World Resorts USA Martha's Vineyard Weather

Martha's Vineyard Sea Temperature in September

Average sea water temperature in September:
+69.0°F
Minimum sea water temperature in September: 74.3°F
Maximum sea water temperature in September: 62.2°F

Daily sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 67.9°F. The highest and lowest sea temperatures during the month were 69.8°F and 66.6°F.

Monthly sea water temperature in Martha's Vineyard, °F

Which USA resorts have warmest sea in September?

Place name September 2025 September 2024
Key West 86.9°F 87.4°F
Islamorada 86.7°F 87.3°F
Key Largo 86.6°F 87.1°F
Fort Lauderdale 86.4°F 86.4°F
West Palm Beach 86.2°F 86.4°F
Everglades 86.2°F 87.0°F
Miami Beach 86.1°F 86.3°F
Naples 86.1°F 87.2°F
Marco Island 86.0°F 87.2°F
South Padre Island 86.0°F 85.8°F
Corpus Christi 85.8°F 84.7°F
Miami 85.8°F 86.0°F
Sanibel Island 85.7°F 87.0°F
Galveston Island 85.5°F 84.4°F
Galveston 85.5°F 83.7°F
Houston 84.9°F 83.4°F
Siesta Key 84.9°F 86.8°F
Sarasota 84.8°F 86.7°F
Cocoa Beach 84.6°F 85.2°F
Tampa 84.3°F 86.0°F

Best time for vacation in Martha's Vineyard

Sunniest months:
November 15 days
October 14 days
September 13 days
Warmest months:
July 74.0 °F
August 73.4 °F
September 69.3 °F
Warmest sea temp:
August 71.9 °F
July 70.5 °F
September 69.0 °F
Coldest months:
January 37.0 °F
February 37.1 °F
March 42.2 °F
Rainiest months:
January 3 days
April 3 days
October 3 days
Windiest months:
December 14.5 mph
January 14.5 mph
November 14.4 mph

Martha's Vineyard on a weather map

Martha's Vineyard
+43°F
NW 13 mph
Feels like: +37°F
Precip.: 100%
Places in USA:
Name
°F
+46°F
+75°F
+75°F
+59°F
+70°F
+77°F
+77°F
+70°F
+41°F
+70°F
+55°F
+75°F
+77°F
+55°F
+36°F
24 Hours Forecast
Martha's Vineyard
Local time: 18:59
January 10, saturday
2100
37°F
NW
17 mph
January 11, sunday
0000
37°F
W
13 mph
0300
37°F
S
8 mph
0600
39°F
S
7 mph
0900
39°F
S
3 mph
1200
37°F
E
6 mph
1500
39°F
NE
11 mph
1800
37°F
E
15 mph
Units of measurement: °C / °F