Long Island Sound Water Temperature

When you’re contemplating the waves as they crash on to the shore it can be difficult to remember that Long Island is a part of New York city. This exciting island is a favourite with surfers and beach lovers, and lies in the Atlantic ocean to the east of New York Harbour.
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Thanks to good transport links, you can reach Long Island from any other part of the US, and international flights make getting to the beach from further afield relatively simple. The beaches of Long Island sound are fabulous, and fans of ‘The Great Gatsby’ will adore the North Shore.

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Long Island Sound is a village close to atlantic ocean. Warm-summer humid continental climate would be the climate here. August is the month with the highest water temperature at 73.6°F / 23.1°C. The month with the lowest is February with an average water temperature of 39°F / 3.9°C. The avg. air temperature is around 73.8°F / 23.2°C, July is the month with the highest temperature. January is the coolest with 28.6°F / -1.9°C average air temperature. September is the month with the min. precipitation of 0in / 0mm and January with the max. precipitation in a year with 0.8in / 19.4mm. June, July, August, September would be the best time to visit this place.

Long Island Sound Summary

Description	Value
Current water temperature	/
Warmest Month Water Temperature:	August with 73.6°F / 23.1°C
Coldest Month Water Temperature:	February with 39°F / 3.9°C
Warmest Month Air Temperature:	July with 73.8°F / 23.2°C
Coldest Month Air Temperature:	January with 28.6°F / -1.9°C
Wettest Month:	January with 0.8in / 19.4mm
Driest Month:	September with 0in / 0mm
Highest Humidity	June with 72.5%
Lowest Humidity	March with 63.5%
Best Time to Visit:	June, July, August, September
Climate Classification	Warm-summer humid continental climate

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Long Island Sound water temperature by month

°F

atlantic ocean water temperature by month

	Max. Water Temperature (°F)	ø. Water Temperature (°F)	Min. Water Temperature (°F)
January	45	42.4	39.9
February	40.1	39.2	38.7
March	42.1	40.1	38.8
April	49.1	45.1	42.1
May	59.2	53.6	49.1
June	69.3	63.7	59.4
July	73.4	71.8	69.3
August	74.3	73.4	72.1
September	72.3	70.3	67.6
October	67.5	63.5	58.8
November	58.8	55.2	52
December	52	48.4	45.1

°C

atlantic ocean water temperature by month

	Max. Water Temperature (°C)	ø. Water Temperature (°C)	Min. Water Temperature (°C)
January	7.2	5.8	4.4
February	4.5	4	3.7
March	5.6	4.5	3.8
April	9.5	7.3	5.6
May	15.1	12	9.5
June	20.7	17.6	15.2
July	23	22.1	20.7
August	23.5	23	22.3
September	22.4	21.3	19.8
October	19.7	17.5	14.9
November	14.9	12.9	11.1
December	11.1	9.1	7.3

The warmest water temperature are in August with around 73.6°F / 23.1°C. The coldest in February with an average water temperature of 39°F / 3.9°C.

The water temperature at Long Island sound ranges from winter lows of around 35F or 1.6C in February when it is at its coldest to around 72F or 22.2C in August when it is warm enough for surfing in a surf vest and board shorts and pleasant for swimming.

The water temperature climbs steadily from the spring onwards, and South Shore in particular is a haven for surfers. You will need a wetsuit during spring and autumn, but excellent waves have made Long Island one of the most famous surfing locations in the world, and the sport is popular with locals and visitors.

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Long Island Sound 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. 19	Broken clouds	41 °F 37°F	5 °C 3°C	2mph (3km/h) west	0in (0mm) 0 %	62%
Dec. 20	Mix snow/rain	40 °F 35°F	5 °C 2°C	3mph (4km/h) northeast	0in (2mm) 50 %	79%
Dec. 21	Light snow	34 °F 24°F	1 °C -4°C	3mph (5km/h) west-northwest	0in (1mm) 50 %	67%
Dec. 22	Few clouds	28 °F 19°F	-3 °C -7°C	3mph (5km/h) west-northwest	0in (0mm) 0 %	48%
Dec. 23	Scattered clouds	33 °F 17°F	0 °C -8°C	1mph (2km/h) southwest	0in (0mm) 0 %	52%
Dec. 24	Overcast clouds	38 °F 27°F	4 °C -3°C	1mph (2km/h) west	0in (0mm) 0 %	67%
Dec. 25	Few clouds	41 °F 33°F	5 °C 0°C	2mph (3km/h) east-northeast	0in (0mm) 0 %	73%

+9-day forecast

Date	Weather	Max. F Min. F	Max. C Min. C	Windspeed Windir.	Precip. Rainrisk	Rel. Humidity
Dec. 26	Mix snow/rain	43 °F 37°F	6 °C 3°C	2mph (3km/h) northeast	0in (0mm) 10 %	82%
Dec. 27	Overcast clouds	47 °F 39°F	9 °C 4°C	2mph (4km/h) north-northeast	0in (1mm) 25 %	78%
Dec. 28	Overcast clouds	49 °F 44°F	9 °C 7°C	3mph (4km/h) northeast	0in (0mm) 0 %	76%
Dec. 29	Moderate rain	59 °F 43°F	15 °C 6°C	3mph (5km/h) west-northwest	1in (15mm) 90 %	68%
Dec. 30	Heavy rain	56 °F 50°F	13 °C 10°C	4mph (6km/h) south-southeast	1in (31mm) 95 %	89%
Dec. 31	Light shower rain	44 °F 42°F	7 °C 5°C	3mph (5km/h) west-southwest	0in (4mm) 65 %	76%
Jan. 01	Scattered clouds	44 °F 39°F	7 °C 4°C	3mph (4km/h) northwest	0in (0mm) 0 %	67%
Jan. 02	Clear Sky	42 °F 37°F	6 °C 3°C	3mph (5km/h) north-northwest	0in (0mm) 0 %	64%
Jan. 03	Few clouds	44 °F 35°F	7 °C 2°C	2mph (3km/h) northeast	0in (0mm) 0 %	69%

Long Island Sound weather by month / climate table

°F

	Max. Temperature °F	ø. Temperature °F	Min. Temperature (°F)	Precip. (in)	Rainy Days (d)	Rel. Humidity (%)
January	40.3	28.6	17.4	0.8	1	64.9%
February	41.4	30.2	21	0.2	0	64.3%
March	52.9	37.2	24.8	0.2	1	63.5%
April	61.3	47.7	34.2	0.5	1	64.7%
May	74.5	57.6	44.8	0.5	1	71.1%
June	82	67.1	54.9	0.6	0	72.5%
July	85.3	73.8	64.9	0.1	0	68.3%
August	83.7	72.5	62.4	0.2	1	70.8%
September	79	66.4	56.7	0	0	71.9%
October	68	54.7	42.8	0.1	0	71.1%
November	59.4	44.6	34.9	0	0	69.2%
December	46.4	35.4	27.7	0.2	1	68.5%

°C

	Max. Temperature °C	ø. Temperature °C	Min. Temperature (°C)	Precip. (mm)	Rainy Days (d)	Rel. Humidity (%)
January	4.6	-1.9	-8.1	19.4	1	64.9%
February	5.2	-1	-6.1	4	0	64.3%
March	11.6	2.9	-4	5.7	1	63.5%
April	16.3	8.7	1.2	11.9	1	64.7%
May	23.6	14.2	7.1	13.7	1	71.1%
June	27.8	19.5	12.7	14.6	0	72.5%
July	29.6	23.2	18.3	2.6	0	68.3%
August	28.7	22.5	16.9	4.4	1	70.8%
September	26.1	19.1	13.7	0	0	71.9%
October	20	12.6	6	3.1	0	71.1%
November	15.2	7	1.6	0	0	69.2%
December	8	1.9	-2.4	5	1	68.5%

September is the driest at 0in / 0mm and January the wettest month with 0.8in / 19.4mm. With an average temperature of 73.8°F / 23.2°C, July is the warmest month in a year. January is the coldest with 28.6°F / -1.9°C average temperature.

Best time to visit Long Island

Hot summer days and excellent surf conditions make Long Island a terrific beach holiday destination. Cold winters are to be expected in the north east of the US, but thanks to its coastal location Long Island temperatures are slightly higher than other areas of New York State. Temperatures range from 35F or 2C in January to 80F or 27C in July. It is rare for temperatures to drop below 5F or -15C or rise higher than 95F or 35C. Take light clothing for summer and wrap up warmly and be ready for snow if you visit Long Island in winter.

The top attractions in Long Island

Although it is an island, the area is one of the most densely populated in New York state and its size means that there is much to discover. As well as excellent beach areas like North Shore and the Hamptons, there are plenty of picturesque towns along the coast such as Huntington Village and Port Jefferson where chic restaurants and quirky one off boutiques and stores are a delightful way to spend an afternoon.

If shopping is your thing, a visit to the Miracle Mile shopping resort in Manhasset is essential. Take a trip to the North Fork to discover the scenic wine country, or enjoy a day at Long Island’s main amusement park, Adventureland in Farmingdale.

Picture Copyright Flickr CC 2.0 RealMattKane

atlantic ocean