March 31 is generally a great time to visit Charleston. While there is a slight chance of rain (22%), showers are usually brief. Expect comfortable 21°C weather. Charleston is seeing high visitor numbers, so iconic spots may be busier than usual.
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Essential Travel Info for Charleston
Currency
USD
$ United States dollar
Language
English
Driving
Right side
Safety
Moderate Safety
GPI: 2.44
Charleston Weather Forecast for March 31
"Mild & Comfortable. Expect average highs of 21.1°C. 22% chance of rain."
What to Wear in Charleston in March
Based on historical data for March 31, Charleston typically experiences temperatures between 13.6°C and 21.1°C. We recommend packing light jacket, long pants to stay comfortable. Trends suggest it will stay mostly dry (22% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for Charleston
Smart Suitcase
- Light Jacket
- Long Pants
Average High
21.1°C
Daytime Peak
Average Low
13.6°C
Nighttime Low
Feels Like
21.3°C
☀️ Feels accurate
Rain Chance
22%
Avg 1.6mm if it rains
Cloud Cover
54%
Overcast
Pressure
1017.4 hPa
Medium volatility
Charleston Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
✓ Weather is generally predictable, but pack for minor variations. A light backup layer is recommended.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 30 recommended
06:00 - 10:00
16:00 - 18:00
Type I-II
🔴 26 min to burn
Type III-IV
🟡 39 min to burn
Type V-VI
🟢 65 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
16.3°C
Noticeable
Heat Stress
Low
No heat warning
🙂 Best outdoor time:
Any time during daylight hours
Marine Conditions
Marine Life
No special warnings. Enjoy the swim!
Swim Index
❄️ Cold Water Hazard
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in United States
Flight Traffic
Busy
78/100 pressure index
Health Advisory
Healthy
Routine only • View Details →
Landing Slots
~107
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Charleston
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
06:10
☀️ Noon
12:25
🌇 Sunset
18:39
⏱️ Daylight
12h 29m
Wind Speed
21.4 km/h
Moderate wind
Sunshine
9.5 hrs
Direct Sun (Cloud-free)
Humidity
74%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Charleston
Smart Flight Estimator
Airport-to-Airport Logistics
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Travel Health & Safety in Charleston
Travel Comfort Index
Real-time tourism conditions
Weather Quality
☀️ Excellent
Tourist Crowds
🟢 Moderate
Price Level
💰💰 Moderate
Health & Wellbeing
Meteo-Health Forecast
Moderate fluctuations. Some sensitivity possible.
Weather unlikely to affect joint pain.
Moderate fish activity expected.
Air quality is excellent. Perfect for outdoor activities.
Regional Safety Profile
Seismic Activity
Rare minor tremors. Buildings are earthquake-resistant.
Atlantic Hurricane Risk
Season: Jun - Nov
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Charleston on March 31 averages 21.1°C with a 22% precipitation probability. Wedding/Outdoor Event Score: 97/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Charleston Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
March 26
20°C • 17% rain
Score
99
March 24
19.7°C • 18% rain
Score
98
March 25
19.7°C • 19% rain
Score
98
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (March 31) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Charleston Worth Visiting on March 31?
Planning a trip to Charleston on March 31? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year is characterized by pleasant mild weather averaging 21.1°C with a 22% historical precipitation risk.
✈️ Travel Logistics: Approximately 107 landing slots available daily during this period, indicating manageable crowd levels.
🌊 Coastal Conditions: Water temperature averages 17.8°C (refreshing tonic). Wave conditions are generally fun waves with heights around 0.85m.
📊 Historical Extremes: The hottest March 31 recorded in the last 30 years saw temperatures hit 24.9°C in 2017, while the coldest dropped to 12°C in 2018.