World Resorts USA Nantucket Weather

Nantucket 7 Days Forecast

13.01
tue
Day
43°F
NE 16 mph
Precip.
0%
Night
41°F
NE 26 mph
Precip.
0%
14.01
wed
Day
41°F
NE 19 mph
Precip.
0%
Night
39°F
N 11 mph
Precip.
0%
15.01
thu
Day
37°F
NE 17 mph
Precip.
0%
Night
39°F
NE 17 mph
Precip.
71%
16.01
fri
Day
34°F
E 27 mph
Precip.
83%
Night
36°F
NE 19 mph
Precip.
0%
17.01
sat
Day
37°F
NE 15 mph
Precip.
0%
Night
41°F
N 17 mph
Precip.
100%
18.01
sun
Day
39°F
NE 27 mph
Precip.
44%
Night
28°F
E 34 mph
Precip.
100%
19.01
mon
Day
25°F
E 32 mph
Precip.
0%
Night
39°F
NE 34 mph
Precip.
100%

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
20:16
Nantucket
+39°F
NE 19 mph
Feels like: +32°F
Precip.: 0%
Places in USA:
Name
°F
Washington
+45°F
Hawaii
+72°F
Honolulu
+72°F
Las Vegas
+63°F
Los Angeles
+72°F
Miami
+73°F
Miami Beach
+73°F
Maui
+68°F
New York
+39°F
San Diego
+70°F
San Francisco
+59°F
Sarasota
+68°F
Tampa
+63°F
Houston
+57°F
Chicago
+43°F
all places
24 Hours Forecast
Nantucket
Local time: 20:16
January 13, tuesday
2100
39°F
NE
19 mph
January 14, wednesday
0000
41°F
NE
26 mph
0300
41°F
NE
24 mph
0600
43°F
NE
25 mph
0900
41°F
NE
20 mph
1200
41°F
NE
19 mph
1500
41°F
NE
16 mph
1800
41°F
N
14 mph
Units of measurement: °C / °F