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Sea Temperature in Old Greenwich in September
Complete information on the sea temperature range in the Atlantic Ocean in Old Greenwich in September. Historical daily data. Climate details for September. Tips on swimming conditions and beach relaxation in Old Greenwich. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.
Water Temperature Range in Old Greenwich in September
64°F
MINIMUN
71°F
AVERAGE
77°F
MAXIMUM
Historical Data of Water Temperature in September in Old Greenwich
Water Temperature Chart for Atlantic Ocean in Old Greenwich in September
Sea Temperature Table in Old Greenwich in September Over the Past Years
| Day | 2024 | 2023 | 2022 | Average |
|---|---|---|---|---|
| Sep 1 | 75°C | 75°C | 70°C | 73°C |
| Sep 2 | 75°C | 73°C | 70°C | 73°C |
| Sep 3 | 73°C | 73°C | 70°C | 73°C |
| Sep 4 | 73°C | 75°C | 68°C | 72°C |
| Sep 5 | 73°C | 73°C | 68°C | 71°C |
| Sep 6 | 75°C | 73°C | 70°C | 72°C |
| Sep 7 | 75°C | 75°C | 70°C | 72°C |
| Sep 8 | 75°C | 73°C | 68°C | 72°C |
| Sep 9 | 75°C | 73°C | 68°C | 72°C |
| Sep 10 | 75°C | 75°C | 68°C | 72°C |
| Sep 11 | 73°C | 73°C | 66°C | 70°C |
| Sep 12 | 73°C | 73°C | 66°C | 71°C |
| Sep 13 | 73°C | 73°C | 68°C | 71°C |
| Sep 14 | 75°C | 73°C | 68°C | 72°C |
| Sep 15 | 75°C | 72°C | 70°C | 72°C |
| Sep 16 | 75°C | 72°C | 70°C | 72°C |
| Sep 17 | 75°C | 72°C | 70°C | 72°C |
| Sep 18 | 73°C | 72°C | 70°C | 71°C |
| Sep 19 | 75°C | 70°C | 70°C | 71°C |
| Sep 20 | 73°C | 70°C | 68°C | 70°C |
| Sep 21 | 75°C | 68°C | 70°C | 71°C |
| Sep 22 | 75°C | 68°C | 68°C | 70°C |
| Sep 23 | 75°C | 68°C | 68°C | 70°C |
| Sep 24 | 75°C | 66°C | 68°C | 70°C |
| Sep 25 | 75°C | 68°C | 70°C | 70°C |
| Sep 26 | 73°C | 68°C | 70°C | 70°C |
| Sep 27 | 75°C | 68°C | 70°C | 70°C |
| Sep 28 | 75°C | 68°C | 68°C | 70°C |
| Sep 29 | 73°C | 68°C | 68°C | 69°C |
Old Greenwich Climate and Swimming Opportunities in September
75°F
Average Day Air Temperature
59°F
Average Night Air Temperature
4 in
Precipitation Amount per Month
9 days
Number of Rainy Days
12 hrs
Daylight
per Day
7 hrs
Sunshine
per Day
8 mph
Average Wind Speed
69%
Average
humidity
Old Greenwich lies within the Connecticut in United States. The average daytime temperature in Old Greenwich 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 Old Greenwich 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 Old Greenwich in September ranges from 68°F to 73°F (20°C to 23°C). At the beginning of the month, the average temperature is around 72°F (22°C), shifting to 72°F (22°C) by mid-September and reaching 70°F (21°C) in the last ten days. Overall, the average sea temperature in Old Greenwich for September is 72°F (22°C). Optimal swimming conditions. The water is warm, and the air is comfortable for drying off and sunbathing.
Sea Temperature in September in Nearby Cities
Frequently Asked Questions About Water Temperatures in September in Old Greenwich
What is the sea temperature in Old Greenwich in September?
The water temperature in the Atlantic Ocean in Old Greenwich in September ranges from 68°F to 73°F (20°C to 23°C).
Is it possible to swim in the Atlantic Ocean in Old Greenwich in September?
The average sea temperature in Old Greenwich in September is 72°F (22°C), and the air temperature is 75°F (24°C), so optimal swimming conditions. The water is warm, and the air is comfortable for drying off and sunbathing.