Measurements:
°C
°F
CURRENT WEATHER
17:33
Siasconset
80°F
NE 19 mph
Feels like: 82°F
Precip: 6%
World Resorts USA Siasconset Weather

7 Day Weather Forecast

08.25
tue
DAY
80°F
E 19 mph
precip
5%
NIGHT
70°F
E 14 mph
precip
10%
08.26
wed
DAY
72°F
E 9 mph
precip
5%
NIGHT
74°F
NE 13 mph
precip
23%
08.27
thu
DAY
76°F
NE 11 mph
precip
24%
NIGHT
74°F
N 17 mph
precip
64%
08.28
fri
DAY
74°F
SE 1 mph
precip
14%
NIGHT
76°F
E 14 mph
precip
29%
08.29
sat
DAY
72°F
S 11 mph
precip
21%
NIGHT
70°F
N 7 mph
precip
21%
08.30
sun
DAY
74°F
NE 9 mph
precip
7%
NIGHT
76°F
NE 4 mph
precip
36%
08.31
mon
DAY
74°F
SE 9 mph
precip
11%
NIGHT
72°F
NW 6 mph
precip
11%

Siasconset Sea Water Temperature in August, °F

Select Year: 2026 2025 2024

The average sea surface temperature in August 2026 for Siasconset was 20.9°F. The maximum and minimum values were 18.5°F and 22.5°F respectively.

Siasconset on the Weather Map

Best Time to Visit Siasconset
The most sunny months:
June 14 days
July 13 days
September 13 days
The most warm months:
July 73.9 °F
August 73.3 °F
September 69.0 °F
Warmest sea temperature:
August 70.8 °F
July 68.7 °F
September 67.9 °F
The most cold months:
February 34.6 °F
January 34.9 °F
March 39.7 °F
The most rainy months:
October 4 days
January 3 days
December 3 days
The most windy months:
January 19 mph
March 19 mph
December 19 mph
more details