Sea Temperature in St Mary's Island in July

© Thomas Cogley

Complete information on the sea temperature range in the North Sea in St Mary's Island in July. Historical daily data. Climate details for July. Tips on swimming conditions and beach relaxation in St Mary's Island. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.

St Mary's Island Climate and Swimming Opportunities in July

St Mary's Island lies within the England in United Kingdom. The average daytime temperature in St Mary's Island in July is 22°C (71°F), while the nighttime average is 13°C (56°F). There are typically 10 rainy days during the month, with a total precipitation of 47 mm (1.8 inches). The daylight duration in July in St Mary's Island is 16 hours, with an average of 6 hours of sunshine per day. The average wind speed in July is 14 km/h (9 mph), and the humidity level is around 80%.

The water temperature in St Mary's Island in July ranges from 15°C to 17°C (59°F to 63°F). At the beginning of the month, the average temperature is around 16°C (61°F), shifting to 17°C (63°F) by mid-July and reaching 17°C (63°F) in the last ten days. Overall, the average sea temperature in St Mary's Island for July is 17°C (63°F). Very comfortable swimming conditions. The water is fresh but not too cold, and the air temperature is pleasant.

Frequently Asked Questions About Water Temperatures in July in St Mary's Island