World Resorts USA Nantucket

Nantucket Monthly Weather Averages

Please click on any column to get detailed information about Nantucket weather in that particular month. You will get daily weather information for that month for the last several years.

Day & Night air temperature, °F

The warmest month in Nantucket is august. The average daily temp is 71.3°F. The average nightly temp is 70.6°F.

Sea water temperature, °F

The warmest sea temperature usually observed in August. Average daily sea water temperature during this month is 72.5°F.

Precipitation total, in.

June is the month with least precipitations during the year. The average precipitation totals for this month is 0.7 in. The month with most precipitation total is January.

Number of rainy days

This chart shows averages for the last three years. It shows medium and heavy rains only, it doesn't show light rains.

Wind speed, mph
Sunny, partly cloudy and cloudy days
Average sunny hours

Sunny hours are calculated based on the average daily number of hours while sunlight can reach the ground. It depends on day length and cloudiness during the day.

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

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: 13:42
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