World Resorts USA Siasconset Weather

Siasconset weather in December

Weather in Siasconset: December

Average day temperature: 42.9°F
Average night temperature: 42.2°F
Sea water temperature: 46.0°F
Number of sunny days: 8 days
Day length: 9.2 - 9.4 hours
Number of rainy days: 3 days
Precipitation totals: 1.3 in.

Air temperature in December, °F

Show year:
2024
2023
2022

The highest day temperature during December of 2024 was 51°F. At the same time the lowest night temperature was 23°F. Daily and nightly averages during December were 40.1°F and 39.2°F.

Sea water temperature in Siasconset in December, °F

Show year:
2024
2023
2022

The average sea water temperature in December of 2024 was 44.3°F. The highest and lowest sea temperatures during the month were 47.8°F and 41.5°F.

Sunny, partly cloudy and cloudy days

Mostly all days in December are cloudy but sunny and partly cloudy days are also possible.

Precipitation total in December, in.

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

Wind speed in December, mph

The average wind speed value in December is 18.4 mph It makes December one of the most windy months 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 December is: 4.0.

Best time for vacation in Siasconset

Sunniest months:
June 13 days
September 13 days
October 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:
February 36.5 °F
January 36.9 °F
March 40.4 °F
Rainiest months:
January 4 days
October 4 days
December 3 days
Windiest months:
March 19.1 mph
January 19.0 mph
November 18.6 mph

Siasconset on a weather map

Siasconset
+21°F
SE 22 mph
Feels like: +9°F
Precip.: 0%
Places in USA:
Name
°F
+30°F
+75°F
+75°F
+41°F
+52°F
+70°F
+77°F
+70°F
+21°F
+54°F
+46°F
+61°F
+61°F
+46°F
+5°F
24 Hours Forecast
Siasconset
Local time: 01:57
December 05, friday
0300
21°F
SE
22 mph
0600
21°F
S
16 mph
0900
25°F
S
6 mph
1200
28°F
NE
4 mph
1500
30°F
NE
9 mph
1800
32°F
NE
8 mph
2100
34°F
N
7 mph
December 06, saturday
0000
36°F
N
6 mph
Units of measurement: °C / °F