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

May weather forecast and climate
Southport, CT

May, the last month of the spring, in Southport, is a comfortable month, with average temperature varying between 52.5°F (11.4°C) and 64.9°F (18.3°C).

Temperature

In May, the average high-temperature rises, from a cool 54.7°F (12.6°C) in April, to an enjoyable 64.9°F (18.3°C). In May, the average low-temperature is 52.5°F (11.4°C).

Humidity

May and June, with an average relative humidity of 76%, are most humid months.

Rainfall

In Southport, Connecticut, in May, it is raining for 17.3 days, with typically 3.03" (77mm) of accumulated precipitation. In Southport, during the entire year, the rain falls for 170.1 days and collects up to 37.76" (959mm) of precipitation.

Snowfall

May through October are months without snowfall in Southport.

Ocean temperature

In Southport, the average water temperature is 52°F (11.1°C).
Note: Swimming in 52°F (11.1°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

Daylight

In Southport, the average length of the day in May is 14.5h.

Sunshine

The average sunshine in Southport, Connecticut, is 8.8h.

UV index

The average daily maximum UV index in Southport is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to the Sun's UV rays for the average person.
Note: The daily maximum UV index of 5 interpret into the following advice:
Take precautions - Protection against the skin and eye damage is obliged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

What is the temperature in May in Southport?

In Southport, Connecticut, in May, the average high-temperature is 64.9°F (18.3°C), and the average low-temperature is 52.5°F (11.4°C).

What are the most humid months in Southport?

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

What is the average humidity in May in Southport?

In May, the average relative humidity is 76%.

How many days does it rain in May in Southport?

In Southport, Connecticut, in May, it is raining for 17.3 days, with typically 3.03" (77mm) of accumulated precipitation.

Does it snow in Southport in May?

In May, in Southport, Connecticut, it doesn't snow. April is the latest month when it typically snows.

When it does not snow in Southport?

In Southport snow does not fall in May through October.

How cold is the water in May in Southport?

In May, the average ocean temperature in Southport, Connecticut, is 52°F (11.1°C). Swimming in 52°F (11.1°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

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

In Southport, the average length of the day in May is 14.5h.

How long on average sun shines in May in Southport?

The average sunshine in May in Southport, Connecticut, is 8.8h.

What is the UV index intensity in May in Southport?

In Southport, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health from the exposure to the Sun's UV rays.
Average temperature in May - Southport, CT
  • Average high temperature in May: 64.9°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 May: 52.5°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 May - Southport, CT
  • Average humidity in May: 76%

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 May - Southport, CT
  • Average rainfall in May: 3.03"

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 May - Southport, CT
  • Average rainfall days in May: 17.3 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 May - Southport, CT
  • Average snowfall in May: 0"

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 May - Southport, CT
  • Average snowfall days in May: 0 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 May - Southport, CT
  • Average sea temperature in May: 51.9°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 May / Average sunshine in May - Southport, CT
  • Average daylight in May: 14.5h

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 May: 8.8h

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 May - Southport, CT
  • Average UV index in May: 5

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).