Current sea water temperature:
+48.7°F
| Minimum sea water temperature in April: | 51.8°F |
| Maximum sea water temperature in April: | 40.6°F |
| Average sea water temperature in April: | 45.7°F |
| more information | |
14 days
forecast
forecast
| Martha's Vineyard |
monthly
weather
weather
| Martha's Vineyard |
Sea water temperature for the last 10 days:
| April 29 | 48.7°F | April 24 | 47.8°F |
| April 28 | 48.7°F | April 23 | 47.1°F |
| April 27 | 47.7°F | April 22 | 47.3°F |
| April 26 | 47.7°F | April 21 | 46.6°F |
| April 25 | 48.0°F | April 20 | 45.9°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:
2025
2024
2023
The average sea water temperature in August of 2025 was 69.0°F. The highest and lowest sea temperatures during the month were 72.1°F and 67.3°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 68.2°F. The highest and lowest sea temperatures during the month were 71.1°F and 64.4°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
May
May
| 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: 08:23
April 29, wednesday
0900
48°F
S
15 mph
15 mph
1200
54°F
S
10 mph
10 mph
1500
52°F
W
3 mph
3 mph
1800
50°F
W
5 mph
5 mph
2100
48°F
W
4 mph
4 mph
April 30, thursday
0000
48°F
W
2 mph
2 mph
0300
48°F
SE
1 mph
1 mph
0600
48°F
SW
5 mph
5 mph
