Current sea water temperature:
+71.2°F
| Minimum sea water temperature in August: | 77.0°F |
| Maximum sea water temperature in August: | 67.3°F |
| Average sea water temperature in August: | 71.9°F |
| more information | |
14 days
forecast
forecast
| Martha's Vineyard |
monthly
weather
weather
| Martha's Vineyard |
Sea water temperature for the last 10 days:
| August 15 | 71.2°F | August 10 | 71.4°F |
| August 14 | 70.5°F | August 9 | 71.4°F |
| August 13 | 72.3°F | August 8 | 72.3°F |
| August 12 | 72.0°F | August 7 | 71.1°F |
| August 11 | 70.9°F | August 6 | 70.2°F |
Monthly sea water temperature, °F
When is the warmest sea in Martha's Vineyard?
Based on the data about daily sea water temperature for the last three years the warmest sea in Martha's Vineyard was noticed in August, July and September.
Monthly Sea Temperatures in Martha's Vineyard, °F
Sea water temperature in August, °F
Show year:
2026
2025
2024
The average sea water temperature in August of 2026 was 70.8°F. The highest and lowest sea temperatures during the month were 72.3°F and 69.1°F.
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 68.6°F. The highest and lowest sea temperatures during the month were 71.4°F and 66.4°F.
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.
current
weather
weather
| Martha's Vineyard |
weather in
August
August
| Martha's Vineyard |
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: 18:27
August 15, saturday
2100
70°F
N
10 mph
10 mph
August 16, sunday
0000
70°F
N
8 mph
8 mph
0300
70°F
NE
6 mph
6 mph
0600
70°F
NE
6 mph
6 mph
0900
72°F
N
6 mph
6 mph
1200
73°F
N
11 mph
11 mph
1500
73°F
N
14 mph
14 mph
1800
73°F
N
15 mph
15 mph
