March weather forecast
Southport, CT

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Weather in March

In March, the coastal city of Southport experiences a transition in its weather essence. While the slight increase in temperature compared to February indicates a slow march towards warmer months, it remains at a chill reminiscent of winter. Notably, this month experiences the highest rainfall for the first quarter of the year. The extended daylight hours may offer more opportunities for sightseeing, before water-based adventures become practical. Just like most places in Connecticut, the winter feel in Southport in March starts giving way to a more spring-like atmosphere.

Temperature

As February gives way to March, the average high-temperature displays a slight ascent, adjusting from a cold 38.3°F (3.5°C) to a chilly 44.2°F (6.8°C). An average low-temperature of 34°F (1.1°C) is noted during the month of March.

Humidity

In Southport, the average relative humidity in March is 73%.

Rainfall

In March, the rain falls for 13.2 days. Throughout March, 2.91" (74mm) of precipitation is accumulated. In Southport, during the entire year, the rain falls for 170.1 days and collects up to 37.76" (959mm) of precipitation.

Snowfall

Months with snowfall are January through April, November and December. The month with the most snowfall in Southport is March, when snow falls for 5.3 days and typically aggregates up to 2.8" (71mm) of snow.

Ocean temperature

In Southport, Connecticut, the average seawater temperature in March is 39.7°F (4.3°C).
Note: Within the context of swimming, this scenario is life-threatening. Instant loss of control over breathing impairs cognitive functions. It is essential to use a specialized swimsuit to mitigate thermal loss.

Daylight

In Southport, the average length of the day in March is 11h and 58min.
On the first day of the month, sunrise is at 6:26 am and sunset at 5:44 pm EST. On the last day of March, in Southport, sunrise is at 6:36 am and sunset at 7:17 pm EDT.
Note: 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 lasts until Sunday, November 3. 2024, at 2:00 am; consequently, the time zone reverts from EDT to EST.

Sunshine

In March, the average sunshine is 6.3h.

UV index

The months with the lowest UV index in Southport are January through March, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum daily UV index of 2 in March interprets into the following recommendations:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
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Frequently asked questions

How cold does it get in Southport in March?

During March, Southport experiences an average high-temperature of 44.2°F (6.8°C) and a low-temperature of 34°F (1.1°C).

What is the average humidity in March in Southport?

In March, the average relative humidity in Southport, Connecticut, is 73%.

How many days does it rain in March in Southport?

In March, in Southport, Connecticut, the rain falls for 13.2 days. Throughout March, 2.91" (74mm) of precipitation is accumulated.

What is the snowiest month in Southport?

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

How much does it snow in Southport in March?

In Southport, Connecticut, during March, snow falls for 5.3 days and regularly aggregates up to 2.8" (71mm) of snow.

What is the ocean temperature in March in Southport?

In March, the average ocean temperature in Southport, Connecticut, is 39.7°F (4.3°C). For swimming, this is considered life-threatening and very dangerous. The water feels painfully cold, and hyperventilation quickly occurs. A specialized swimsuit is mandatory to reduce thermal damage.

How many hours of daylight does Southport have in March?

In March, the average day length in Southport, Connecticut, is 11h and 58min.

When are sunrise and sunset in March in Southport?

On the first day of March in Southport, sunrise is at 6:26 am and sunset at 5:44 pm EST. On the last day of the month, sunrise is at 6:36 am and sunset at 7:17 pm EDT.

When does Daylight Saving Time (DST) start in March in Southport?

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

How long on average sun shines in March in Southport?

In Southport, Connecticut, the average sunshine duration in March is 6.3h.

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

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

What is the UV index reading in March in Southport?

The average daily maximum UV index in March in Southport, Connecticut, is 2. A UV Index of 2, and less, symbolizes a low health threat from unsafe exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJFMarchAMJJASOND
Feb
March
Apr
Average high temperature
38.3°F 3.5°C
44.2°F 6.8°C
54.7°F 12.6°C
Average low temperature
27.7°F -2.4°C
34°F 1.1°C
43.2°F 6.2°C
Average pressure
30.02" 763mmHg
30.05" 763mmHg
29.98" 761mmHg
Average wind speed
10.1mph 16.3km/h
10.2mph 16.4km/h
9.4mph 15.1km/h
Average max. wind speed
10.8mph 17.4km/h
10.8mph 17.4km/h
10.2mph 16.4km/h
Average wind speed gusts
15.5mph 24.9km/h
15.7mph 25.3km/h
15.1mph 24.3km/h
Average humidity
75%
73%
72%
Average rainfall
2.56" 65mm
2.91" 74mm
3.15" 80mm
Average rainfall days
10.5
13.2
15.8
Average snowfall
2.4" 61mm
2.8" 71mm
0.08" 2mm
Average snowfall days
7
5.3
0.6
Average sea temperature
39°F 3.9°C
39.7°F 4.3°C
44.2°F 6.8°C
Average daylight
10h 4min
12h 0min
13h 2min
Average sunshine
4h 5min
6h 2min
8h 3min
Average sunshine days
12.7
13.3
12.5
Average UV index
2
2
3
Average cloud cover
47%
47%
44%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

Average temperature in March
Southport, CT

Average temperature in March - Southport, CT
  • Average high temperature in March: 44.2°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 March: 34°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).

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Average pressure in March
Southport, CT

Average pressure in March - Southport, CT
  • Average pressure in March: 30.05"Hg

The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in March
Southport, CT

Average wind speed in March - Southport, CT
  • Average wind speed in March: 10.2mph

The windiest month (with the highest average wind speed) is January (10.5mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).

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Average humidity in March
Southport, CT

Average humidity in March - Southport, CT
  • Average humidity in March: 73%

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

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Average rainfall in March
Southport, CT

Average rainfall in March - Southport, CT
  • Average rainfall in March: 2.91"

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

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Average rainfall days in March
Southport, CT

Average rainfall days in March - Southport, CT
  • Average rainfall days in March: 13.2 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).

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Average snowfall in March
Southport, CT

Average snowfall in March - Southport, CT
  • Average snowfall in March: 2.8"

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

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Average snowfall days in March
Southport, CT

Average snowfall days in March - Southport, CT
  • Average snowfall days in March: 5.3 days

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

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Average sea temperature in March
Southport, CT

Average sea temperature in March - Southport, CT
  • Average sea temperature in March: 39.7°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).

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Average daylight in March /
Average sunshine in March
Southport, CT

Average daylight in March / Average sunshine in March - Southport, CT
  • Average daylight in March: 12h and 0min

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).

  • Average sunshine in March: 6h and 2min

The month with the most sunshine is July (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 in March
Southport, CT

Average sunshine days in March - Southport, CT
  • Average sunshine days in March: 13.3 days

The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is June (11.2 days).

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Average UV index in March
Southport, CT

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

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 cloud cover in March
Southport, CT

Average cloud cover in March - Southport, CT
  • Average cloud cover in March: 47

The month with the most cloud cover is December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 29).

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Average visibility in March
Southport, CT

Average visibility in March - Southport, CT
  • Average visibility in March: 6mi

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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Southport, Connecticut, USA

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