Climate and monthly weather forecast
Old Saybrook, CT

Weather in January

January, the same as December, is another cold winter month in Old Saybrook, Connecticut, with an average temperature fluctuating between 35.2°F (1.8°C) and 25.5°F (-3.6°C). The coldest month is January, with an average high-temperature of 35.2°F (1.8°C) and an average low-temperature of 25.5°F (-3.6°C). Weather in January »

Weather in February

February, the last month of the winter in Old Saybrook, is another cold month, with an average temperature varying between 26.2°F (-3.2°C) and 37.9°F (3.3°C). In February, the average high-temperature is relatively the same as in January - a still cold 37.9°F (3.3°C). Weather in February »

Weather in March

March, the first month of the spring in Old Saybrook, is a frosty month, with temperature in the range of an average low of 32.5°F (0.3°C) and an average high of 43.7°F (6.5°C). In Old Saybrook, the average high-temperature in March marginally rises from a wintry 37.9°F (3.3°C) in February to a frosty 43.7°F (6.5°C). Weather in March »

Weather in April

April in Old Saybrook, Connecticut, is a cool spring month, with temperature in the range of an average low of 41.7°F (5.4°C) and an average high of 54.3°F (12.4°C). In Old Saybrook, the average high-temperature in April rises from a chilly 43.7°F (6.5°C) in March to a cool 54.3°F (12.4°C). Weather in April »

Weather in May

May, the last month of the spring in Old Saybrook, is a comfortable month, with temperature in the range of an average high of 64.9°F (18.3°C) and an average low of 50.7°F (10.4°C). In Old Saybrook, the average high-temperature in May rises from a fresh 54.3°F (12.4°C) in April to a comfortable 64.9°F (18.3°C). Weather in May »

Weather in June

June, the first month of the summer in Old Saybrook, is a pleasant month, with temperature in the range of an average low of 58.8°F (14.9°C) and an average high of 73°F (22.8°C). In Old Saybrook, the average high-temperature in June slightly increases from a comfortable 64.9°F (18.3°C) in May to an agreeable 73°F (22.8°C). Weather in June »

Weather in July

July in Old Saybrook, Connecticut, is a warm summer month, with temperature in the range of an average high of 79.7°F (26.5°C) and an average low of 66.6°F (19.2°C). With an average high-temperature of 79.7°F (26.5°C) and an average low-temperature of 66.6°F (19.2°C), July is the warmest month. Weather in July »

Weather in August

August, the last month of the summer in Old Saybrook, is also a moderately hot month, with temperature in the range of an average high of 78.6°F (25.9°C) and an average low of 65.7°F (18.7°C). In August, the average high-temperature is essentially the same as in July - a still warm 78.6°F (25.9°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a pleasant month in Old Saybrook, Connecticut, with an average temperature varying between 72.3°F (22.4°C) and 59.5°F (15.3°C). In Old Saybrook, the average high-temperature in September slightly decreases from a moderately hot 78.6°F (25.9°C) in August to a pleasant 72.3°F (22.4°C). Weather in September »

Weather in October

October, the same as September, is another comfortable autumn month in Old Saybrook, Connecticut, with an average temperature fluctuating between 61.9°F (16.6°C) and 50.5°F (10.3°C). In Old Saybrook, Connecticut, the average high-temperature in October drops from a pleasant 72.3°F (22.4°C) in September to an enjoyable 61.9°F (16.6°C). Weather in October »

Weather in November

November, the last month of the autumn in Old Saybrook, is also a fresh month, with temperature in the range of an average high of 50.7°F (10.4°C) and an average low of 39.9°F (4.4°C). In November, the average high-temperature drops from a comfortable 61.9°F (16.6°C) in October to a cool 50.7°F (10.4°C). Weather in November »

Weather in December

The first month of the winter, December, is also a wintry month in Old Saybrook, Connecticut, with temperature in the range of an average high of 41.9°F (5.5°C) and an average low of 32.4°F (0.2°C). In December, the average high-temperature slightly decreases from a cool 50.7°F (10.4°C) in November to a cold 41.9°F (5.5°C). Weather in December »
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FAQ

What is the coldest month in Old Saybrook?

With an average high-temperature of 35.2°F (1.8°C) and an average low-temperature of 25.5°F (-3.6°C), January is the coldest month.

How much does it rain in Old Saybrook?

Throughout the year, in Old Saybrook, there are 166.2 rainfall days, and 34.8" (884mm) of precipitation is accumulated.

When does it snow in Old Saybrook?

January through May, November and December are months with snowfall.

How many days does it snow in Old Saybrook?

Throughout the year, there are 24.2 snowfall days, and 9.53" (242mm) of snow is accumulated.

What is the month with the lowest UV index in Old Saybrook?

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Old Saybrook.

When is the ocean coldest in Old Saybrook?

February is the month with the coldest seawater in Old Saybrook, with an average ocean temperature of 38.8°F (3.8°C).

What is the month with the least sunshine in Old Saybrook?

February and December, with an average of 4.8h of sunshine, are months with the least sunshine.

What is the snowiest month in Old Saybrook?

The month with the most snowfall in Old Saybrook, Connecticut, is March, when snow falls for 4.7 days and typically aggregates up to 2.76" (70mm) of snow.

When is Daylight Saving Time (DST) in Old Saybrook?

On Sunday, March 13. 2022, at 2:00 am, Daylight Saving Time starts in Old Saybrook, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 6. 2022, at 2:00 am, and the time zone reverts from EDT to EST.

What is the least humid month in Old Saybrook?

With an average relative humidity of 73%, April is the least humid month.

What is the most humid month in Old Saybrook?

The months with the highest humidity are May through July, with an average relative humidity of 78%.

When it does not snow in Old Saybrook?

In Old Saybrook, Connecticut, snow does not fall in June through October.

When are the longest days in Old Saybrook?

With an average of 15h and 7min of daylight, June has the longest days of the year in Old Saybrook.

What is the month with the highest UV index in Old Saybrook?

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

What is the warmest month in Old Saybrook?

The warmest month is July, with an average high-temperature of 79.7°F (26.5°C) and an average low-temperature of 66.6°F (19.2°C).

When is the ocean warmest in Old Saybrook?

With an average ocean temperature of 72.1°F (22.3°C), August is the month with the warmest seawater in Old Saybrook, Connecticut.

What month has the most sunshine in Old Saybrook?

The month with the most sunshine is August, with an average of 10.6h of sunshine.

What is the driest month in Old Saybrook?

September is the month with the least rainfall. Rain falls for 13 days and accumulates 1.93" (49mm) of precipitation.

What is the wettest month in Old Saybrook?

The month with the most rainfall in Old Saybrook, Connecticut, is December, when the rain falls for 13 days and typically aggregates up to 3.66" (93mm) of precipitation.

What is the month with the shortest days in Old Saybrook?

With an average of 9h and 15min of daylight, December has the shortest days of the year in Old Saybrook, Connecticut.

Average temperature
Old Saybrook, CT

Average temperature - Old Saybrook, CT

The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (35.2°F).

The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (25.5°F).

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Average pressure
Old Saybrook, CT

Average pressure - Old Saybrook, CT

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

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Average wind speed
Old Saybrook, CT

Average wind speed - Old Saybrook, CT

The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).

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Average humidity
Old Saybrook, CT

Average humidity - Old Saybrook, CT

The months with the highest relative humidity are May, June and July (78%).
The month with the lowest relative humidity is April (73%).

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Average rainfall
Old Saybrook, CT

Average rainfall - Old Saybrook, CT

The wettest month (with the highest rainfall) is December (3.66").
The driest month (with the least rainfall) is September (1.93").

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Average rainfall days
Old Saybrook, CT

Average rainfall days - Old Saybrook, CT

The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is January (9 days).

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Average snowfall
Old Saybrook, CT

Average snowfall - Old Saybrook, CT

The month with the highest snowfall is March (2.76").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days
Old Saybrook, CT

Average snowfall days - Old Saybrook, CT

The month with the highest number of snowfall days is February (7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average sea temperature
Old Saybrook, CT

Average sea temperature - Old Saybrook, CT

The best month for swimming (with the highest average sea temperature) is August (72.1°F).
The coldest month (with the lowest average sea temperature) is February (38.8°F).

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Average daylight / Average sunshine
Old Saybrook, CT

Average daylight / Average sunshine - Old Saybrook, CT

The month with the longest days is June (Average daylight: 15h and 7min).
The month with the shortest days is December (Average daylight: 9h and 15min).

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).

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Average sunshine days
Old Saybrook, CT

Average sunshine days - Old Saybrook, CT

The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is July (11.7 days).

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Average UV index
Old Saybrook, CT

Average UV index - Old Saybrook, CT

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, November and December (UV index 2).

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Average visibility
Old Saybrook, CT

Average visibility - Old Saybrook, CT

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).

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