United States might, in this vein, for instance say: "Let's take a drive through the New England States and enjoy the glorious colors of the Indian Summer!"
In Finland, this time of year is referred to as Ruska-Aika (time of the brown coloring) and in Sweden it is called the brittsommar (birgatta summer). In the Mediterranean countries this warm period happens later in the year, in November, and is referred to as the St. Martins Summer.
Uttrycket brittsommar hänger samman med Birgitta och Britta, som har namnsdag 7 oktober. Det var då det hölls Brittmässa (ibland skrivet Brittmäss), en officiell höstmarknad. Ibland sägs att det endast är varma perioder runt den 7 oktober som kan kallas brittsommar./Wikipedia
