World Resorts USA Nantucket Weather

Nantucket 7 Days Forecast

06.04
mon
Day
46°F
E 24 mph
Precip.
0%
Night
41°F
SE 11 mph
Precip.
0%
07.04
tue
Day
43°F
W 11 mph
Precip.
0%
Night
43°F
S 26 mph
Precip.
0%
08.04
wed
Day
39°F
SW 16 mph
Precip.
0%
Night
39°F
NW 7 mph
Precip.
0%
09.04
thu
Day
43°F
NW 11 mph
Precip.
0%
Night
43°F
N 8 mph
Precip.
0%
10.04
fri
Day
45°F
NE 6 mph
Precip.
0%
Night
46°F
NE 14 mph
Precip.
0%
11.04
sat
Day
46°F
E 19 mph
Precip.
100%
Night
46°F
SW 17 mph
Precip.
0%
12.04
sun
Day
43°F
W 12 mph
Precip.
0%
Night
45°F
N 19 mph
Precip.
0%

Sea water temperature in April, °F

Show year:
2025
2024
2023

The average sea water temperature in April of 2025 was 45.1°F. The highest and lowest sea temperatures during the month were 50.7°F and 42.6°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:
October 13 days
June 13 days
September 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 36.1 °F
January 36.4 °F
March 40.7 °F
Rainiest months:
October 4 days
January 3 days
December 3 days
Windiest months:
January 19.0 mph
March 19.0 mph
December 18.9 mph

Nantucket on a weather map

Current weather
12:45
Nantucket
+46°F
E 24 mph
Feels like: +37°F
Precip.: 0%
Places in USA:
Name
°F
Washington
+57°F
Hawaii
+72°F
Honolulu
+72°F
Las Vegas
+73°F
Los Angeles
+66°F
Miami
+82°F
Miami Beach
+77°F
Maui
+66°F
New York
+48°F
San Diego
+66°F
San Francisco
+54°F
Sarasota
+84°F
Tampa
+86°F
Houston
+66°F
Chicago
+48°F
all places
24 Hours Forecast
Nantucket
Local time: 12:45
April 06, monday
1500
46°F
E
28 mph
1800
45°F
E
28 mph
2100
41°F
E
21 mph
April 07, tuesday
0000
41°F
SE
11 mph
0300
43°F
SE
10 mph
0600
43°F
W
5 mph
0900
43°F
NW
12 mph
1200
43°F
W
11 mph
Units of measurement: °C / °F