April 15 is generally a great time to visit Charleston. While there is a slight chance of rain (18%), showers are usually brief. Expect comfortable 23°C weather. It's a lively time to explore Charleston, with most attractions operating at full capacity.
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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 April 15
"Mild & Comfortable. Expect average highs of 22.7°C. 18% chance of rain."
What to Wear in Charleston in April
Based on historical data for April 15, Charleston typically experiences temperatures between 14.8°C and 22.7°C. We recommend packing t-shirt, light clothing to stay comfortable. Trends suggest it will stay mostly dry (18% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for Charleston
Smart Suitcase
- T-Shirt
- Light Clothing
Average High
22.7°C
Daytime Peak
Average Low
14.8°C
Nighttime Low
Feels Like
23.1°C
☀️ Feels accurate
Rain Chance
18%
Avg 1.3mm if it rains
Cloud Cover
47%
Overcast
Pressure
1017.4 hPa
Medium volatility
Charleston Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
✓ This date historically delivers consistent weather 77% of the time. Safe to plan outdoor activities with confidence.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 30 recommended
05:00 - 10:00
16:00 - 18:00
Type I-II
🔴 16 min to burn
Type III-IV
🟡 24 min to burn
Type V-VI
🟢 40 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
16.7°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
⚠️ Mixed Conditions
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in United States
Flight Traffic
Busy
76/100 pressure index
Health Advisory
Healthy
Routine only • View Details →
Landing Slots
~104
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Charleston
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
05:51
☀️ Noon
12:20
🌇 Sunset
18:50
⏱️ Daylight
12h 59m
Wind Speed
21.9 km/h
Moderate wind
Sunshine
10.4 hrs
Direct Sun (Cloud-free)
Humidity
69%
Slightly humid
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
🟡 Busy
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 April 15 averages 22.7°C with a 18% 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
April 17
22.8°C • 13% rain
Score
100
April 18
22.9°C • 12% rain
Score
100
April 19
23.3°C • 12% rain
Score
100
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (April 15) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Charleston Worth Visiting on April 15?
Planning a trip to Charleston on April 15? 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 22.7°C with a 18% historical precipitation risk.
✈️ Travel Logistics: Approximately 104 landing slots available daily during this period, indicating manageable crowd levels.
🌊 Coastal Conditions: Water temperature averages 19.7°C (refreshing tonic). Wave conditions are generally fun waves with heights around 0.76m.
📊 Historical Extremes: The hottest April 15 recorded in the last 30 years saw temperatures hit 29°C in 2025, while the coldest dropped to 11.2°C in 2020.