Nantucket Water Temperature

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Nantucket is a town close to Atlantic Ocean. August is the month with the highest water temperature at 67.6°F / 19.8°C.
The coldest month is February with an average water temperature of 38.1°F / 3.4°C.
June is the driest at 0in / 0mm and December the wettest month with 2.2in / 56.4mm.
With an average air temperature of 69.6°F / 20.9°C, August is the warmest month in a year. January is the coldest with 34°F / 1.1°C average air temperature.
The Climate is described as Warm-summer humid continental climate. Best time to Visit would be in June, July, August, September.

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

°F

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

°C

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

The warmest water temperature are in August with around 67.6°F / 19.8°C. The coldest in February with an average water temperature of 38.1°F / 3.4°C.

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Nantucket weather today & 14-day weather forecast

7-day weather forecast
+9-day forecast

7-day weather forecast

Date	Weather	Max. F Min. F	Max. C Min. C	Windspeed Windir.	Precip. Rainrisk	Rel. Humidity
Dec. 21	Mix snow/rain	36 °F 24°F	2 °C -4°C	4mph (7km/h) west-northwest	0in (2mm) 55 %	78%
Dec. 22	Broken clouds	28 °F 19°F	-3 °C -7°C	4mph (6km/h) north-northwest	0in (0mm) 0 %	72%
Dec. 23	Overcast clouds	42 °F 24°F	5 °C -4°C	2mph (3km/h) west-northwest	0in (0mm) 0 %	69%
Dec. 24	Mix snow/rain	46 °F 34°F	8 °C 1°C	2mph (4km/h) west-southwest	0in (4mm) 70 %	78%
Dec. 25	Mix snow/rain	41 °F 34°F	5 °C 1°C	3mph (4km/h) north	0in (3mm) 60 %	79%
Dec. 26	Broken clouds	44 °F 36°F	7 °C 2°C	3mph (5km/h) north	0in (0mm) 0 %	76%
Dec. 27	Broken clouds	45 °F 41°F	7 °C 5°C	6mph (10km/h) north-northeast	0in (0mm) 20 %	81%

+9-day forecast

Date	Weather	Max. F Min. F	Max. C Min. C	Windspeed Windir.	Precip. Rainrisk	Rel. Humidity
Dec. 28	Overcast clouds	46 °F 45°F	8 °C 7°C	6mph (9km/h) northeast	0in (1mm) 35 %	95%
Dec. 29	Overcast clouds	46 °F 45°F	8 °C 7°C	6mph (10km/h) northeast	0in (1mm) 40 %	94%
Dec. 30	Overcast clouds	48 °F 46°F	9 °C 8°C	7mph (11km/h) east-northeast	0in (2mm) 45 %	92%
Dec. 31	Overcast clouds	50 °F 45°F	10 °C 7°C	8mph (12km/h) east	0in (0mm) 15 %	92%
Jan. 01	Heavy rain	50 °F 47°F	10 °C 8°C	8mph (12km/h) east-southeast	1in (20mm) 90 %	98%
Jan. 02	Light shower rain	47 °F 44°F	8 °C 7°C	3mph (5km/h) west	0in (3mm) 55 %	95%
Jan. 03	Broken clouds	45 °F 40°F	7 °C 5°C	5mph (9km/h) west	0in (0mm) 0 %	81%
Jan. 04	Light shower rain	42 °F 40°F	6 °C 5°C	5mph (8km/h) northwest	0in (2mm) 50 %	74%
Jan. 05	Few clouds	40 °F 35°F	5 °C 2°C	4mph (6km/h) west-northwest	0in (0mm) 0 %	64%

Nantucket weather by month / climate table

°F

	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%

°C

	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%

June is the month with the lowest rain of 0in / 0mm and December with the highest precipitation in a year with 2.2in / 56.4mm. The 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.

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

atlantic ocean