Current sea water temperature:
+74.8°F
| Minimum sea water temperature in August: | 77.7°F |
| Maximum sea water temperature in August: | 70.5°F |
| Average sea water temperature in August: | 74.1°F |
| more information | |
14 days
forecast
forecast
| Falmouth |
monthly
weather
weather
| Falmouth |
Sea water temperature for the last 10 days:
| August 30 | 74.8°F | August 25 | 74.1°F |
| August 29 | 74.1°F | August 24 | 72.3°F |
| August 28 | 74.3°F | August 23 | 72.3°F |
| August 27 | 73.8°F | August 22 | 73.0°F |
| August 26 | 74.1°F | August 21 | 75.0°F |
Monthly sea water temperature, °F
When is the warmest sea in Falmouth?
Based on the data about daily sea water temperature for the last three years the warmest sea in Falmouth was noticed in August, July and September.
Monthly Sea Temperatures in Falmouth, °F
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 July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 72.5°F. The highest and lowest sea temperatures during the month were 73.4°F and 70.7°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.
current
weather
weather
| Falmouth |
weather in
September
September
| Falmouth |
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
