Average sea water temperature in August:
+71.9°F
| Minimum sea water temperature in August: | 77.0°F |
| Maximum sea water temperature in August: | 67.3°F |
Daily sea water temperature in August, °F
Show year:
2026
2025
2024
The average sea water temperature in August of 2026 was 70.9°F. The highest and lowest sea temperatures during the month were 72.3°F and 69.1°F.
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| Martha's Vineyard |
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| Martha's Vineyard |
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| Martha's Vineyard |
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| Martha's Vineyard |
Monthly sea water temperature in Martha's Vineyard, °F
Which USA resorts have warmest sea in August?
| Place name | August 2026 | August 2025 |
|---|---|---|
| Key West | 88.2°F | 88.8°F |
| New Orleans | 87.8°F | 87.4°F |
| Houston | 87.7°F | 87.8°F |
| Naples | 87.4°F | 88.7°F |
| St. George Island | 86.6°F | 86.5°F |
| Miami | 86.5°F | 88.1°F |
| Miami Beach | 86.4°F | 87.9°F |
| Sarasota | 86.2°F | 88.6°F |
| Santa Rosa Beach | 86.2°F | 85.9°F |
| Panama City Beach | 86.1°F | 86.2°F |
| West Palm Beach | 86.1°F | 86.8°F |
| Pensacola Beach | 86.1°F | 86.6°F |
| Clearwater Beach | 86.0°F | 88.5°F |
| Destin | 86.0°F | 86.0°F |
| Tampa | 85.9°F | 88.6°F |
| Hilton Head Island | 85.9°F | 85.0°F |
| Edisto Beach | 85.7°F | 84.3°F |
| Tybee Island | 85.7°F | 84.5°F |
| Fort Walton Beach | 85.7°F | 86.0°F |
| Charleston (SC) | 85.3°F | 84.1°F |
Best time for vacation in Martha's Vineyard
Martha's Vineyard on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Martha's Vineyard
Local time: 21:35
August 17, monday
0000
28°F
N
4 mph
4 mph
0300
28°F
W
2 mph
2 mph
0600
28°F
S
3 mph
3 mph
0900
30°F
S
7 mph
7 mph
1200
36°F
S
12 mph
12 mph
1500
39°F
SE
11 mph
11 mph
1800
34°F
S
7 mph
7 mph
2100
32°F
S
6 mph
6 mph
