29.04
wed
wed
Day
48°F
S 17 mph
Precip.
69%
69%
Night
48°F
W 5 mph
Precip.
0%
0%
30.04
thu
thu
Day
50°F
S 6 mph
Precip.
100%
100%
Night
50°F
SE 10 mph
Precip.
74%
74%
01.05
fri
fri
Day
48°F
E 19 mph
Precip.
0%
0%
Night
50°F
SE 17 mph
Precip.
66%
66%
02.05
sat
sat
Day
48°F
NE 11 mph
Precip.
0%
0%
Night
48°F
E 9 mph
Precip.
82%
82%
03.05
sun
sun
Day
48°F
E 20 mph
Precip.
0%
0%
Night
50°F
E 19 mph
Precip.
0%
0%
04.05
mon
mon
Day
50°F
NE 22 mph
Precip.
0%
0%
Night
52°F
NE 23 mph
Precip.
0%
0%
05.05
tue
tue
Day
52°F
NE 22 mph
Precip.
0%
0%
Night
55°F
NE 37 mph
Precip.
100%
100%
sea water
temperature
temperature
| Siasconset |
monthly
weather
weather
| Siasconset |
current
weather
weather
| Siasconset |
14 days
forecast
forecast
| Siasconset |
Sea water temperature in April, °F
Show year:
2026
2025
2024
The average sea water temperature in April of 2026 was 44.1°F. The highest and lowest sea temperatures during the month were 48.0°F and 39.6°F.
Sea water temperature in May, °F
Show year:
2025
2024
2023
The average sea water temperature in May of 2025 was 51.5°F. The highest and lowest sea temperatures during the month were 54.5°F and 48.2°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: 08:17
April 29, wednesday
0900
46°F
S
19 mph
19 mph
1200
48°F
S
17 mph
17 mph
1500
50°F
S
11 mph
11 mph
1800
48°F
SW
12 mph
12 mph
2100
48°F
SW
8 mph
8 mph
April 30, thursday
0000
48°F
W
5 mph
5 mph
0300
48°F
S
4 mph
4 mph
0600
48°F
SW
9 mph
9 mph
