World Resorts USA Nantucket Weather

Nantucket weather in December

Weather in Nantucket: December

Average day temperature: 43.5°F
Average night temperature: 43.0°F
Sea water temperature: 45.3°F
Number of sunny days: 8 days
Day length: 9.2 - 9.4 hours
Number of rainy days: 3 days
Precipitation totals: 1.6 in.

Air temperature in December, °F

Show year:
2023
2022
2021

The highest day temperature during December of 2023 was 56°F. At the same time the lowest night temperature was 34°F. Day and night temperature averages during December were 43.6°F and 43.9°F.

Sea water temperature in Nantucket in December, °F

Show year:
2023
2022
2021

The average sea water temperature in December of 2023 was 45.1°F. The highest and lowest sea temperatures during the month were 47.3°F and 42.8°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 Nantucket in December is 1.6 in. Other months of the year show relatively similar values.

Wind speed in December, mph

The average wind speed value in December is 18.7 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: 4.1.

Best time for vacation in Nantucket

Sunniest months:
June 14 days
September 13 days
July 12 days
Warmest months:
August 71.3 °F
July 70.7 °F
September 66.9 °F
Warmest sea temp:
August 72.4 °F
July 70.4 °F
September 68.7 °F
Coldest months:
February 37.1 °F
January 37.7 °F
March 40.3 °F
Rainiest months:
January 4 days
October 4 days
March 3 days
Windiest months:
March 18.9 mph
December 18.7 mph
January 18.6 mph

Nantucket on a weather map

Nantucket
+48°F
W 26 mph
Feels like: +41°F
Precip.: 0%
Places in USA:
Name
°F
+48°F
+50°F
+75°F
+75°F
+59°F
+70°F
+77°F
+70°F
+46°F
+63°F
+57°F
+73°F
+72°F
+66°F
+34°F
24 Hours Forecast
Nantucket
Local time: 13:48
November 21, thursday
1500
48°F
W
26 mph
1800
50°F
W
23 mph
2100
50°F
W
26 mph
November 22, friday
0000
50°F
N
17 mph
0300
50°F
NE
29 mph
0600
50°F
NE
19 mph
0900
50°F
NE
14 mph
1200
48°F
NW
6 mph
Units of measurement: °C / °F