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USA

Martha's Vineyard Weather

Martha's Vineyard 14 Days Forecast

21.07
tue

Day

79°F

NW 16 mph

Precip.
7%

Night

72°F

NE 32 mph

Precip.
92%

22.07
wed

Day

73°F

NE 19 mph

Precip.
37%

Night

70°F

NE 15 mph

Precip.
47%

23.07
thu

Day

72°F

E 12 mph

Precip.
2%

Night

68°F

SW 9 mph

Precip.
5%

24.07
fri

Day

70°F

N 3 mph

Precip.
3%

Night

68°F

NW 9 mph

Precip.
15%

25.07
sat

Day

70°F

W 14 mph

Precip.
3%

Night

68°F

N 6 mph

Precip.
4%

26.07
sun

Day

72°F

W 6 mph

Precip.
3%

Night

68°F

NE 7 mph

Precip.
4%

27.07
mon

Day

73°F

NE 18 mph

Precip.
9%

Night

72°F

N 17 mph

Precip.
67%

28.07
tue

Day

73°F

E 16 mph

Precip.
15%

Night

72°F

N 6 mph

Precip.
16%

29.07
wed

Day

72°F

SW 14 mph

Precip.
13%

Night

70°F

W 6 mph

Precip.
9%

30.07
thu

Day

70°F

W 13 mph

Precip.
7%

Night

70°F

W 8 mph

Precip.
10%

31.07
fri

Day

72°F

W 9 mph

Precip.
8%

Night

70°F

N 7 mph

Precip.
17%

01.08
sat

Day

75°F

NE 19 mph

Precip.
11%

Night

73°F

NE 16 mph

Precip.
23%

02.08
sun

Day

75°F

E 11 mph

Precip.
5%

Night

73°F

E 12 mph

Precip.
8%

03.08
mon

Day

75°F

NE 11 mph

Precip.
17%

Night

73°F

NE 11 mph

Precip.
12%

sea water
temperature

Martha's Vineyard

monthly
weather

Martha's Vineyard

current
weather

Martha's Vineyard

7 days
forecast

Martha's Vineyard

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 68.4°F. The highest and lowest sea temperatures during the month were 71.4°F and 66.4°F.

Show year:

2025

2024

2023

The average sea water temperature in August of 2025 was 69.0°F. The highest and lowest sea temperatures during the month were 72.1°F and 67.3°F.