March weather forecast
Charleston, SC

Trees along both sides of a street in Charleston, South Carolina
Trees along both sides of a street in Charleston, South Carolina

Weather in March

March, the first month of the spring in Charleston, is an enjoyable month, with temperature in the range of an average low of 52.7°F (11.5°C) and an average high of 65.1°F (18.4°C).

Temperature

In Charleston, the average high-temperature in March is essentially the same as in February - an enjoyable 65.1°F (18.4°C). The average low-temperature, in March, is 52.7°F (11.5°C).

Humidity

The months with the lowest humidity in Charleston are January and March, with an average relative humidity of 73%.

Rainfall

In March, the rain falls for 12.3 days. Throughout March, 2.2" (56mm) of precipitation is accumulated. In Charleston, during the entire year, the rain falls for 178.9 days and collects up to 41.93" (1065mm) of precipitation.

Snowfall

February through November are months without snowfall.

Ocean temperature

In Charleston, the average water temperature is 62.2°F (16.8°C).
Note: For most, swimming in 62.2°F (16.8°C) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 69.8°F (21°C) to 59°F (15°C).

Daylight

In March, the average length of the day in Charleston, South Carolina, is 12h and 0min.
On the first day of March, sunrise is at 6:47 am and sunset at 6:16 pm EST. On the last day of the month, sunrise is at 7:08 am and sunset at 7:39 pm EDT.
Note: On Sunday, March 13. 2022, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time lasts until Sunday, November 6. 2022, at 2:00 am; consequently, the time zone reverts from EDT to EST.

Sunshine

In Charleston, the average sunshine in March is 7.7h.

UV index

In March, the average daily maximum UV index in Charleston is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 5 in March interpret into the following advice:
Take precautions - Protection against 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. 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. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the least humid month in Charleston?

January and March, with an average relative humidity of 73%, are the least humid months.

What is the average humidity in March in Charleston?

In March, the average relative humidity in Charleston, South Carolina, is 73%.

How many days does it rain in March in Charleston?

In March, in Charleston, the rain falls for 12.3 days. Throughout March, 2.2" (56mm) of precipitation is accumulated.

When it does not snow in Charleston?

February through November are months without snowfall.

How cold is the water in March in Charleston?

In March, the average ocean temperature in Charleston, South Carolina, is 62.2°F (16.8°C). For most, swimming in 62.2°F (16.8°C) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 69.8°F (21°C) to 59°F (15°C).

How many hours of daylight does Charleston have in March?

In Charleston, the average day length in March is 12h and 0min.

When are sunrise and sunset in March in Charleston?

On the first day of March, sunrise is at 6:47 am and sunset at 6:16 pm EST. On the last day of the month, sunrise is at 7:08 am and sunset at 7:39 pm EDT.

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

On Sunday, March 13. 2022, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. DST ends Sunday, November 6. 2022, at 2:00 am.

How long on average sun shines in March in Charleston?

In Charleston, South Carolina, the average sunshine duration in March is 7.7h.

How high is the UV index in March in Charleston?

In Charleston, South Carolina, the average daily maximum UV index in March is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in March
Charleston, SC

Average temperature in March - Charleston, SC
  • Average high temperature in March: 65.1°F

The warmest month (with the highest average high temperature) is July (88.2°F).
The month with the lowest average high temperature is January (57°F).

  • Average low temperature in March: 52.7°F

The month with the highest average low temperature is July (77.4°F).
The coldest month (with the lowest average low temperature) is January (44.4°F).

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Average pressure in March
Charleston, SC

Average pressure in March - Charleston, SC
  • 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
Charleston, SC

Average wind speed in March - Charleston, SC
  • Average wind speed in March: 9.2mph

The windiest month (with the highest average wind speed) is April (9.4mph).
The calmest month (with the lowest average wind speed) is August (7.5mph).

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Average humidity in March
Charleston, SC

Average humidity in March - Charleston, SC
  • 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
Charleston, SC

Average rainfall in March - Charleston, SC
  • Average rainfall in March: 2.2"

The wettest month (with the highest rainfall) is August (7.13").
The driest month (with the least rainfall) is January (1.42").

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Average rainfall days in March
Charleston, SC

Average rainfall days in March - Charleston, SC
  • Average rainfall days in March: 12.3 days

The month with the highest number of rainy days is August (24.8 days).
The month with the least rainy days is November (8.7 days).

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Average snowfall in March
Charleston, SC

Average snowfall in March - Charleston, SC
  • Average snowfall in March: 0"

The month with the highest snowfall is January (0.12").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").

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Average snowfall days in March
Charleston, SC

Average snowfall days in March - Charleston, SC
  • Average snowfall days in March: 0 days

The month with the highest number of snowfall days is January (0.4 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).

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Average sea temperature in March
Charleston, SC

Average sea temperature in March - Charleston, SC
  • Average sea temperature in March: 62.3°F

The best month for swimming (with the highest average sea temperature) is August (83.5°F).
The coldest month (with the lowest average sea temperature) is February (61.9°F).

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Average daylight in March /
Average sunshine in March
Charleston, SC

Average daylight in March / Average sunshine in March - Charleston, SC
  • Average daylight in March: 12h and 0min

The month with the longest days is June (Average daylight: 14h and 17min).
The month with the shortest days is December (Average daylight: 10h and 2min).

  • Average sunshine in March: 7h and 42min

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
Charleston, SC

Average sunshine days in March - Charleston, SC
  • Average sunshine days in March: 16.8 days

The month with the most sunshine days is January (19.3 days).
The month with the least sunshine days is August (3.8 days).

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Average UV index in March
Charleston, SC

Average UV index in March - Charleston, SC
  • 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
Charleston, SC

Average cloud cover in March - Charleston, SC
  • Average cloud cover in March: 35

The months with the most cloud cover are February and December (Cloud cover 39).
The months with the least cloud cover are June and July (Cloud cover 26).

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Average visibility in March
Charleston, SC

Average visibility in March - Charleston, SC
  • 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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