World Resorts USA Nantucket Weather

Nantucket 7 Days Forecast

12.01
mon
Day
36°F
E 30 mph
Precip.
0%
Night
39°F
E 22 mph
Precip.
0%
13.01
tue
Day
39°F
E 14 mph
Precip.
0%
Night
39°F
NE 16 mph
Precip.
0%
14.01
wed
Day
43°F
NE 25 mph
Precip.
0%
Night
41°F
N 13 mph
Precip.
0%
15.01
thu
Day
39°F
E 5 mph
Precip.
0%
Night
37°F
SW 29 mph
Precip.
100%
16.01
fri
Day
30°F
NW 36 mph
Precip.
100%
Night
32°F
SE 6 mph
Precip.
0%
17.01
sat
Day
37°F
N 15 mph
Precip.
27%
Night
37°F
NE 21 mph
Precip.
22%
18.01
sun
Day
36°F
E 23 mph
Precip.
100%
Night
36°F
E 17 mph
Precip.
0%

Sea water temperature in January, °F

Show year:
2025
2024
2023

The average sea water temperature in January of 2025 was 36.9°F. The highest and lowest sea temperatures during the month were 41.9°F and 33.8°F.

Air temperature in Nantucket, °F

Precipitation total in Nantucket, in.

* Charts above show average data for the last 3 years.

Best time for vacation in Nantucket

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 72.0 °F
July 70.1 °F
September 68.5 °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
December 18.9 mph

Nantucket on a weather map

Current weather
10:48
Nantucket
+36°F
E 30 mph
Feels like: +27°F
Precip.: 0%
Places in USA:
Name
°F
Washington
+41°F
Hawaii
+73°F
Honolulu
+73°F
Las Vegas
+45°F
Los Angeles
+55°F
Miami
+72°F
Miami Beach
+75°F
Maui
+66°F
New York
+37°F
San Diego
+57°F
San Francisco
+46°F
Sarasota
+64°F
Tampa
+61°F
Houston
+45°F
Chicago
+27°F
all places
24 Hours Forecast
Nantucket
Local time: 10:48
January 12, monday
1200
36°F
E
30 mph
1500
37°F
E
24 mph
1800
39°F
E
22 mph
2100
37°F
NE
21 mph
January 13, tuesday
0000
39°F
E
22 mph
0300
37°F
E
20 mph
0600
37°F
E
17 mph
0900
37°F
E
15 mph
Units of measurement: °C / °F