Sea Temperature in Belfast in August

© Peter Gage

Complete information on the sea temperature range in the Atlantic Ocean in Belfast in August. Historical daily data. Climate details for August. Tips on swimming conditions and beach relaxation in Belfast. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.

Belfast Climate and Swimming Opportunities in August

Belfast lies within the Maine in United States. The average daytime temperature in Belfast in August is 65°F (18°C), while the nighttime average is 52°F (11°C). There are typically 16 rainy days during the month, with a total precipitation of 3.4 inches (85 mm). The daylight duration in August in Belfast is 15 hours, with an average of 5 hours of sunshine per day. The average wind speed in August is 10 mph (16 km/h), and the humidity level is around 86%.

The water temperature in Belfast in August ranges from 57°F to 61°F (14°C to 16°C). At the beginning of the month, the average temperature is around 59°F (15°C), shifting to 61°F (16°C) by mid-August and reaching 59°F (15°C) in the last ten days. Overall, the average sea temperature in Belfast for August is 59°F (15°C). Ideal conditions for a refreshing swim, though some may still find it a bit cool.

Frequently Asked Questions About Water Temperatures in August in Belfast