"Kippers for breakfast, Aunt Helga? Is it St Swithin's Day already? Tis replied Aunt Helga" (TheSimpsons)
St Swithun's /St Swithin's Day. Myth & superstition say that if it rains on St Swithin's Day, it will rain for 40 days & nights. Obviously nonsense. We now have the Science of Meteorology, weather apps and long range forecasts that make this kind of 'prophecy talk' archaic and laughable. Another modern day tradition based on outdated myths & the ramblings of our poorly educated, religiously brainwashed, technologically backward ancestors.
Swithun was Bishop of Winchester and it is claimed that he did many 'miracles' ,mostly once he was dead. (Very convenient) He didn't do anything noteworthy during his lifetime and didn't actually do any 'miracles' because actual 'miracles' are not a real thing. Especially 'miracles' with eggs. He was dismembered and spread around churches by and for intellectually challenged individuals and cults. Myths & superstition have no place in modern society. Aunt Helga wouldn't be pleased.