Current sea water temperature:
+34.0°F
| Minimum sea water temperature in February: | 42.3°F |
| Maximum sea water temperature in February: | 32.4°F |
| Average sea water temperature in February: | 38.0°F |
| more information | |
14 days
forecast
forecast
| Nantucket |
monthly
weather
weather
| Nantucket |
Sea water temperature for the last 10 days:
| February 4 | 34.0°F | January 30 | 34.3°F |
| February 3 | 34.7°F | January 29 | 36.0°F |
| February 2 | 33.8°F | January 28 | 35.6°F |
| February 1 | 33.4°F | January 27 | 36.7°F |
| January 31 | 32.9°F | January 26 | 36.3°F |
Monthly sea water temperature, °F
When is the warmest sea in Nantucket?
Based on the data about daily sea water temperature for the last three years the warmest sea in Nantucket was noticed in August, July and September.
Monthly Sea Temperatures in Nantucket, °F
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 69.7°F. The highest and lowest sea temperatures during the month were 73.2°F and 67.6°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 68.7°F. The highest and lowest sea temperatures during the month were 72.9°F and 63.9°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 67.7°F. The highest and lowest sea temperatures during the month were 69.4°F and 66.4°F.
current
weather
weather
| Nantucket |
weather in
February
February
| Nantucket |
Best time for vacation in Nantucket
Nantucket on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Nantucket
Local time: 14:53
February 04, wednesday
1500
32°F
SE
20 mph
20 mph
1800
28°F
SE
16 mph
16 mph
2100
23°F
SE
17 mph
17 mph
February 05, thursday
0000
25°F
SE
13 mph
13 mph
0300
27°F
SE
9 mph
9 mph
0600
27°F
SE
9 mph
9 mph
0900
27°F
E
8 mph
8 mph
1200
28°F
E
11 mph
11 mph
