Sea Temperature in Dewey Beach in May

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

46°F

MINIMUN

56°F

AVERAGE

66°F

MAXIMUM

Historical Data of Water Temperature in May in Dewey Beach

Water Temperature Chart for Atlantic Ocean in Dewey Beach in May

Sea Temperature Table in Dewey Beach in May Over the Past Years

Day	2024	2023	2022	Average
May 1	55°C	52°C	48°C	53°C
May 2	55°C	52°C	48°C	53°C
May 3	55°C	54°C	48°C	54°C
May 4	57°C	54°C	50°C	54°C
May 5	59°C	54°C	50°C	55°C
May 6	57°C	55°C	50°C	55°C
May 7	57°C	55°C	52°C	55°C
May 8	57°C	55°C	52°C	55°C
May 9	57°C	55°C	52°C	55°C
May 10	57°C	55°C	54°C	56°C
May 11	57°C	55°C	54°C	56°C
May 12	57°C	57°C	54°C	56°C
May 13	59°C	57°C	55°C	57°C
May 14	59°C	57°C	55°C	57°C
May 15	61°C	57°C	55°C	58°C
May 16	59°C	59°C	57°C	58°C
May 17	63°C	59°C	57°C	59°C
May 18	63°C	59°C	57°C	59°C
May 19	61°C	59°C	59°C	59°C
May 20	63°C	57°C	61°C	60°C
May 21	63°C	59°C	61°C	60°C
May 22	64°C	59°C	61°C	61°C
May 23	66°C	63°C	59°C	62°C
May 24	64°C	63°C	59°C	62°C
May 25	64°C	63°C	59°C	62°C
May 26	66°C	64°C	59°C	63°C
May 27	64°C	64°C	59°C	63°C
May 28	64°C	63°C	61°C	63°C
May 29	64°C	64°C	61°C	63°C
May 30	63°C	64°C	61°C	63°C

Dewey Beach Climate and Swimming Opportunities in May

72°F

Average Day Air Temperature

52°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

72%

Average
humidity

Dewey Beach lies within the Delaware in United States. The average daytime temperature in Dewey Beach in May is 71°F (22°C), while the nighttime average is 52°F (11°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 Dewey Beach 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 72%.

The water temperature in Dewey Beach in May ranges from 52°F to 63°F (11°C to 17°C). At the beginning of the month, the average temperature is around 54°F (12°C), shifting to 57°F (14°C) by mid-May and reaching 63°F (17°C) in the last ten days. Overall, the average sea temperature in Dewey Beach for May is 57°F (14°C). The contrast between cool water and warm air makes for a refreshing swim. A great choice for those who enjoy invigorating dips.

Sea Temperature in May in Nearby Cities

Frequently Asked Questions About Water Temperatures in May in Dewey Beach

What is the sea temperature in Dewey Beach in May?

The water temperature in the Atlantic Ocean in Dewey Beach in May ranges from 52°F to 63°F (11°C to 17°C).

Is it possible to swim in the Atlantic Ocean in Dewey Beach in May?

The average sea temperature in Dewey Beach in May is 57°F (14°C), and the air temperature is 71°F (22°C), so the contrast between cool water and warm air makes for a refreshing swim. A great choice for those who enjoy invigorating dips.