Coming up on November 11th, the Sao Martinho season is celebrated with "castanhas e vinho." This holiday springs from the legend of a Knight, who, on a rainy day, cut his coat into pieces to give warmth to a poor person. This noble gesture suddenly made the weather change and the sun came out: That is what we call a sunny Sao Martinho Summer in the middle of a rainy autumn season.
Many city's streets, from Porto to Lisbon, its fun to see local sellers roasting hot chestnuts and buy a bunch rapped in a piece of paper. Magusto (making a fire on the ground to roast the chestnuts) is also typical in Sao Martinhos' day among schools or in some villages where this is a local tradition, like Penafiel, up north, Terras Vedras, down south or even in Portimão, Algarve.
The popular fairs, there are parades in the honor of the saint, with wines and the magusto fires by night adding to the experience.