World Resorts USA Siasconset Weather

Siasconset 7 Days Forecast

15.08
sat
Day
77°F
S 9 mph
Precip.
2%
Night
72°F
N 7 mph
Precip.
4%
16.08
sun
Day
72°F
N 13 mph
Precip.
5%
Night
73°F
N 21 mph
Precip.
10%
17.08
mon
Day
73°F
NE 24 mph
Precip.
91%
Night
72°F
S 21 mph
Precip.
12%
18.08
tue
Day
70°F
S 10 mph
Precip.
9%
Night
72°F
NE 11 mph
Precip.
9%
19.08
wed
Day
73°F
NE 11 mph
Precip.
8%
Night
73°F
NE 16 mph
Precip.
11%
20.08
thu
Day
75°F
NE 17 mph
Precip.
17%
Night
73°F
E 14 mph
Precip.
48%
21.08
fri
Day
70°F
SW 21 mph
Precip.
11%
Night
68°F
SW 15 mph
Precip.
14%

Sea water temperature in August, °F

Show year:
2026
2025
2024

The average sea water temperature in August of 2026 was 69.4°F. The highest and lowest sea temperatures during the month were 72.5°F and 65.3°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

Sunniest months:
June 14 days
July 13 days
September 13 days
Warmest months:
July 71.5 °F
August 70.9 °F
September 67.1 °F
Warmest sea temp:
August 68.6 °F
July 66.8 °F
September 66.1 °F
Coldest months:
February 36.1 °F
January 36.4 °F
March 40.7 °F
Rainiest months:
October 4 days
January 3 days
December 3 days
Windiest months:
January 19.0 mph
March 19.0 mph
December 18.9 mph

Siasconset on a weather map

Siasconset
+68°F
S 17 mph
Feels like: +68°F
Precip.: 9%
Places in USA:
Name
°F
+63°F
+75°F
+77°F
+73°F
+66°F
+81°F
+73°F
+79°F
+68°F
+70°F
+59°F
+66°F
+77°F
+81°F
+75°F
24 Hours Forecast
Siasconset
Local time: 03:43
August 15, saturday
0600
66°F
S
15 mph
0900
72°F
SW
13 mph
1200
77°F
S
9 mph
1500
70°F
W
6 mph
1800
70°F
W
6 mph
2100
70°F
NW
5 mph
August 16, sunday
0000
72°F
N
7 mph
0300
72°F
NE
6 mph
Units of measurement: °C / °F