In the Highland county of Caithness and the isles of Shetland, the 4th of July was thought to be an important day to observe the weather to ensure safe sailing for the fisher folk. On the Shetland islands this day was called “Martin o’ Balymas Day” but in Caithness, it was “St Bulgan’s Day”. The names being a corruption of “St Martin of Bullion’s Day” in turn a mispronunciation of “Martin le Bouillant” meaning boiling referring to the hot summer feast.
In the Northern Isles, this feast day took over the day traditionally ascribed to St Swithin and was said to mark the beginning of six weeks of dry weather. If the feast was greeted by a gale of wind, however, as is unfortunately all too common, rain would be sure to follow. An anonymous folklorist recorded:
“If the morning be fine, they had no hesitation to go to sea, because they knew the day would be good throughout, but they invariably avoided going the preceding day, lest they be overtaken by bad weather on the 4th or as they call it here St. Martinabilumas Day. By a few it is called St Martins, and the legend regarding the name of the day is that a dutch man, unjustly accused and condemned was put to death on this day and at the time of his execution stated that the day might be particularly distinguished in all time as proof of his innocence. The prayer of the righteous man was heard, and six weeks of dry or raining weather have annually commenced at this date, and he rainy season always begins with a gale of wind.”
St Martin of Bullion’s Day and its derivative is now forgotten and St Swithun has taken over!