21.07
tue
tue
Day
75°F
NW 17 mph
Precip.
9%
9%
Night
72°F
NE 29 mph
Precip.
86%
86%
22.07
wed
wed
Day
72°F
NE 27 mph
Precip.
64%
64%
Night
72°F
NE 25 mph
Precip.
85%
85%
23.07
thu
thu
Day
70°F
SE 11 mph
Precip.
5%
5%
Night
72°F
SW 15 mph
Precip.
4%
4%
24.07
fri
fri
Day
70°F
NW 5 mph
Precip.
3%
3%
Night
66°F
W 12 mph
Precip.
7%
7%
25.07
sat
sat
Day
68°F
W 16 mph
Precip.
8%
8%
Night
68°F
NW 5 mph
Precip.
3%
3%
26.07
sun
sun
Day
68°F
W 9 mph
Precip.
3%
3%
Night
68°F
N 6 mph
Precip.
4%
4%
27.07
mon
mon
Day
72°F
NE 19 mph
Precip.
12%
12%
Night
72°F
N 21 mph
Precip.
33%
33%
sea water
temperature
temperature
| Siasconset |
monthly
weather
weather
| Siasconset |
current
weather
weather
| Siasconset |
14 days
forecast
forecast
| Siasconset |
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 67.6°F. The highest and lowest sea temperatures during the month were 71.4°F and 64.2°F.
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 67.8°F. The highest and lowest sea temperatures during the month were 70.9°F and 65.5°F.
Air temperature in Siasconset, °F
Precipitation total in Siasconset, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Siasconset
Siasconset on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Siasconset
Local time: 09:41
July 21, tuesday
1200
75°F
NW
17 mph
17 mph
1500
77°F
NW
19 mph
19 mph
1800
77°F
NW
22 mph
22 mph
2100
73°F
N
25 mph
25 mph
July 22, wednesday
0000
72°F
NE
29 mph
29 mph
0300
72°F
NE
26 mph
26 mph
0600
72°F
NE
28 mph
28 mph
0900
72°F
N
25 mph
25 mph
