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

January weather forecast and climate
Southport, CT

January, like December, in Southport, Connecticut, is another cold winter month, with average temperature ranging between min 26.6°F (-3°C) and max 36.1°F (2.3°C).

Temperature

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

Humidity

In January, the average relative humidity in Southport is 74%.

Rainfall

The month with the least rainfall in Southport is January when the rain falls for 9.4 days and typically collects 2.48" (63mm) of precipitation.

Snowfall

Months with snowfall are January through April, November and December. In Southport, during January, snow falls for 7.1 days and regularly aggregates up to 2.13" (54mm) of snow. Throughout the year, there are 24.9 snowfall days, and 9.41" (239mm) of snow is accumulated.

Ocean temperature

In January, the average ocean temperature is 41.5°F (5.3°C).
Note: At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

Daylight

In Southport, the average length of the day in January is 9.6h.

Sunshine

In Southport, the average sunshine is 5.1h.

UV index

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from the exposure to the Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 2 in January transform into the following instructions:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the coldest month in Southport?

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

What is the temperature in January in Southport?

The average high-temperature, in January, is 36.1°F (2.3°C), while the average low-temperature is 26.6°F (-3°C).

What is the average humidity in January in Southport?

In January, the average relative humidity is 74%.

How many days does it rain in January in Southport?

In Southport, in January, during 9.4 rainfall days, 2.48" (63mm) of precipitation is typically accumulated.

What is the driest month in Southport?

The month with the least rainfall is January when the rain falls for 9.4 days and typically collects 2.48" (63mm) of precipitation.

How much does it snow in Southport in January?

In Southport, during January, snow falls for 7.1 days and regularly aggregates up to 2.13" (54mm) of snow.

How cold is the water in January in Southport?

In Southport, Connecticut, the average seawater temperature in January is 41.5°F (5.3°C). Swimming in 41.5°F (5.3°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

What is the average length of the day in January in Southport?

The average length of the day in January in Southport, Connecticut, is 9.6h.

How long on average sun shines in January in Southport?

In January, the average sunshine is 5.1h.

What is the month with the lowest UV index in Southport?

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

What is the UV index intensity in January in Southport?

The average daily maximum UV index in January in Southport, Connecticut, is 2. A UV Index of 2, and less, symbolizes a low health risk from the exposure to the Sun's UV radiation.
Average temperature in January - Southport, CT
  • Average high temperature in January: 36.1°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (36.1°F).

  • Average low temperature in January: 26.6°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (26.6°F).

Average humidity in January - Southport, CT
  • Average humidity in January: 74%

Months with the highest relative humidity are May and June (76%).
Months with the lowest relative humidity are April and November (72%).

Average rainfall in January - Southport, CT
  • Average rainfall in January: 2.48"

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

Average rainfall days in January - Southport, CT
  • Average rainfall days in January: 9.4 days

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

Average snowfall in January - Southport, CT
  • Average snowfall in January: 2.13"

The month with the highest snowfall is March (2.8").
Months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in January - Southport, CT
  • Average snowfall days in January: 7.1 days

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

Average sea temperature in January - Southport, CT
  • Average sea temperature in January: 41.5°F

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 in January / Average sunshine in January - Southport, CT
  • Average daylight in January: 9.6h

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

  • Average sunshine in January: 5.1h

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

Average UV index in January - Southport, CT
  • Average UV index in January: 2

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