Seathwaite is the wettest inhabited place in the United Kingdom and receives around of rain per year. In September 1966 five inches of rain fell on Seathwaite and the surrounding fells in an hour, the resulting flood severely damaging the nearby Stockley Bridge, which lies 1200 yards south of the hamlet. Stockley Bridge is an ancient packhorse bridge on the old route between Borrowdale and the Cumbrian coast. The bridge was widened in 1887 and had to be repaired after the 1966 storm.