25.10
sun
sun
Day
54°F
N 4 mph
Precip.
5%
5%
Night
55°F
NE 11 mph
Precip.
8%
8%
26.10
mon
mon
Day
55°F
NE 17 mph
Precip.
10%
10%
Night
55°F
SE 12 mph
Precip.
10%
10%
27.10
tue
tue
Day
50°F
SW 22 mph
Precip.
5%
5%
Night
48°F
SW 12 mph
Precip.
3%
3%
28.10
wed
wed
Day
50°F
SW 8 mph
Precip.
4%
4%
Night
50°F
N 5 mph
Precip.
13%
13%
29.10
thu
thu
Day
54°F
NE 12 mph
Precip.
6%
6%
Night
57°F
NE 19 mph
Precip.
12%
12%
30.10
fri
fri
Day
55°F
E 12 mph
Precip.
14%
14%
Night
55°F
NE 14 mph
Precip.
11%
11%
31.10
sat
sat
Day
54°F
SW 12 mph
Precip.
8%
8%
Night
54°F
N 6 mph
Precip.
19%
19%
sea water
temperature
temperature
| Nantucket |
monthly
weather
weather
| Nantucket |
current
weather
weather
| Nantucket |
14 days
forecast
forecast
| Nantucket |
Sea water temperature in October, °F
Show year:
2026
2025
2024
The average sea water temperature in October of 2026 was 60.2°F. The highest and lowest sea temperatures during the month were 62.4°F and 55.9°F.
Sea water temperature in November, °F
Show year:
2025
2024
2023
The average sea water temperature in November of 2025 was 50.9°F. The highest and lowest sea temperatures during the month were 56.8°F and 46.9°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: 00:32
October 25, sunday
0300
54°F
N
1 mph
1 mph
0600
54°F
NE
3 mph
3 mph
0900
54°F
N
4 mph
4 mph
1200
54°F
N
4 mph
4 mph
1500
54°F
N
7 mph
7 mph
1800
54°F
N
9 mph
9 mph
2100
55°F
N
11 mph
11 mph
October 26, monday
0000
55°F
NE
11 mph
11 mph
