March weather forecast
Sullivan's Island, SC

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Weather in March

The first month of the spring, March, is an enjoyable month in Sullivan's Island, South Carolina, with an average temperature ranging between max 64.4°F (18°C) and min 53.6°F (12°C).

Temperature

The arrival of March marks a slight shift to an average high-temperature of an enjoyable 64.4°F (18°C) from February's 59.9°F (15.5°C). Sullivan's Island observes an average nighttime low-temperature of 53.6°F (12°C) during the month of March.

Humidity

The months with the lowest humidity in Sullivan's Island are January and March, with an average relative humidity of 73%.

Rainfall

In Sullivan's Island, in March, it is raining for 11.5 days, with typically 1.97" (50mm) of accumulated precipitation. In Sullivan's Island, South Carolina, during the entire year, the rain falls for 182 days and collects up to 45.55" (1157mm) of precipitation.

Snowfall

In Sullivan's Island, snow does not fall in March through December.

Daylight

In March, the average length of the day in Sullivan's Island, South Carolina, is 12h and 0min.
On the first day of the month, sunrise is at 6:46 am and sunset at 6:16 pm EST. On the last day of March, in Sullivan's Island, sunrise is at 7:07 am and sunset at 7:39 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 Sullivan's Island, the average sunshine in March is 7.8h.

UV index

In Sullivan's Island, South Carolina, the average daily maximum UV index in March is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum high daily UV index of 5 during March translates into the following directions:
Make use of precautions - It is urged to ward off sun damage. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
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Frequently asked questions

What is the average March temperature in Sullivan's Island?

In March, the average high-temperature and low-temperature in Sullivan's Island, South Carolina, are 64.4°F (18°C) and 53.6°F (12°C) respectively.

What are the least humid months in Sullivan's Island?

January and March, with an average relative humidity of 73%, are the least humid months in Sullivan's Island, South Carolina.

What is the average humidity in March in Sullivan's Island?

In Sullivan's Island, the average relative humidity in March is 73%.

How many days does it rain in March in Sullivan's Island?

In Sullivan's Island, South Carolina, in March, it is raining for 11.5 days, with typically 1.97" (50mm) of accumulated precipitation.

When it does not snow in Sullivan's Island?

March through December are months without snowfall in Sullivan's Island.

Does it snow in Sullivan's Island in March?

In March, in Sullivan's Island, it doesn't snow. February is the latest month when it typically snows.

What is the average length of the day in March in Sullivan's Island?

The average day length in March in Sullivan's Island is 12h and 0min.

When are sunrise and sunset in March in Sullivan's Island?

On the first day of March in Sullivan's Island, South Carolina, sunrise is at 6:46 am and sunset at 6:16 pm EST. On the last day of the month, sunrise is at 7:07 am and sunset at 7:39 pm EDT.

When does Daylight Saving Time (DST) start in March in Sullivan's Island?

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

How many hours of sunshine does Sullivan's Island have in March?

The average sunshine duration in March in Sullivan's Island, South Carolina, is 7.8h.

What is the UV index reading in March in Sullivan's Island?

In March, the average daily maximum UV index in Sullivan's Island is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in March
Sullivan's Island, SC

Average temperature in March - Sullivan
  • Average high temperature in March: 64.4°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (57°F).

  • Average low temperature in March: 53.6°F

The month with the highest average low temperature is July (78.3°F).
The coldest month (with the lowest average low temperature) is January (45.5°F).

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Average pressure in March
Sullivan's Island, SC

Average pressure in March - Sullivan
  • Average pressure in March: 30.09"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

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Average wind speed in March
Sullivan's Island, SC

Average wind speed in March - Sullivan
  • Average wind speed in March: 10.3mph

The windiest months (with the highest average wind speed) are March and April (10.3mph).
The calmest month (with the lowest average wind speed) is August (8.4mph).

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Average humidity in March
Sullivan's Island, SC

Average humidity in March - Sullivan
  • Average humidity in March: 73%

The month with the highest relative humidity is December (78%).
The months with the lowest relative humidity are January and March (73%).

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Average rainfall in March
Sullivan's Island, SC

Average rainfall in March - Sullivan
  • Average rainfall in March: 1.97"

The wettest month (with the highest rainfall) is August (8.23").
The driest month (with the least rainfall) is January (1.42").

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Average rainfall days in March
Sullivan's Island, SC

Average rainfall days in March - Sullivan
  • Average rainfall days in March: 11.5 days

The month with the highest number of rainy days is August (25.9 days).
The month with the least rainy days is November (8.5 days).

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Average snowfall days in March
Sullivan's Island, SC

Average snowfall days in March - Sullivan
  • Average snowfall days in March: 0 days

The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).

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Average daylight in March /
Average sunshine in March
Sullivan's Island, SC

Average daylight in March / Average sunshine in March - Sullivan
  • Average daylight in March: 12h and 0min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in March: 7h and 5min

The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).

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Average sunshine days in March
Sullivan's Island, SC

Average sunshine days in March - Sullivan
  • Average sunshine days in March: 17.7 days

The month with the most sunshine days is January (19.3 days).
The month with the least sunshine days is August (2.8 days).

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Average UV index in March
Sullivan's Island, SC

Average UV index in March - Sullivan
  • Average UV index in March: 5

The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 3).

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Average cloud cover in March
Sullivan's Island, SC

Average cloud cover in March - Sullivan
  • Average cloud cover in March: 35

The month with the most cloud cover is December (Cloud cover 39).
The month with the least cloud cover is June (Cloud cover 25).

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Average visibility in March
Sullivan's Island, SC

Average visibility in March - Sullivan
  • 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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Sullivan's Island, South Carolina, USA

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