Sea Temperature in Groton in May

Complete information on the sea temperature range in the Atlantic Ocean in Groton in May. Historical daily data. Climate details for May. 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 May

46°F

MINIMUN

55°F

AVERAGE

63°F

MAXIMUM

Historical Data of Water Temperature in May in Groton

Water Temperature Chart for Atlantic Ocean in Groton in May

Sea Temperature Table in Groton in May Over the Past Years

Day	2024	2023	2022	Average
May 1	50°C	46°C	46°C	47°C
May 2	50°C	46°C	48°C	48°C
May 3	50°C	48°C	48°C	48°C
May 4	52°C	48°C	48°C	49°C
May 5	50°C	48°C	50°C	49°C
May 6	50°C	50°C	50°C	50°C
May 7	48°C	50°C	50°C	49°C
May 8	50°C	48°C	50°C	50°C
May 9	50°C	48°C	52°C	50°C
May 10	52°C	48°C	52°C	50°C
May 11	50°C	48°C	52°C	50°C
May 12	52°C	48°C	54°C	51°C
May 13	52°C	48°C	54°C	51°C
May 14	54°C	48°C	54°C	52°C
May 15	52°C	50°C	55°C	52°C
May 16	54°C	52°C	55°C	53°C
May 17	55°C	52°C	55°C	53°C
May 18	55°C	52°C	55°C	53°C
May 19	55°C	54°C	57°C	55°C
May 20	55°C	54°C	57°C	55°C
May 21	57°C	52°C	57°C	55°C
May 22	57°C	54°C	57°C	55°C
May 23	61°C	54°C	57°C	56°C
May 24	59°C	54°C	57°C	56°C
May 25	59°C	54°C	57°C	56°C
May 26	57°C	54°C	57°C	56°C
May 27	59°C	55°C	57°C	57°C
May 28	57°C	57°C	57°C	57°C
May 29	57°C	57°C	57°C	58°C
May 30	55°C	57°C	57°C	57°C

Groton Climate and Swimming Opportunities in May

68°F

Average Day Air Temperature

48°F

Average Night Air Temperature

4 in

Precipitation Amount per Month

11 days

Number of Rainy Days

14 hrs

Daylight
per Day

9 hrs

Sunshine
per Day

9 mph

Average Wind Speed

69%

Average
humidity

Groton lies within the Connecticut in United States. The average daytime temperature in Groton in May is 68°F (20°C), while the nighttime average is 48°F (9°C). There are typically 11 rainy days during the month, with a total precipitation of 3.6 inches (92 mm). The daylight duration in May in Groton is 14 hours, with an average of 9 hours of sunshine per day. The average wind speed in May is 9 mph (15 km/h), and the humidity level is around 69%.

The water temperature in Groton in May ranges from 46°F to 57°F (8°C to 14°C). At the beginning of the month, the average temperature is around 48°F (9°C), shifting to 52°F (11°C) by mid-May and reaching 55°F (13°C) in the last ten days. Overall, the average sea temperature in Groton for May is 52°F (11°C). Ideal conditions for a refreshing swim, though some may still find it a bit cool.

Sea Temperature in May in Nearby Cities

Frequently Asked Questions About Water Temperatures in May in Groton

What is the sea temperature in Groton in May?

The water temperature in the Atlantic Ocean in Groton in May ranges from 46°F to 57°F (8°C to 14°C).

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

The average sea temperature in Groton in May is 52°F (11°C), and the air temperature is 68°F (20°C), so ideal conditions for a refreshing swim, though some may still find it a bit cool.