World Resorts

USA

Dewey Beach Weather

Dewey Beach 14 Days Forecast

19.03
thu

Day

43°F

NW 6 mph

Precip.
0%

Night

41°F

N 8 mph

Precip.
0%

20.03
fri

Day

52°F

N 12 mph

Precip.
0%

Night

48°F

N 22 mph

Precip.
0%

21.03
sat

Day

61°F

SE 19 mph

Precip.
0%

Night

46°F

SW 7 mph

Precip.
0%

22.03
sun

Day

54°F

N 7 mph

Precip.
0%

Night

50°F

N 16 mph

Precip.
0%

23.03
mon

Day

50°F

NE 16 mph

Precip.
100%

Night

39°F

S 17 mph

Precip.
56%

24.03
tue

Day

36°F

NW 13 mph

Precip.
0%

Night

36°F

NW 8 mph

Precip.
0%

25.03
wed

Day

45°F

NE 9 mph

Precip.
0%

Night

43°F

N 9 mph

Precip.
0%

26.03
thu

Day

50°F

N 16 mph

Precip.
0%

Night

54°F

N 25 mph

Precip.
0%

27.03
fri

Day

61°F

NE 23 mph

Precip.
0%

Night

36°F

S 25 mph

Precip.
100%

28.03
sat

Day

25°F

SE 25 mph

Precip.
100%

Night

23°F

SE 25 mph

Precip.
0%

29.03
sun

Day

37°F

SE 19 mph

Precip.
28%

Night

27°F

S 22 mph

Precip.
49%

30.03
mon

Day

25°F

SE 20 mph

Precip.
25%

Night

27°F

NE 15 mph

Precip.
59%

31.03
tue

Day

28°F

SE 14 mph

Precip.
0%

Night

30°F

SE 7 mph

Precip.
0%

sea water
temperature

Dewey Beach

monthly
weather

Dewey Beach

current
weather

Dewey Beach

7 days
forecast

Dewey Beach

January
February
March
April

May
June
July
August

September
October
November
December

Show year:

2026

2025

2024

The average sea water temperature in March of 2026 was 39.1°F. The highest and lowest sea temperatures during the month were 42.3°F and 35.6°F.

Show year:

2025

2024

2023

The average sea water temperature in April of 2025 was 51.2°F. The highest and lowest sea temperatures during the month were 56.3°F and 47.8°F.