Measurements:
°C
°F
CURRENT WEATHER
15:10
Nantucket
86°F
E 22 mph
Feels like: 94°F
Precip: 7%
World Resorts USA Nantucket Weather

14 Day Weather Forecast

07.15
wed
DAY
88°F
E 22 mph
precip
6%
NIGHT
74°F
S 4 mph
precip
5%
07.16
thu
DAY
76°F
NE 16 mph
precip
8%
NIGHT
76°F
S 5 mph
precip
6%
07.17
fri
DAY
76°F
S 4 mph
precip
3%
NIGHT
74°F
NE 15 mph
precip
6%
07.18
sat
DAY
74°F
NE 19 mph
precip
11%
NIGHT
76°F
NE 31 mph
precip
21%
07.19
sun
DAY
76°F
NE 28 mph
precip
26%
NIGHT
76°F
NE 7 mph
precip
5%
07.20
mon
DAY
74°F
E 7 mph
precip
3%
NIGHT
74°F
NE 14 mph
precip
8%
07.21
tue
DAY
76°F
N 24 mph
precip
29%
NIGHT
74°F
E 16 mph
precip
14%
07.22
wed
DAY
68°F
NE 16 mph
precip
8%
NIGHT
70°F
NE 4 mph
precip
4%
07.23
thu
DAY
72°F
W 9 mph
precip
4%
NIGHT
70°F
W 14 mph
precip
13%
07.24
fri
DAY
70°F
SE 8 mph
precip
19%
NIGHT
74°F
NE 18 mph
precip
13%
07.25
sat
DAY
74°F
N 29 mph
precip
41%
NIGHT
74°F
SE 19 mph
precip
12%
07.26
sun
DAY
68°F
E 16 mph
precip
4%
NIGHT
72°F
E 22 mph
precip
4%
07.27
mon
DAY
70°F
E 14 mph
precip
4%
NIGHT
74°F
NE 21 mph
precip
8%
07.28
tue
DAY
74°F
NE 6 mph
precip
6%
NIGHT
74°F
NE 14 mph
precip
8%

Nantucket Sea Water Temperature in July, °F

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Nantucket was 71.3°F. The maximum and minimum values were 68.6°F and 74.2°F respectively.

Nantucket on the Weather Map

Best Time to Visit Nantucket
The most sunny months:
June 14 days
October 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 39.7 °F
The most rainy months:
October 4 days
January 3 days
December 3 days
The most windy months:
January 19 mph
March 19 mph
December 19 mph
more details
USA Resorts:
NAME
F°
Boston +92
Chicago +86
Hawaii +80
Houston +80
Las Vegas +120
Los Angeles +106
Maui +76
Miami +96
Myrtle Beach +96
New York +110
San Diego +96
San Francisco +76
Santa Monica +84
Sarasota +102
Tampa +100
all resorts
24 Hours Weather Forecast
Nantucket
Local time: 15:10
15 jul, wednesday
1800 82°F
SE
8 mph
2100 78°F
S
9 mph
16 jul, thursday
0000 74°F
S
4 mph
0300 78°F
NE
9 mph
0600 78°F
NE
12 mph
0900 76°F
NE
16 mph
1200 76°F
NE
16 mph
1500 76°F
NE
21 mph