12.08
wed
wed
Day

88°F
W 2 mph
Precip.
1%
1%
Night

68°F
NE 13 mph
Precip.
10%
10%
13.08
thu
thu
Day

70°F
NE 16 mph
Precip.
63%
63%
Night

73°F
SE 11 mph
Precip.
7%
7%
14.08
fri
fri
Day

75°F
SE 11 mph
Precip.
2%
2%
Night

70°F
S 14 mph
Precip.
3%
3%
15.08
sat
sat
Day

72°F
S 9 mph
Precip.
2%
2%
Night

70°F
NE 9 mph
Precip.
5%
5%
16.08
sun
sun
Day

72°F
N 15 mph
Precip.
14%
14%
Night

73°F
NE 20 mph
Precip.
56%
56%
17.08
mon
mon
Day

77°F
NE 6 mph
Precip.
27%
27%
Night

73°F
W 8 mph
Precip.
24%
24%
18.08
tue
tue
Day

73°F
W 7 mph
Precip.
4%
4%
Night

72°F
NE 9 mph
Precip.
7%
7%
19.08
wed
wed
Day

75°F
NE 13 mph
Precip.
7%
7%
Night

73°F
NE 14 mph
Precip.
11%
11%
20.08
thu
thu
Day

75°F
NE 21 mph
Precip.
9%
9%
Night

75°F
N 17 mph
Precip.
20%
20%
21.08
fri
fri
Day

77°F
NE 21 mph
Precip.
30%
30%
Night

75°F
NE 21 mph
Precip.
21%
21%
22.08
sat
sat
Day

77°F
NE 11 mph
Precip.
18%
18%
Night

73°F
E 15 mph
Precip.
71%
71%
23.08
sun
sun
Day

72°F
NE 10 mph
Precip.
77%
77%
Night

68°F
SW 10 mph
Precip.
19%
19%
24.08
mon
mon
Day

70°F
SW 13 mph
Precip.
25%
25%
Night

68°F
SW 8 mph
Precip.
12%
12%
25.08
tue
tue
Day

72°F
W 7 mph
Precip.
5%
5%
Night

70°F
W 7 mph
Precip.
9%
9%
sea water
temperature
temperature
| Edgartown |
monthly
weather
weather
| Edgartown |
current
weather
weather
| Edgartown |
7 days
forecast
forecast
| Edgartown |
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 70.2°F. The highest and lowest sea temperatures during the month were 73.2°F and 68.4°F.
Air temperature in Edgartown, °F
Precipitation total in Edgartown, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Edgartown
Edgartown on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Edgartown
Local time: 17:17
August 12, wednesday
1800

81°F
N
9 mph
9 mph
2100

72°F
N
11 mph
11 mph
August 13, thursday
0000

68°F
NE
13 mph
13 mph
0300

70°F
SE
11 mph
11 mph
0600

68°F
E
8 mph
8 mph
0900

70°F
N
14 mph
14 mph
1200

70°F
NE
16 mph
16 mph
1500

72°F
NE
16 mph
16 mph



























