Charleston
South Carolina, USA
Long-term weather forecast
Long-term weather forecast

March weather forecast and climate
Charleston, SC

Trees along both sides of a street in Charleston, South Carolina, in the twilight light
Trees along both sides of a street in Charleston, South Carolina, in the twilight light
Marzo, the first month of the spring, in Charleston, is an agreeable month, with average temperature fluctuating between 46.8°F (8.2°C) and 69.6°F (20.9°C).

Temperature

In Charleston, the average high-temperature slightly increases, from an enjoyable 62.8°F (17.1°C) in Febrero, to an agreeable 69.6°F (20.9°C). In Marzo, the average low-temperature is 46.8°F (8.2°C).

Humidity

In Charleston, the average relative humidity is 68.1%.

Rainfall

In Marzo, in Charleston, the rain falls for 7.9 days. Throughout Marzo, 3.71" (94.2mm) of precipitation is accumulated. Throughout the year, in Charleston, there are 112.7 rainfall days, and 51.03" (1296.1mm) of precipitation is accumulated.

Snowfall

In Charleston snow does not fall in Enero, Marzo through Noviembre.

Ocean temperature

In Marzo, the average ocean 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 Charleston, the average length of the day is 12h.

Sunshine

The average sunshine in Marzo is 7.9h.

UV index

In Charleston, the average daily maximum UV index in Marzo is 7. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to the UV radiation for the ordinary person.
Note: In Marzo, the average maximum UV index of 7 translate into the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for 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.

What is the temperature in Marzo in Charleston?

The average high-temperature, in Marzo, in Charleston, is 69.6°F (20.9°C), while the average low-temperature is 46.8°F (8.2°C).

What is the average humidity in Marzo in Charleston?

In Marzo, the average relative humidity in Charleston is 68.1%.

How much does it rain in Charleston in Marzo?

In Charleston, South Carolina, during Marzo, the rain falls for 7.9 days and regularly aggregates up to 3.71" (94.2mm) of precipitation.

Does it snow in Charleston in Marzo?

In Marzo, in Charleston, South Carolina, it doesn't snow. Febrero is the latest month when it typically snows.

When it does not snow in Charleston?

Enero, Marzo through Noviembre are months without snowfall in Charleston, South Carolina.

How cold is the water in Marzo in Charleston?

In Charleston, the average seawater temperature in Marzo 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).

What is the average length of the day in Marzo in Charleston?

In Charleston, South Carolina, the average length of the day in Marzo is 12h.

How long on average sun shines in Marzo in Charleston?

In Charleston, the average sunshine in Marzo is 7.9h.

How high is the UV index in Marzo in Charleston?

In Marzo, the average daily maximum UV index is 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to the Sun's UV rays.
Average temperature in March - Charleston, SC
  • Average high temperature in March: 69.6°F

The warmest month (with the highest average high temperature) is July (91.1°F).
The month with the lowest average high temperature is January (59°F).

  • Average low temperature in March: 46.7°F

The month with the highest average low temperature is July (73°F).
The coldest month (with the lowest average low temperature) is January (37.5°F).

Average humidity in March - Charleston, SC
  • Average humidity in March: 68.1%

The month with the highest relative humidity is August (78.9%).
The month with the lowest relative humidity is February (67.4%).

Average rainfall in March - Charleston, SC
  • Average rainfall in March: 3.7"

The wettest month (with the highest rainfall) is August (7.2").
The driest month (with the lowest rainfall) is November (2.4").

Average rainfall days in March - Charleston, SC
  • Average rainfall days in March: 7.9 days

The month with the highest number of rainy days is August (13.2 days).
The month with the lowest number of rainy days is November (7 days).

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

The month with the highest snowfall is December (0.5").
Months with the lowest snowfall are January, March, April, May, June, July, August, September, October and November (0").

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

Months with the highest number of snowfall days are February and December (0.2 days).
Months with the lowest number of snowfall days are March, April, May, June, July, August, September, October and November (0 days).

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).

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

The month with the longest days is June (Average daylight: 14.3h).
The month with shortest days is December (Average daylight: 10h).

  • Average sunshine in March: 7.9h

The month with most sunshine is May (Average sunshine: 9.5h).
The month with least sunshine is December (Average sunshine: 5.5h).

Average UV index in March - Charleston, SC
  • Average UV index in March: 7

Months with the highest UV index are June, July and August (UV index 10).
Months with the lowest UV index are January and December (UV index 3).