Measurements:
°C
°F
Falmouth
72°F
NE 14 mph
Feels like: 72°F
Precip: 1%
World Resorts USA Falmouth Weather

Falmouth Sea Water Temperature

Current Sea Water Temperature:
+62.4°F
Maximum Sea Water Temperature in June: 75.4°F
Minimum Sea Water Temperature in June: 58.6°F
Average water temperature in June: 66.6°F

Sea Water Temperature for the Last 10 Days:

June 04 62.4°F May 29 61.8°F
June 03 60.6°F May 28 61.4°F
June 01 60.4°F May 27 60.6°F
May 31 60.6°F May 26 58.6°F
May 30 61.2°F May 25 59.0°F

When is the Warmest Sea for Falmouth?

According to our data for the last three years for Falmouth the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Falmouth was 74.8°F. The maximum and minimum values were 72.8°F and 77.8°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Falmouth was 74.5°F. The maximum and minimum values were 69.8°F and 77.4°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Falmouth was 71.8°F. The maximum and minimum values were 69.4°F and 73.4°F respectively.

Best Time to Visit Falmouth
The most sunny months:
November 15 days
October 14 days
September 13 days
The most warm months:
July 77.1 °F
August 76.5 °F
September 71.5 °F
Warmest sea temperature:
August 76.7 °F
July 75.3 °F
September 72.7 °F
The most cold months:
February 34.8 °F
January 34.9 °F
December 41.2 °F
The most rainy months:
January 3 days
October 3 days
July 2 days
The most windy months:
November 14 mph
January 14 mph
December 14 mph

Falmouth on the Weather Map

USA Resorts:
NAME
Boston +90
Chicago +76
Hawaii +78
Honolulu +78
Houston +86
Las Vegas +92
Los Angeles +70
Maui +70
Miami +82
Miami Beach +84
New York +94
San Diego +64
San Francisco +60
Sarasota +94
Tampa +92
24 Hours Weather Forecast
Falmouth
Local time: 12:54
04 jun, thursday
1500 68°F
NE
17 mph
1800 66°F
NE
16 mph
2100 62°F
NE
14 mph
05 jun, friday
0000 62°F
NE
15 mph
0300 60°F
NE
14 mph
0600 62°F
E
11 mph
0900 66°F
E
9 mph
1200 70°F
E
9 mph