Sea Temperature in Darien in September

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

Darien Climate and Swimming Opportunities in September

Darien lies within the Connecticut in United States. The average daytime temperature in Darien in September is 75°F (24°C), while the nighttime average is 59°F (15°C). There are typically nine rainy days during the month, with a total precipitation of 4.0 inches (101 mm). The daylight duration in September in Darien is 12 hours, with an average of 7 hours of sunshine per day. The average wind speed in September is 8 mph (13 km/h), and the humidity level is around 69%.

The water temperature in Darien in September ranges from 68°F to 72°F (20°C to 22°C). At the beginning of the month, the average temperature is around 72°F (22°C), shifting to 70°F (21°C) by mid-September and reaching 70°F (21°C) in the last ten days. Overall, the average sea temperature in Darien for September is 70°F (21°C). Optimal swimming conditions. The water is warm, and the air is comfortable for drying off and sunbathing.

Frequently Asked Questions About Water Temperatures in September in Darien