World Resorts USA Martha's Vineyard Weather

Martha's Vineyard 14 Days Forecast

09.09
wed
Day
75°F
NE 12 mph
Precip.
16%
Night
73°F
NE 23 mph
Precip.
26%
10.09
thu
Day
73°F
E 25 mph
Precip.
22%
Night
72°F
SE 9 mph
Precip.
15%
11.09
fri
Day
70°F
SE 7 mph
Precip.
11%
Night
68°F
SE 2 mph
Precip.
3%
12.09
sat
Day
70°F
NW 5 mph
Precip.
2%
Night
68°F
N 9 mph
Precip.
17%
13.09
sun
Day
72°F
N 16 mph
Precip.
19%
Night
72°F
NE 14 mph
Precip.
33%
14.09
mon
Day
75°F
E 4 mph
Precip.
20%
Night
70°F
W 7 mph
Precip.
17%
15.09
tue
Day
72°F
N 9 mph
Precip.
10%
Night
73°F
NE 14 mph
Precip.
15%
16.09
wed
Day
75°F
E 6 mph
Precip.
49%
Night
68°F
SW 9 mph
Precip.
11%
17.09
thu
Day
66°F
W 7 mph
Precip.
19%
Night
64°F
N 5 mph
Precip.
20%
18.09
fri
Day
66°F
N 4 mph
Precip.
16%
Night
66°F
NE 14 mph
Precip.
15%
19.09
sat
Day
70°F
E 10 mph
Precip.
5%
Night
70°F
E 14 mph
Precip.
15%
20.09
sun
Day
72°F
NE 8 mph
Precip.
18%
Night
70°F
NE 7 mph
Precip.
26%
21.09
mon
Day
70°F
N 8 mph
Precip.
36%
Night
70°F
NW 9 mph
Precip.
51%
22.09
tue
Day
68°F
NW 19 mph
Precip.
41%
Night
68°F
NW 16 mph
Precip.
40%

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.

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 74.3 °F
September 69.3 °F
Warmest sea temp:
August 71.7 °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
18:49
Martha's Vineyard
+73°F
N 16 mph
Feels like: +77°F
Precip.: 17%
Places in USA:
Name
°F
Boston
+73°F
Washington
+90°F
Hawaii
+82°F
Las Vegas
+97°F
Los Angeles
+97°F
Miami
+88°F
Maui
+70°F
Myrtle Beach
+82°F
New York
+86°F
San Diego
+81°F
San Francisco
+77°F
Santa Monica
+91°F
Sarasota
+86°F
Houston
+88°F
Chicago
+75°F
all places
24 Hours Forecast
Martha's Vineyard
Local time: 18:49
September 09, wednesday
2100
72°F
NE
18 mph
September 10, thursday
0000
73°F
NE
23 mph
0300
73°F
NE
25 mph
0600
73°F
NE
26 mph
0900
73°F
NE
27 mph
1200
73°F
E
25 mph
1500
75°F
NE
21 mph
1800
75°F
E
17 mph
Units of measurement: °C / °F