World Resorts USA Martha's Vineyard Weather

Martha's Vineyard 7 Days Forecast

15.08
sat
Day
77°F
E 1 mph
Precip.
10%
Night
70°F
N 8 mph
Precip.
5%
16.08
sun
Day
73°F
N 11 mph
Precip.
4%
Night
72°F
N 11 mph
Precip.
55%
17.08
mon
Day
70°F
NW 22 mph
Precip.
75%
Night
70°F
S 17 mph
Precip.
20%
18.08
tue
Day
73°F
S 9 mph
Precip.
7%
Night
70°F
NE 11 mph
Precip.
12%
19.08
wed
Day
73°F
NE 11 mph
Precip.
8%
Night
75°F
NE 14 mph
Precip.
36%
20.08
thu
Day
75°F
NE 11 mph
Precip.
68%
Night
72°F
NW 7 mph
Precip.
11%
21.08
fri
Day
75°F
W 11 mph
Precip.
4%
Night
72°F
NW 9 mph
Precip.
7%

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.

Air temperature in Martha's Vineyard, °F

Precipitation total in Martha's Vineyard, in.

* Charts above show average data for the last 3 years.

Best time for vacation in Martha's Vineyard

Sunniest months:
November 15 days
October 14 days
June 14 days
Warmest months:
July 74.9 °F
August 73.4 °F
September 69.3 °F
Warmest sea temp:
August 71.9 °F
July 70.3 °F
September 69.0 °F
Coldest months:
February 36.5 °F
January 36.6 °F
December 42.4 °F
Rainiest months:
January 3 days
October 3 days
July 2 days
Windiest months:
December 14.5 mph
January 14.5 mph
November 14.4 mph

Martha's Vineyard on a weather map

Current weather
18:26
Martha's Vineyard
+72°F
N 8 mph
Feels like: +77°F
Precip.: 4%
Places in USA:
Name
°F
Boston
+75°F
Washington
+82°F
Hawaii
+81°F
Las Vegas
+97°F
Los Angeles
+84°F
Miami
+88°F
Maui
+75°F
Myrtle Beach
+91°F
New York
+84°F
San Diego
+75°F
San Francisco
+64°F
Santa Monica
+77°F
Sarasota
+84°F
Houston
+95°F
Chicago
+77°F
all places
24 Hours Forecast
Martha's Vineyard
Local time: 18:26
August 15, saturday
2100
70°F
N
10 mph
August 16, sunday
0000
70°F
N
8 mph
0300
70°F
NE
6 mph
0600
70°F
NE
6 mph
0900
72°F
N
6 mph
1200
73°F
N
11 mph
1500
73°F
N
14 mph
1800
73°F
N
15 mph
Units of measurement: °C / °F