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USA

Falmouth Weather

Falmouth 14 Days Forecast

30.08
sun

Day

75°F

E 18 mph

Precip.
14%

Night

73°F

E 15 mph

Precip.
37%

31.08
mon

Day

72°F

W 6 mph

Precip.
17%

Night

72°F

N 9 mph

Precip.
23%

01.09
tue

Day

70°F

NW 11 mph

Precip.
66%

Night

66°F

W 16 mph

Precip.
37%

02.09
wed

Day

70°F

W 17 mph

Precip.
17%

Night

72°F

NW 17 mph

Precip.
20%

03.09
thu

Day

70°F

NW 19 mph

Precip.
79%

Night

68°F

SE 12 mph

Precip.
21%

04.09
fri

Day

70°F

SE 17 mph

Precip.
23%

Night

66°F

NW 6 mph

Precip.
15%

05.09
sat

Day

72°F

S 9 mph

Precip.
13%

Night

70°F

N 7 mph

Precip.
16%

06.09
sun

Day

72°F

W 6 mph

Precip.
6%

Night

72°F

N 9 mph

Precip.
19%

07.09
mon

Day

75°F

NE 15 mph

Precip.
47%

Night

64°F

S 14 mph

Precip.
15%

08.09
tue

Day

68°F

NE 5 mph

Precip.
6%

Night

68°F

E 15 mph

Precip.
12%

09.09
wed

Day

72°F

NE 6 mph

Precip.
4%

Night

73°F

N 12 mph

Precip.
30%

10.09
thu

Day

77°F

NE 13 mph

Precip.
14%

Night

70°F

E 11 mph

Precip.
23%

11.09
fri

Day

72°F

E 17 mph

Precip.
9%

Night

64°F

E 15 mph

Precip.
4%

12.09
sat

Day

61°F

E 16 mph

Precip.
11%

Night

57°F

SE 21 mph

Precip.
5%

sea water
temperature

Falmouth

monthly
weather

Falmouth

current
weather

Falmouth

7 days
forecast

Falmouth

January
February
March
April

May
June
July
August

September
October
November
December

Show year:

2026

2025

2024

The average sea water temperature in August of 2026 was 74.3°F. The highest and lowest sea temperatures during the month were 76.1°F and 71.8°F.

Show year:

2025

2024

2023

The average sea water temperature in September of 2025 was 69.6°F. The highest and lowest sea temperatures during the month were 71.1°F and 67.5°F.