World Resorts USA Siasconset Weather

Siasconset weather in August

Weather in Siasconset: August

Average day temperature: 70.9°F
Average night temperature: 70.1°F
Sea water temperature: 68.7°F
Number of sunny days: 12 days
Day length: 13.1 - 14.3 hours
Number of rainy days: 2 days
Precipitation totals: 1.3 in.

Air temperature in August, °F

Show year:
2025
2024
2023

The highest day temperature during August of 2025 was 73°F. At the same time the lowest night temperature was 63°F. Daily and nightly averages during August were 69.3°F and 67.7°F.

Sea water temperature in Siasconset in August, °F

Show year:
2026
2025
2024

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.

Sunny, partly cloudy and cloudy days

Mostly all days in August are partly cloudy but sunny or cloudy days are also possible.

Precipitation total in August, in.

Precipitation total value in Siasconset in August is 1.3 in. Other months of the year show relatively similar values.

Wind speed in August, mph

The average wind speed value in August is 13.1 mph It makes August lest windy month of the year.

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in August is: 8.2.

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: 03:42
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