World Resorts

USA

Dewey Beach Weather

Dewey Beach 14 Days Forecast

21.07
tue

Day

84°F

N 14 mph

Precip.
7%

Night

75°F

NE 15 mph

Precip.
46%

22.07
wed

Day

79°F

NE 17 mph

Precip.
70%

Night

73°F

SE 17 mph

Precip.
9%

23.07
thu

Day

72°F

S 14 mph

Precip.
2%

Night

72°F

S 3 mph

Precip.
3%

24.07
fri

Day

75°F

SW 6 mph

Precip.
2%

Night

72°F

W 11 mph

Precip.
8%

25.07
sat

Day

73°F

SW 13 mph

Precip.
17%

Night

72°F

SW 8 mph

Precip.
9%

26.07
sun

Day

75°F

SW 9 mph

Precip.
3%

Night

72°F

NE 11 mph

Precip.
7%

27.07
mon

Day

81°F

NE 14 mph

Precip.
4%

Night

73°F

E 17 mph

Precip.
19%

28.07
tue

Day

81°F

E 6 mph

Precip.
6%

Night

77°F

S 9 mph

Precip.
7%

29.07
wed

Day

77°F

NE 9 mph

Precip.
3%

Night

73°F

N 5 mph

Precip.
10%

30.07
thu

Day

79°F

W 7 mph

Precip.
4%

Night

73°F

W 7 mph

Precip.
14%

31.07
fri

Day

77°F

W 9 mph

Precip.
9%

Night

75°F

N 14 mph

Precip.
9%

01.08
sat

Day

84°F

N 16 mph

Precip.
5%

Night

79°F

NE 14 mph

Precip.
62%

02.08
sun

Day

82°F

NE 4 mph

Precip.
23%

Night

79°F

N 7 mph

Precip.
13%

03.08
mon

Day

86°F

NE 7 mph

Precip.
5%

Night

81°F

NE 12 mph

Precip.
36%

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 July of 2026 was 76.7°F. The highest and lowest sea temperatures during the month were 80.6°F and 72.7°F.

Show year:

2025

2024

2023

The average sea water temperature in August of 2025 was 76.4°F. The highest and lowest sea temperatures during the month were 82.2°F and 74.1°F.