St Swithin's day falls on a Sunday this year - 15th July
Going off the weather we have been having, I thought St Swithin's day HAD ALREADY HAPPENED.
St Swithin's Day is the day that people traditionally keep an eye on the weather. This custom arose as, according to old folklore dating back to the Elizabethan times, whatever the weather is like on St Swithin's Day it will continue to be so for the next forty days.
St Swithin's Day Poem
St Swithin's day if thou dost rain
For forty days it will remain
St Swithin's day if thou be fair
For forty days twill rain nae mair.
So if it rains on St Swithin's Day, you can expect to have rain for the next forty days. If it's fine and sunny this is what you can expect instead.