Current sea water temperature:
+39.6°F
| Minimum sea water temperature in December: | 52.0°F |
| Maximum sea water temperature in December: | 38.8°F |
| Average sea water temperature in December: | 44.9°F |
| more information | |
14 days
forecast
forecast
| Falmouth |
monthly
weather
weather
| Falmouth |
Sea water temperature for the last 10 days:
| December 27 | 39.6°F | December 22 | 40.8°F |
| December 26 | 39.2°F | December 21 | 40.8°F |
| December 25 | 39.4°F | December 20 | 40.6°F |
| December 24 | 39.0°F | December 19 | 40.1°F |
| December 23 | 40.6°F | December 18 | 38.8°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:
2025
2024
2023
The average sea water temperature in August of 2025 was 72.4°F. The highest and lowest sea temperatures during the month were 75.0°F and 70.5°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 72.1°F. The highest and lowest sea temperatures during the month were 74.7°F and 67.8°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.
current
weather
weather
| Falmouth |
weather in
January
January
| Falmouth |
Best time for vacation in Falmouth
Falmouth on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Falmouth
Local time: 00:57
December 28, sunday
0300
21°F
SE
7 mph
7 mph
0600
19°F
SE
10 mph
10 mph
0900
25°F
E
9 mph
9 mph
1200
34°F
E
9 mph
9 mph
1500
37°F
NE
11 mph
11 mph
1800
37°F
NE
13 mph
13 mph
2100
37°F
NE
13 mph
13 mph
December 29, monday
0000
39°F
NE
11 mph
11 mph
