Climate and monthly weather forecast
Sag Harbor, NY

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Weather in January

January, the same as December, is an icy winter month in Sag Harbor, New York, with temperature in the range of an average high of 38.8°F (3.8°C) and an average low of 31.3°F (-0.4°C). The coldest month is January, with an average high-temperature of 38.8°F (3.8°C) and an average low-temperature of 31.3°F (-0.4°C). Weather in January »

Weather in February

The last month of the winter, February, is another cold month in Sag Harbor, New York, with an average temperature ranging between min 31.5°F (-0.3°C) and max 39.6°F (4.2°C). Sag Harbor's weather, upon February's arrival, documents an average high-temperature of a still wintry 39.6°F (4.2°C), nearly identical to the prior month. Weather in February »

Weather in March

The first month of the spring, March, is a chilly month in Sag Harbor, New York, with temperature in the range of an average high of 43°F (6.1°C) and an average low of 36.1°F (2.3°C). Welcoming March, Sag Harbor notes an average high-temperature of a frosty 43°F (6.1°C), nearly consistent with February's 39.6°F (4.2°C). Weather in March »

Weather in April

April in Sag Harbor, New York, is a fresh spring month, with temperature in the range of an average high of 50°F (10°C) and an average low of 44.2°F (6.8°C). The onset of April introduces a subtle rise in the average high-temperature, nudging from a chilly 43°F (6.1°C) in March to a fresh 50°F (10°C). Weather in April »

Weather in May

May, the last month of the spring in Sag Harbor, is a refreshing month, with temperature in the range of an average low of 52.7°F (11.5°C) and an average high of 58.6°F (14.8°C). As April transitions into May, Sag Harbor notices a gentle rise in the average high-temperature, transitioning from a cool 50°F (10°C) to a refreshing 58.6°F (14.8°C). Weather in May »

Weather in June

June, the first month of the summer in Sag Harbor, is a comfortable month, with temperature in the range of an average low of 62.6°F (17°C) and an average high of 67.6°F (19.8°C). With the arrival of June, the average high-temperature transitions from a moderate 58.6°F (14.8°C) in May to an enjoyable 67.6°F (19.8°C). Weather in June »

Weather in July

July is a warm summer month in Sag Harbor, New York, with an average temperature fluctuating between 70.3°F (21.3°C) and 75.7°F (24.3°C). The onset of July introduces a subtle rise in the average high-temperature, nudging from a refreshing 67.6°F (19.8°C) in June to a moderately hot 75.7°F (24.3°C). Weather in July »

Weather in August

August, the last month of the summer in Sag Harbor, is another warm month, with an average temperature ranging between min 71.2°F (21.8°C) and max 75.9°F (24.4°C). August is the month when Sag Harbor sees the highest average temperatures, with a high of 75.9°F (24.4°C) and a low of 71.2°F (21.8°C). Weather in August »

Weather in September

The first month of the autumn, September, is also an agreeable month in Sag Harbor, New York, with an average temperature fluctuating between 70.7°F (21.5°C) and 65.1°F (18.4°C). Transitioning into September, Sag Harbor experiences an average high-temperature of a pleasant 70.7°F (21.5°C), marking a minor shift from the preceding month. Weather in September »

Weather in October

October, like September, in Sag Harbor, New York, is another refreshing autumn month, with an average temperature ranging between min 56.3°F (13.5°C) and max 62.4°F (16.9°C). In October, the average high-temperature marginally decreases from a pleasant 70.7°F (21.5°C) in September to an enjoyable 62.4°F (16.9°C). Weather in October »

Weather in November

November, the last month of the autumn in Sag Harbor, is also a fresh month, with an average temperature fluctuating between 45.5°F (7.5°C) and 52.7°F (11.5°C). Transition into November marks a drop in the average high-temperature, moving from an enjoyable 62.4°F (16.9°C) in October to a cool 52.7°F (11.5°C). Weather in November »

Weather in December

December, the first month of the winter in Sag Harbor, is also a frosty month, with an average temperature ranging between min 37.9°F (3.3°C) and max 45°F (7.2°C). With the onset of December, Sag Harbor experiences a modest temperature adjustment, with the average high-temperature gently receding from a cool 52.7°F (11.5°C) in November to a chilly 45°F (7.2°C). Weather in December »
Updated: Jun 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest?

Sag Harbor experiences its average lowest temperatures in January, reaching a peak of 38.8°F (3.8°C) and a minimum of 31.3°F (-0.4°C).

How much does it rain?

Throughout the year, there are 154.1 rainfall days, and 34.92" (887mm) of precipitation is accumulated.

When does it snow?

Months with snowfall are January through March, November and December.

How much does it snow in Sag Harbor?

Throughout the year, in Sag Harbor, there are 13.9 snowfall days, and 6.61" (168mm) of snow is accumulated.

What is the month with the lowest UV index?

The months with the lowest UV index are January through March and December, with an average maximum UV index of 2.

What month is the ocean coldest?

With an average ocean temperature of 39.7°F (4.3°C), February is the month with the coldest seawater in Sag Harbor.

When does it snow the most?

The month with the most snowfall in Sag Harbor is March, when snow falls for 3 days and typically aggregates up to 2.36" (60mm) of snow.

When is Daylight Saving Time (DST)?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.

When it does not snow?

In Sag Harbor, snow does not fall in April through October.

What is the most humid month?

May and June, with an average relative humidity of 81%, are most humid months in Sag Harbor.

When are the longest days?

The month with the longest days is June, with an average of 15h and 6min of daylight.

What are the months with the highest UV index?

June through August, with an average maximum UV index of 6, are months with the highest UV index.

What is the month with the most sunshine?

The months with the most sunshine in Sag Harbor are July and August, with an average of 10.6h of sunshine.

What is the warmest month?

August brings the highest temperatures, with an average high of 75.9°F (24.4°C) and an average low of 71.2°F (21.8°C).

What is the month with the warmest ocean?

The month with the warmest seawater is August, with an average ocean temperature of 73.2°F (22.9°C).

What is the driest month?

The month with the least rainfall is September, when the rain falls for 12.6 days and typically collects 2.17" (55mm) of precipitation.

What is the least humid month?

The least humid month is November, with an average relative humidity of 72%.

What is the wettest month?

December is the month with the most rainfall. Rain falls for 12.8 days and accumulates 3.82" (97mm) of precipitation.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 18min of daylight.

What is the month with the least sunshine?

December has the least sunshine of the year, with an average of 4.6h of sunshine.

Average temperature
Sag Harbor, NY

Average temperature - Sag Harbor, NY

The warmest month (with the highest average high temperature) is August (75.9°F).
The month with the lowest average high temperature is January (38.8°F).

The month with the highest average low temperature is August (71.2°F).
The coldest month (with the lowest average low temperature) is January (31.3°F).

Average pressure
Sag Harbor, NY

Average pressure - Sag Harbor, NY

The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed
Sag Harbor, NY

Average wind speed - Sag Harbor, NY

The windiest month (with the highest average wind speed) is January (16mph).
The calmest month (with the lowest average wind speed) is July (10.4mph).

Average humidity
Sag Harbor, NY

Average humidity - Sag Harbor, NY

The months with the highest relative humidity are May and June (81%).
The month with the lowest relative humidity is November (72%).

Average rainfall
Sag Harbor, NY

Average rainfall - Sag Harbor, NY

The wettest month (with the highest rainfall) is December (3.82").
The driest month (with the least rainfall) is September (2.17").

Average rainfall days
Sag Harbor, NY

Average rainfall days - Sag Harbor, NY

The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (9.1 days).

Average snowfall
Sag Harbor, NY

Average snowfall - Sag Harbor, NY

The month with the highest snowfall is March (2.36").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days
Sag Harbor, NY

Average snowfall days - Sag Harbor, NY

The month with the highest number of snowfall days is January (4.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average sea temperature
Sag Harbor, NY

Average sea temperature - Sag Harbor, NY

The best month for swimming (with the highest average sea temperature) is August (73.3°F).
The coldest month (with the lowest average sea temperature) is February (39.8°F).

Average daylight / Average sunshine
Sag Harbor, NY

Average daylight / Average sunshine - Sag Harbor, NY

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

The months with the most sunshine are July and August (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).

Average sunshine days
Sag Harbor, NY

Average sunshine days - Sag Harbor, NY

The month with the most sunshine days is November (16.8 days).
The month with the least sunshine days is February (12.8 days).

Average UV index
Sag Harbor, NY

Average UV index - Sag Harbor, NY

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March and December (UV index 2).

Average visibility
Sag Harbor, NY

Average visibility - Sag Harbor, NY

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

Sag Harbor, New York, USA

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