Southport
Connecticut, USA
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Southport, CT

January, the same as December, is another cold winter month in Southport, Connecticut, with average temperature fluctuating between 26.6°F (-3°C) and 36.1°F (2.3°C). The coldest month is January, with an average high-temperature of 36.1°F (2.3°C) and an average low-temperature of 26.6°F (-3°C). Weather in January »

February, the last month of the winter, in Southport, is another cold month, with average temperature varying between 27.7°F (-2.4°C) and 38.3°F (3.5°C). In Southport, the average high-temperature in February is practically the same as in January - a still wintry 38.3°F (3.5°C). Weather in February »

March, the first month of the spring, in Southport, is a frosty month, with average temperature varying between 44.2°F (6.8°C) and 34°F (1.1°C). In March, the average high-temperature slightly increases, from a cold 38.3°F (3.5°C) in February, to a chilly 44.2°F (6.8°C). Weather in March »

April in Southport, Connecticut, is a cool spring month, with average temperature varying between 43.2°F (6.2°C) and 54.7°F (12.6°C). In April, the average high-temperature increases, from a chilly 44.2°F (6.8°C) in March, to a cool 54.7°F (12.6°C). Weather in April »

The last month of the spring, May, is a comfortable month in Southport, Connecticut, with average temperature fluctuating between 52.5°F (11.4°C) and 64.9°F (18.3°C). In Southport, the average high-temperature increases, from a cool 54.7°F (12.6°C) in April, to a comfortable 64.9°F (18.3°C). Weather in May »

The first month of the summer, June, is a moderately hot month in Southport, Connecticut, with average temperature fluctuating between 73.8°F (23.2°C) and 61.2°F (16.2°C). In June, the average high-temperature slightly increases, from an enjoyable 64.9°F (18.3°C) in May, to a moderately hot 73.8°F (23.2°C). Weather in June »

July, the same as June, is a moderately hot summer month in Southport, Connecticut, with temperature in the range of an average high of 81°F (27.2°C) and an average low of 68.5°F (20.3°C). July is the warmest month, with an average high-temperature of 81°F (27.2°C) and an average low-temperature of 68.5°F (20.3°C). The average heat index is calculated to 85.3°F (29.6°C). Weather in July »

August, the last month of the summer, in Southport, is also a moderately hot month, with average temperature varying between 80.1°F (26.7°C) and 68.4°F (20.2°C). In Southport, the average high-temperature in August is relatively the same as in July - a still moderately hot 80.1°F (26.7°C). Weather in August »

September, the first month of the autumn, in Southport, is also an agreeable month, with average temperature ranging between max 73°F (22.8°C) and min 61.7°F (16.5°C). In Southport, the average high-temperature in September marginally drops, from a warm 80.1°F (26.7°C) in August, to an agreeable 73°F (22.8°C). Weather in September »

October, like September, in Southport, Connecticut, is another enjoyable autumn month, with average temperature fluctuating between 52.2°F (11.2°C) and 61.9°F (16.6°C). In Southport, Connecticut, the average high-temperature in October drops, from a pleasant 73°F (22.8°C) in September, to an enjoyable 61.9°F (16.6°C). Weather in October »

November, the last month of the autumn, in Southport, is also a fresh month, with temperature in the range of an average high of 50.9°F (10.5°C) and an average low of 41.2°F (5.1°C). In November, the average high-temperature decreases, from an enjoyable 61.9°F (16.6°C) in October, to a fresh 50.9°F (10.5°C). Weather in November »

The first month of the winter, December, is still a cold month in Southport, Connecticut, with average temperature ranging between max 41.9°F (5.5°C) and min 33.3°F (0.7°C). In December, the average high-temperature decreases, from a fresh 50.9°F (10.5°C) in November, to a cold 41.9°F (5.5°C). Weather in December »

What is the coldest month in Southport?

The coldest month in Southport is January, with an average high-temperature of 36.1°F (2.3°C) and an average low-temperature of 26.6°F (-3°C).

How much does it rain in Southport?

Throughout the year, in Southport, Connecticut, there are 170.1 rainfall days, and 37.76" (959mm) of precipitation is accumulated.

What is the driest month in Southport?

January is the month with the least rainfall. Rain falls for 9.4 days and accumulates 2.48" (63mm) of precipitation.

When does it snow in Southport?

January through April, November and December are months with snowfall in Southport, Connecticut.

How much does it snow in Southport?

In Southport, Connecticut, during the entire year, snow falls for 24.9 days, and aggregates up to 9.41" (239mm) of snow.

What are the months with the lowest UV index in Southport?

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

What month is the ocean coldest in Southport?

With an average ocean temperature of 39°F (3.9°C), February is the month with the coldest seawater in Southport, Connecticut.

What is the month with the least sunshine in Southport?

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

When does it snow the most in Southport?

March is the month with the most snowfall in Southport. Snow falls for 5.3 days and accumulates 2.8" (71mm) of snow.

What is the least humid month in Southport?

Months with the lowest humidity are April and November, with an average relative humidity of 72%.

What are the most humid months in Southport?

Months with the highest humidity in Southport are May and June, with an average relative humidity of 76%.

When it does not snow in Southport?

May through October are months without snowfall.

When are the longest days in Southport?

With an average of 15.1h of daylight, June has the longest days of the year in Southport, Connecticut.

What are the months with the highest UV index in Southport?

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

What is the warmest month in Southport?

July is the warmest month in Southport, with an average high-temperature of 81°F (27.2°C) and an average low-temperature of 68.5°F (20.3°C).

What month has the most sunshine in Southport?

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

What is the month with the warmest ocean in Southport?

August is the month with the warmest seawater in Southport, Connecticut, with an average ocean temperature of 73°F (22.8°C).

What is the rainiest month in Southport?

The month with the most rainfall is December when the rain falls for 12.7 days and typically aggregates up to 4.21" (107mm) of precipitation.

What is the month with the shortest days in Southport?

The month with the shortest days in Southport is December, with an average of 9.3h of daylight.
Average temperature - Southport, CT
Average humidity - Southport, CT
Average rainfall - Southport, CT

The wettest month (with the highest rainfall) is December (4.21").
The driest month (with the lowest rainfall) is January (2.48").

Average rainfall days - Southport, CT

The month with the highest number of rainy days is July (18.1 days).
The month with the lowest number of rainy days is January (9.4 days).

Average snowfall - Southport, CT
Average snowfall days - Southport, CT

The month with the highest number of snowfall days is January (7.1 days).
Months with the lowest number of snowfall days are May, June, July, August and September (0 days).

Average sea temperature - Southport, CT

The best month for swimming (with the highest average sea temperature) is August (73°F).
The coldest month (with the lowest average sea temperature) is February (39°F).

Average daylight / Average sunshine - Southport, CT

The month with the longest days is June (Average daylight: 15.1h).
The month with shortest days is December (Average daylight: 9.3h).

The month with most sunshine is July (Average sunshine: 10.6h).
Months with least sunshine are February and December (Average sunshine: 4.8).

Average UV index - Southport, CT