World Resorts USA Siasconset Weather

Siasconset sea water temperature

Current sea water temperature:
+35.4°F
Minimum sea water temperature in February: 43.7°F
Maximum sea water temperature in February: 33.4°F
Average sea water temperature in February: 39.2°F

Sea water temperature for the last 10 days:

February 5 35.4°F January 31 33.4°F
February 4 36.3°F January 30 36.7°F
February 3 36.9°F January 29 38.3°F
February 2 36.1°F January 28 38.8°F
February 1 36.0°F January 27 37.6°F

When is the warmest sea in Siasconset?

Based on the data about daily sea water temperature for the last three years the warmest sea in Siasconset was noticed in August, July and September.

Monthly Sea Temperatures in Siasconset, °F

Sea water temperature in August, °F

Show year:
2025
2024
2023

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.

Sea water temperature in July, °F

Show year:
2025
2024
2023

The average sea water temperature in July of 2025 was 67.0°F. The highest and lowest sea temperatures during the month were 70.2°F and 61.2°F.

Sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 66.2°F. The highest and lowest sea temperatures during the month were 68.5°F and 64.6°F.

Best time for vacation in Siasconset

Sunniest months:
October 13 days
September 13 days
June 13 days
Warmest months:
August 70.9 °F
July 70.6 °F
September 67.1 °F
Warmest sea temp:
August 68.6 °F
July 66.7 °F
September 66.1 °F
Coldest months:
January 36.4 °F
February 36.5 °F
March 40.4 °F
Rainiest months:
October 4 days
January 3 days
December 3 days
Windiest months:
March 19.1 mph
January 19.0 mph
December 18.9 mph

Siasconset on a weather map

Siasconset
+25°F
S 11 mph
Feels like: +16°F
Precip.: 0%
Places in USA:
Name
°F
+19°F
+77°F
+77°F
+73°F
+75°F
+52°F
+55°F
+72°F
+16°F
+63°F
+66°F
+50°F
+46°F
+64°F
+27°F
24 Hours Forecast
Siasconset
Local time: 19:36
February 05, thursday
2100
25°F
S
11 mph
February 06, friday
0000
23°F
S
11 mph
0300
25°F
SW
8 mph
0600
27°F
SW
14 mph
0900
28°F
SW
15 mph
1200
30°F
SW
14 mph
1500
30°F
S
10 mph
1800
30°F
S
7 mph
Units of measurement: °C / °F