17.03
tue
tue
Day
39°F
E 34 mph
Precip.
0%
0%
Night
34°F
SE 24 mph
Precip.
0%
0%
18.03
wed
wed
Day
30°F
SE 11 mph
Precip.
0%
0%
Night
34°F
NW 8 mph
Precip.
0%
0%
19.03
thu
thu
Day
37°F
NW 9 mph
Precip.
0%
0%
Night
37°F
N 5 mph
Precip.
0%
0%
20.03
fri
fri
Day
39°F
NE 8 mph
Precip.
0%
0%
Night
41°F
NE 16 mph
Precip.
0%
0%
21.03
sat
sat
Day
43°F
SW 7 mph
Precip.
0%
0%
Night
41°F
NW 15 mph
Precip.
0%
0%
22.03
sun
sun
Day
48°F
N 33 mph
Precip.
0%
0%
Night
46°F
E 25 mph
Precip.
100%
100%
23.03
mon
mon
Day
36°F
SE 27 mph
Precip.
0%
0%
Night
30°F
SE 35 mph
Precip.
0%
0%
24.03
tue
tue
Day
34°F
SE 15 mph
Precip.
0%
0%
Night
39°F
NE 22 mph
Precip.
0%
0%
25.03
wed
wed
Day
43°F
N 16 mph
Precip.
100%
100%
Night
46°F
NE 26 mph
Precip.
100%
100%
26.03
thu
thu
Day
43°F
SW 12 mph
Precip.
45%
45%
Night
45°F
NW 16 mph
Precip.
100%
100%
27.03
fri
fri
Day
46°F
SE 13 mph
Precip.
100%
100%
Night
46°F
E 11 mph
Precip.
0%
0%
28.03
sat
sat
Day
36°F
E 21 mph
Precip.
100%
100%
Night
36°F
SW 21 mph
Precip.
0%
0%
29.03
sun
sun
Day
36°F
SW 13 mph
Precip.
100%
100%
Night
34°F
E 18 mph
Precip.
100%
100%
30.03
mon
mon
Day
32°F
SE 29 mph
Precip.
81%
81%
Night
34°F
SE 19 mph
Precip.
0%
0%
sea water
temperature
temperature
| Nantucket |
monthly
weather
weather
| Nantucket |
current
weather
weather
| Nantucket |
7 days
forecast
forecast
| Nantucket |
Sea water temperature in March, °F
Show year:
2026
2025
2024
The average sea water temperature in March of 2026 was 38.4°F. The highest and lowest sea temperatures during the month were 41.4°F and 36.1°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
Nantucket on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Nantucket
Local time: 02:04
March 17, tuesday
0300
55°F
N
43 mph
43 mph
0600
45°F
NE
29 mph
29 mph
0900
39°F
E
37 mph
37 mph
1200
39°F
E
34 mph
34 mph
1500
39°F
E
30 mph
30 mph
1800
37°F
E
28 mph
28 mph
2100
37°F
E
25 mph
25 mph
March 18, wednesday
0000
34°F
SE
24 mph
24 mph
