Nantucket Water Temperature

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

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

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

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
Nov. 21	Heavy rain	53 °F 47°F	12 °C 8°C	4mph (6km/h) east	1in (17mm) 90 %	94%
Nov. 22	Heavy rain	54 °F 44°F	12 °C 7°C	3mph (5km/h) south-southeast	1in (21mm) 90 %	79%
Nov. 23	Heavy rain	51 °F 44°F	11 °C 6°C	4mph (7km/h) west-northwest	1in (19mm) 90 %	82%
Nov. 24	Scattered clouds	53 °F 43°F	12 °C 6°C	5mph (9km/h) west-northwest	0in (1mm) 45 %	69%
Nov. 25	Scattered clouds	52 °F 42°F	11 °C 6°C	3mph (5km/h) west	0in (0mm) 0 %	72%
Nov. 26	Overcast clouds	52 °F 47°F	11 °C 8°C	3mph (4km/h) southwest	0in (1mm) 30 %	86%
Nov. 27	Overcast clouds	47 °F 41°F	8 °C 5°C	3mph (5km/h) northwest	0in (0mm) 10 %	71%

+9-day forecast

Date	Weather	Max. F Min. F	Max. C Min. C	Windspeed Windir.	Precip. Rainrisk	Rel. Humidity
Nov. 28	Heavy rain	44 °F 40°F	7 °C 5°C	5mph (9km/h) northeast	1in (21mm) 90 %	82%
Nov. 29	Light shower rain	42 °F 40°F	5 °C 4°C	5mph (9km/h) south-southwest	0in (3mm) 60 %	71%
Nov. 30	Broken clouds	43 °F 38°F	6 °C 3°C	5mph (8km/h) west-northwest	0in (0mm) 0 %	55%
Dec. 01	Moderate rain	51 °F 38°F	11 °C 3°C	6mph (10km/h) south-southwest	0in (12mm) 85 %	72%
Dec. 02	Heavy rain	40 °F 35°F	5 °C 2°C	11mph (19km/h) west	1in (25mm) 90 %	54%
Dec. 03	Light shower rain	35 °F 35°F	2 °C 1°C	8mph (12km/h) west-northwest	0in (2mm) 50 %	59%
Dec. 04	Mix snow/rain	47 °F 33°F	8 °C 0°C	5mph (9km/h) west	0in (0mm) 20 %	66%
Dec. 05	Light shower rain	56 °F 44°F	13 °C 7°C	5mph (8km/h) west-southwest	0in (2mm) 55 %	77%
Dec. 06	Overcast clouds	53 °F 44°F	12 °C 7°C	7mph (11km/h) east-southeast	0in (1mm) 30 %	86%

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