Sea Temperature in Groton in October

Complete information on the sea temperature range in the Atlantic Ocean in Groton in October. Historical daily data. Climate details for October. Tips on swimming conditions and beach relaxation in Groton. 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 Groton in October

13°C

MINIMUN

16.5°C

AVERAGE

20°C

MAXIMUM

Historical Data of Water Temperature in October in Groton

Water Temperature Chart for Atlantic Ocean in Groton in October

Sea Temperature Table in Groton in October Over the Past Years

Day	2024	2023	2022	Average
Oct 1	20°C	19°C	19°C	19.3°C
Oct 2	20°C	19°C	19°C	19.3°C
Oct 3	20°C	19°C	19°C	19.0°C
Oct 4	19°C	19°C	18°C	18.5°C
Oct 5	19°C	19°C	18°C	18.8°C
Oct 6	20°C	19°C	19°C	19.3°C
Oct 7	20°C	19°C	19°C	19.3°C
Oct 8	19°C	19°C	19°C	18.8°C
Oct 9	20°C	18°C	20°C	19.0°C
Oct 10	19°C	18°C	19°C	18.5°C
Oct 11	20°C	18°C	20°C	19.0°C
Oct 12	19°C	17°C	20°C	18.3°C
Oct 13	19°C	18°C	18°C	18.0°C
Oct 14	20°C	17°C	18°C	18.3°C
Oct 15	19°C	17°C	18°C	18.0°C
Oct 16	20°C	17°C	17°C	17.8°C
Oct 17	19°C	18°C	17°C	17.8°C
Oct 18	19°C	17°C	18°C	17.8°C
Oct 19	18°C	16°C	18°C	16.8°C
Oct 20	18°C	17°C	18°C	17.0°C
Oct 21	19°C	17°C	17°C	17.3°C
Oct 22	19°C	17°C	17°C	17.3°C
Oct 23	19°C	17°C	18°C	17.5°C
Oct 24	19°C	17°C	18°C	17.3°C
Oct 25	18°C	17°C	18°C	17.3°C
Oct 26	18°C	17°C	18°C	17.3°C
Oct 27	16°C	16°C	18°C	16.8°C
Oct 28	17°C	17°C	18°C	17.0°C
Oct 29	16°C	16°C	18°C	16.5°C
Oct 30	17°C	16°C	17°C	16.3°C

Groton Climate and Swimming Opportunities in October

18°C

Average Day Air Temperature

8°C

Average Night Air Temperature

99 mm

Precipitation Amount per Month

9 days

Number of Rainy Days

11 hrs

Daylight
per Day

7 hrs

Sunshine
per Day

17 km/h

Average Wind Speed

71%

Average
humidity

Groton lies within the Connecticut in United States. The average daytime temperature in Groton in October is 64°F (18°C), while the nighttime average is 46°F (8°C). There are typically nine rainy days during the month, with a total precipitation of 3.9 inches (99 mm). The daylight duration in October in Groton is 11 hours, with an average of 7 hours of sunshine per day. The average wind speed in October is 11 mph (17 km/h), and the humidity level is around 71%.

The water temperature in Groton in October ranges from 61°F to 66°F (16°C to 19°C). At the beginning of the month, the average temperature is around 66°F (19°C), shifting to 64°F (18°C) by mid-October and reaching 63°F (17°C) in the last ten days. Overall, the average sea temperature in Groton for October is 64°F (18°C). Ideal conditions for a refreshing swim, though some may still find it a bit cool.

Sea Temperature in October in Nearby Cities

Frequently Asked Questions About Water Temperatures in October in Groton

What is the sea temperature in Groton in October?

The water temperature in the Atlantic Ocean in Groton in October ranges from 61°F to 66°F (16°C to 19°C).

Is it possible to swim in the Atlantic Ocean in Groton in October?

The average sea temperature in Groton in October is 64°F (18°C), and the air temperature is 64°F (18°C), so ideal conditions for a refreshing swim, though some may still find it a bit cool.