18.03
wed
wed
Day
34°F
S 12 mph
Precip.
0%
0%
Night
32°F
NW 9 mph
Precip.
0%
0%
19.03
thu
thu
Day
36°F
NW 9 mph
Precip.
0%
0%
Night
37°F
NE 11 mph
Precip.
0%
0%
20.03
fri
fri
Day
41°F
NE 11 mph
Precip.
0%
0%
Night
43°F
N 22 mph
Precip.
0%
0%
21.03
sat
sat
Day
43°F
N 8 mph
Precip.
0%
0%
Night
45°F
NW 4 mph
Precip.
74%
74%
22.03
sun
sun
Day
43°F
NE 13 mph
Precip.
0%
0%
Night
43°F
SE 4 mph
Precip.
100%
100%
23.03
mon
mon
Day
36°F
SW 28 mph
Precip.
100%
100%
Night
37°F
SW 23 mph
Precip.
30%
30%
24.03
tue
tue
Day
34°F
S 27 mph
Precip.
100%
100%
Night
36°F
E 6 mph
Precip.
0%
0%
sea water
temperature
temperature
| Siasconset |
monthly
weather
weather
| Siasconset |
current
weather
weather
| Siasconset |
14 days
forecast
forecast
| Siasconset |
Sea water temperature in March, °F
Show year:
2026
2025
2024
The average sea water temperature in March of 2026 was 39.2°F. The highest and lowest sea temperatures during the month were 42.3°F and 37.2°F.
Sea water temperature in April, °F
Show year:
2025
2024
2023
The average sea water temperature in April of 2025 was 44.4°F. The highest and lowest sea temperatures during the month were 50.4°F and 42.1°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: 17:25
March 18, wednesday
1800
32°F
NW
9 mph
9 mph
2100
32°F
NW
9 mph
9 mph
March 19, thursday
0000
32°F
NW
9 mph
9 mph
0300
32°F
NW
7 mph
7 mph
0600
34°F
NW
11 mph
11 mph
0900
34°F
NW
10 mph
10 mph
1200
36°F
NW
9 mph
9 mph
1500
36°F
N
6 mph
6 mph
