Measurements:
°C
°F
Siasconset
58°F
SE 14 mph
Feels like: 54°F
Precip: 9%
World Resorts USA Siasconset Weather

Siasconset Sea Water Temperature

Current Sea Water Temperature:
+57.0°F
Maximum Sea Water Temperature in October: 68.4°F
Minimum Sea Water Temperature in October: 55.6°F
Average water temperature in October: 61.5°F

Sea Water Temperature for the Last 10 Days:

October 26 57.0°F October 21 58.8°F
October 25 55.8°F October 20 58.2°F
October 24 55.8°F October 19 59.4°F
October 23 59.4°F October 18 61.6°F
October 22 58.4°F October 17 62.2°F

When is the Warmest Sea for Siasconset?

According to our data for the last three years for Siasconset the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2026 2025 2024

The average sea surface temperature in August 2026 for Siasconset was 71.7°F. The maximum and minimum values were 67.0°F and 75.0°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Siasconset was 69.7°F. The maximum and minimum values were 65.8°F and 73.8°F respectively.

Sea Water Temperature in September

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Siasconset was 68.1°F. The maximum and minimum values were 59.4°F and 71.8°F respectively.

Best Time to Visit Siasconset
The most sunny months:
June 14 days
July 13 days
August 12 days
The most warm months:
August 74.1 °F
July 73.9 °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:
January 3 days
October 3 days
December 3 days
The most windy months:
January 19 mph
March 19 mph
December 19 mph

Siasconset on the Weather Map

USA Resorts:
NAME
F°
Boston +58
Chicago +58
Hawaii +80
Houston +76
Las Vegas +64
Los Angeles +74
Maui +72
Miami +82
New York +62
Panama City Beach +66
San Diego +74
San Francisco +60
Santa Monica +72
Tampa +74
Washington +56
24 Hours Weather Forecast
Siasconset
Local time: 22:43
27 oct, tuesday
0000 58°F
SE
14 mph
0300 56°F
S
17 mph
0600 54°F
SW
20 mph
0900 52°F
SW
21 mph
1200 50°F
SW
19 mph
1500 50°F
SW
14 mph
1800 48°F
SW
11 mph
2100 48°F
W
9 mph