30.08
sun
sun
Day
75°F
E 18 mph
Precip.
14%
14%
Night
73°F
E 15 mph
Precip.
37%
37%
31.08
mon
mon
Day
72°F
W 6 mph
Precip.
17%
17%
Night
72°F
N 9 mph
Precip.
23%
23%
01.09
tue
tue
Day
70°F
NW 11 mph
Precip.
66%
66%
Night
66°F
W 16 mph
Precip.
37%
37%
02.09
wed
wed
Day
70°F
W 17 mph
Precip.
17%
17%
Night
72°F
NW 17 mph
Precip.
20%
20%
03.09
thu
thu
Day
70°F
NW 19 mph
Precip.
79%
79%
Night
68°F
SE 12 mph
Precip.
21%
21%
04.09
fri
fri
Day
70°F
SE 17 mph
Precip.
23%
23%
Night
66°F
NW 6 mph
Precip.
15%
15%
05.09
sat
sat
Day
72°F
S 9 mph
Precip.
13%
13%
Night
70°F
N 7 mph
Precip.
16%
16%
sea water
temperature
temperature
| Falmouth |
monthly
weather
weather
| Falmouth |
current
weather
weather
| Falmouth |
14 days
forecast
forecast
| Falmouth |
Sea water temperature in August, °F
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.
Sea water temperature in September, °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.
Air temperature in Falmouth, °F
Precipitation total in Falmouth, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Falmouth
Falmouth on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Falmouth
Local time: 04:06
August 30, sunday
0600
63°F
E
12 mph
12 mph
0900
72°F
E
15 mph
15 mph
1200
75°F
E
18 mph
18 mph
1500
75°F
NE
19 mph
19 mph
1800
73°F
NE
20 mph
20 mph
2100
72°F
E
19 mph
19 mph
August 31, monday
0000
73°F
E
15 mph
15 mph
0300
70°F
SE
13 mph
13 mph
