World Resorts USA Falmouth Weather

Falmouth sea water temperature

Current sea water temperature:
+36.1°F
Minimum sea water temperature in January: 44.2°F
Maximum sea water temperature in January: 33.1°F
Average sea water temperature in January: 39.0°F

Sea water temperature for the last 10 days:

January 13 36.1°F January 8 35.4°F
January 12 36.1°F January 7 37.4°F
January 11 35.8°F January 6 37.6°F
January 10 36.1°F January 5 37.4°F
January 9 35.1°F January 4 37.2°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.

Best time for vacation in Falmouth

Sunniest months:
November 15 days
October 14 days
September 13 days
Warmest months:
July 74.4 °F
August 73.8 °F
September 69.3 °F
Warmest sea temp:
August 74.0 °F
July 72.8 °F
September 70.4 °F
Coldest months:
February 36.8 °F
January 36.8 °F
December 42.1 °F
Rainiest months:
January 3 days
October 3 days
July 2 days
Windiest months:
November 14.0 mph
March 13.9 mph
December 13.8 mph

Falmouth on a weather map

Falmouth
+45°F
NE 15 mph
Feels like: +39°F
Precip.: 0%
Places in USA:
Name
°F
+54°F
+72°F
+72°F
+70°F
+77°F
+73°F
+73°F
+70°F
+50°F
+77°F
+55°F
+64°F
+64°F
+64°F
+52°F
24 Hours Forecast
Falmouth
Local time: 15:36
January 13, tuesday
1800
41°F
NE
16 mph
2100
39°F
NE
15 mph
January 14, wednesday
0000
41°F
NE
22 mph
0300
43°F
NE
22 mph
0600
43°F
NE
21 mph
0900
43°F
NE
16 mph
1200
43°F
NE
14 mph
1500
43°F
NE
13 mph
Units of measurement: °C / °F