Sea Temperature in Old Greenwich in May

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

8°C

MINIMUN

13°C

AVERAGE

18°C

MAXIMUM

Historical Data of Water Temperature in May in Old Greenwich

Water Temperature Chart for Atlantic Ocean in Old Greenwich in May

Sea Temperature Table in Old Greenwich in May Over the Past Years

Day	2024	2023	2022	Average
May 1	11°C	9°C	8°C	9.8°C
May 2	12°C	9°C	9°C	10.3°C
May 3	12°C	9°C	9°C	10.3°C
May 4	11°C	9°C	9°C	10.0°C
May 5	11°C	9°C	10°C	10.3°C
May 6	12°C	10°C	10°C	10.8°C
May 7	12°C	9°C	10°C	10.8°C
May 8	12°C	9°C	10°C	10.8°C
May 9	12°C	9°C	11°C	11.3°C
May 10	12°C	9°C	11°C	11.0°C
May 11	12°C	9°C	11°C	11.0°C
May 12	12°C	9°C	12°C	11.3°C
May 13	12°C	10°C	12°C	11.5°C
May 14	13°C	10°C	12°C	11.8°C
May 15	13°C	10°C	13°C	11.8°C
May 16	13°C	10°C	13°C	12.0°C
May 17	14°C	11°C	13°C	12.5°C
May 18	14°C	11°C	13°C	12.5°C
May 19	15°C	11°C	14°C	13.0°C
May 20	15°C	11°C	13°C	12.8°C
May 21	15°C	11°C	13°C	13.3°C
May 22	15°C	11°C	13°C	13.3°C
May 23	17°C	11°C	13°C	14.0°C
May 24	17°C	11°C	13°C	14.0°C
May 25	17°C	11°C	13°C	14.0°C
May 26	17°C	12°C	13°C	14.5°C
May 27	17°C	12°C	13°C	14.5°C
May 28	16°C	13°C	13°C	14.8°C
May 29	16°C	13°C	13°C	14.5°C
May 30	15°C	13°C	13°C	14.3°C

Old Greenwich Climate and Swimming Opportunities in May

20°C

Average Day Air Temperature

11°C

Average Night Air Temperature

103 mm

Precipitation Amount per Month

11 days

Number of Rainy Days

14 hrs

Daylight
per Day

8 hrs

Sunshine
per Day

14 km/h

Average Wind Speed

65%

Average
humidity

Old Greenwich lies within the Connecticut in United States. The average daytime temperature in Old Greenwich in May is 68°F (20°C), while the nighttime average is 52°F (11°C). There are typically 11 rainy days during the month, with a total precipitation of 4.1 inches (103 mm). The daylight duration in May in Old Greenwich is 14 hours, with an average of 8 hours of sunshine per day. The average wind speed in May is 9 mph (14 km/h), and the humidity level is around 65%.

The water temperature in Old Greenwich in May ranges from 48°F to 57°F (9°C to 14°C). At the beginning of the month, the average temperature is around 50°F (10°C), shifting to 54°F (12°C) by mid-May and reaching 57°F (14°C) in the last ten days. Overall, the average sea temperature in Old Greenwich for May is 54°F (12°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 Old Greenwich

What is the sea temperature in Old Greenwich in May?

The water temperature in the Atlantic Ocean in Old Greenwich in May ranges from 48°F to 57°F (9°C to 14°C).

Is it possible to swim in the Atlantic Ocean in Old Greenwich in May?

The average sea temperature in Old Greenwich in May is 54°F (12°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.