Measurements:
°C
°F
CURRENT WEATHER
17:02
Nantucket
36°F
NE 17 mph
Feels like: 28°F
Precip: 0%
World Resorts USA Nantucket Weather

7 Day Weather Forecast

03.13
fri
DAY
36°F
E 16 mph
precip
0%
NIGHT
38°F
N 29 mph
precip
0%
03.14
sat
DAY
42°F
E 39 mph
precip
0%
NIGHT
36°F
SE 29 mph
precip
0%
03.15
sun
DAY
36°F
SW 8 mph
precip
0%
NIGHT
40°F
NW 22 mph
precip
0%
03.16
mon
DAY
46°F
N 34 mph
precip
100%
NIGHT
50°F
N 41 mph
precip
100%
03.17
tue
DAY
36°F
E 31 mph
precip
0%
NIGHT
34°F
E 30 mph
precip
0%
03.18
wed
DAY
28°F
E 17 mph
precip
0%
NIGHT
32°F
N 12 mph
precip
0%
03.19
thu
DAY
36°F
NW 17 mph
precip
55%
NIGHT
40°F
NE 16 mph
precip
0%

Nantucket Sea Water Temperature in March, °F

Select Year: 2025 2024 2023

The average sea surface temperature in March 2025 for Nantucket was 4.3°F. The maximum and minimum values were 2.3°F and 6.3°F respectively.

Nantucket on the Weather Map

Best Time to Visit Nantucket
The most sunny months:
October 13 days
June 13 days
September 13 days
The most warm months:
August 73.3 °F
July 72.9 °F
September 69.0 °F
Warmest sea temperature:
August 74.4 °F
July 72.4 °F
September 70.6 °F
The most cold months:
February 34.6 °F
January 34.9 °F
March 39.3 °F
The most rainy months:
October 4 days
January 3 days
December 3 days
The most windy months:
March 19 mph
January 19 mph
December 19 mph
more details