March weather forecastCharleston, SC
March
Weather in March
The vestiges of winter yield to balmy spring weather in March. Charlestonites enjoy a more agreeable climate the month. Bright days with increased sunshine hours are characteristic, while cloud cover reduces. However, rains continue to pepper the month with 2.2" (56mm) of rainfall. Finally, pleasant sea temperatures invite early swimmers and sunbathers to the city’s beaches to mark the arrivals of springtime.Temperature
The transition into March in Charleston is marked with an average high-temperature of a comfortable 65.1°F (18.4°C), showing an insignificant shift from February's 60.4°F (15.8°C). During March nights, Charleston records an average temperature of 52.7°F (11.5°C).Humidity
The months with the lowest humidity in Charleston, South Carolina, are January and March, with an average relative humidity of 73%.Rainfall
In Charleston, in March, during 12.3 rainfall days, 2.2" (56mm) of precipitation is typically 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 March, the average ocean temperature is 62.2°F (16.8°C).Note: Swimming is not a pleasant activity for most when the water temperature is 62.2°F (16.8°C). As the water temperature drops from 69.8°F (21°C) to 59°F (15°C), breathing becomes more difficult to control.
Daylight
The average length of the day in March in Charleston, South Carolina, is 12h and 0min.On the first day of March, sunrise is at 6:46 am and sunset at 6:17 pm EST. On the last day of the month, 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 Charleston, the average sunshine in March is 7.7h.UV index
In Charleston, the average daily maximum UV index in March is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: A maximum high daily UV index of 5 during March translates into the following directions:
Take necessary precautions - Suggestions to elude sunburn are provided. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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).
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).
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).
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%).
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").
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).
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").
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).
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 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 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).
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).
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).
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).
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).
