Nantucket Water Temperature

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Nantucket is a town close to Atlantic Ocean. Warm-summer humid continental climate would be the climate here. August is the month with the highest water temperature at 67.6°F / 19.8°C. The month with the lowest is February with an average water temperature of 38.1°F / 3.4°C. The avg. air temperature is around 69.6°F / 20.9°C, August is the month with the highest temperature. January is the coolest with 34°F / 1.1°C average air temperature. June is the month with the min. precipitation of 0in / 0mm and December with the max. precipitation in a year with 2.2in / 56.4mm. If you plan to visit this place, the month June, July, August, September would be the best time.

Nantucket Summary

Description Value
Current water temperature /
Warmest Month Water Temperature: August with 67.6°F / 19.8°C
Coldest Month Water Temperature: February with 38.1°F / 3.4°C
Warmest Month Air Temperature: August with 69.6°F / 20.9°C
Coldest Month Air Temperature: January with 34°F / 1.1°C
Wettest Month: December with 2.2in / 56.4mm
Driest Month: June with 0in / 0mm
Highest Humidity July with 84.1%
Lowest Humidity December with 70.7%
Best Time to Visit: June, July, August, September
Climate Classification Warm-summer humid continental climate

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Nantucket water temperature by month

Atlantic Ocean water temperature by month

Max. Water

Temperature (°F)

ø. Water

Temperature (°F)

Min. Water

Temperature (°F)

January

43 40.6 38.7

February

38.8 38.3 37.6

March

40.6 38.8 37.8

April

45.7 43 40.5

May

53.6 49.3 45.7

June

61.5 56.7 53.6

July

66.9 64.8 61.5

August

68.4 67.5 66.4

September

66.6 64.8 62.6

October

62.6 58.8 54.9

November

54.9 51.6 48.4

December

48.4 45.7 43.2

Atlantic Ocean water temperature by month

Max. Water

Temperature (°C)

ø. Water

Temperature (°C)

Min. Water

Temperature (°C)

January

6.1 4.8 3.7

February

3.8 3.5 3.1

March

4.8 3.8 3.2

April

7.6 6.1 4.7

May

12 9.6 7.6

June

16.4 13.7 12

July

19.4 18.2 16.4

August

20.2 19.7 19.1

September

19.2 18.2 17

October

17 14.9 12.7

November

12.7 10.9 9.1

December

9.1 7.6 6.2
August is the month with the highest water temperature at 67.6°F / 19.8°C. The month with the lowest is February with an average water temperature of 38.1°F / 3.4°C.

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Nantucket weather today & 14-day weather forecast

Date
Weather
Max. F
Min. F
Max. C
Min. C
Windspeed
Windir.
Precip.
Rainrisk
Rel. Humidity
Jul. 26
Few clouds
78 °F
67°F
26 °C
19°C
2mph (4km/h)
west-northwest
0in (0mm)
0 %
71%
Jul. 27
Few clouds
80 °F
68°F
27 °C
20°C
1mph (2km/h)
south
0in (0mm)
0 %
78%
Jul. 28
Light rain
77 °F
67°F
25 °C
20°C
2mph (3km/h)
east-southeast
0in (3mm)
50 %
81%
Jul. 29
Light rain
77 °F
67°F
25 °C
19°C
3mph (5km/h)
east-southeast
0in (2mm)
45 %
87%
Jul. 30
Scattered clouds
79 °F
70°F
26 °C
21°C
3mph (5km/h)
south
0in (0mm)
0 %
88%
Jul. 31
Broken clouds
80 °F
71°F
27 °C
22°C
3mph (5km/h)
south
0in (0mm)
20 %
90%
Aug. 01
Moderate rain
74 °F
71°F
23 °C
22°C
3mph (4km/h)
south-southwest
0in (6mm)
65 %
94%
Date
Weather
Max. F
Min. F
Max. C
Min. C
Windspeed
Windir.
Precip.
Rainrisk
Rel. Humidity
Aug. 02
Few clouds
75 °F
73°F
24 °C
23°C
4mph (6km/h)
southwest
0in (0mm)
0 %
91%
Aug. 03
Scattered clouds
74 °F
73°F
23 °C
23°C
5mph (8km/h)
southwest
0in (0mm)
10 %
96%
Aug. 04
Broken clouds
73 °F
73°F
23 °C
23°C
3mph (6km/h)
west-southwest
0in (0mm)
10 %
95%
Aug. 05
Few clouds
77 °F
67°F
25 °C
20°C
3mph (4km/h)
east-northeast
0in (0mm)
0 %
91%
Aug. 06
Broken clouds
78 °F
69°F
26 °C
21°C
4mph (7km/h)
south-southwest
0in (1mm)
15 %
94%
Aug. 07
Scattered clouds
78 °F
65°F
25 °C
19°C
2mph (4km/h)
south-southwest
0in (0mm)
10 %
90%
Aug. 08
Moderate rain
74 °F
64°F
24 °C
18°C
2mph (3km/h)
east-southeast
0in (6mm)
70 %
95%
Aug. 09
Broken clouds
72 °F
65°F
22 °C
18°C
3mph (4km/h)
east
0in (0mm)
20 %
85%
Aug. 10
Heavy rain
73 °F
64°F
23 °C
18°C
3mph (5km/h)
southwest
1in (32mm)
90 %
94%

Nantucket weather by month / climate table

Max.

Temperature

°F

ø.

Temperature

°F

Min.

Temperature

(°F)

Precip.

(in)

Rainy Days

(d)

Rel. Humidity

(%)

January

42.6 34 25 1.3 3 72.1%

February

41.2 34 26.6 0.8 1 70.9%

March

46.2 37.6 30.2 0.9 1 71.8%

April

51.6 44.6 37.8 0.5 3 75.9%

May

61.2 52.7 45.7 0.6 1 81.5%

June

70 61.3 54.9 0 0 84.1%

July

73.4 69.1 64.4 0 0 84.1%

August

74.1 69.6 65.3 0 0 83.2%

September

70.7 65.1 60.1 0 0 79.1%

October

64.4 56.1 46.6 0.3 0 72.9%

November

57.4 47.7 39.4 0.6 1 71.1%

December

48.9 39.9 33.4 2.2 3 70.7%

Max.

Temperature

°C

ø.

Temperature

°C

Min.

Temperature

(°C)

Precip.

(mm)

Rainy Days

(d)

Rel. Humidity

(%)

January

5.9 1.1 -3.9 34.1 3 72.1%

February

5.1 1.1 -3 21.4 1 70.9%

March

7.9 3.1 -1 23.5 1 71.8%

April

10.9 7 3.2 12.9 3 75.9%

May

16.2 11.5 7.6 14.8 1 81.5%

June

21.1 16.3 12.7 0 0 84.1%

July

23 20.6 18 0 0 84.1%

August

23.4 20.9 18.5 0 0 83.2%

September

21.5 18.4 15.6 0 0 79.1%

October

18 13.4 8.1 7.6 0 72.9%

November

14.1 8.7 4.1 15.9 1 71.1%

December

9.4 4.4 0.8 56.4 3 70.7%
The hottest avg. temperature is around 69.6°F / 20.9°C, August is the month with the highest temperature. January is the coolest with 34°F / 1.1°C average temperature. June is the month with the lowest precipitation of 0in / 0mm and December with the maximum precipitation in a year with 2.2in / 56.4mm.

Activities & POI in Nantucket

Type of Activity List
Beach Cliff Beach, Coatue Beach, South Shore, Pest House Shore, Rest House Shore, Madequecham Beach, Miacomet Beach, Nobadeer Beach, South Beach, Surfside Beach, Clean Shore, Jetties Beach, Childrens Beach
Golf Course Miacomet Golf Club
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