Mount Pleasant climate
Warm Lowcountry weather is inviting until humidity and water enter the home search
The current climate rows show a 90°F average summer high, 56 days above 90°F, a 44°F / 7°C average winter low, and eight freezing days. Overall comfort is 3.3 out of 5, summer feel is 3.4, winter feel is 3.9, air quality is 4.7 out of 5, and six months fall within the comfort window. Humidity is 79%, heat risk is Moderate, and weather volatility is rated Strong.
Charleston International Airport normals provide a regional comparison: 52.51 inches of annual precipitation, July mean high and low of 91.3°F and 73.7°F, January mean high and low of 60.2°F and 38.9°F, about 64.3 days at or above 90°F, and about 22.4 freezing nights. The home needs cooling, shade, roof, drainage, mold prevention, power continuity, wind protection, and insurance appropriate for the coast.
Living through the seasons
Summer and winter comfort tell a similar story.
- Overall Comfort
- Good
3.3 / 5
- Average Summer High
- 90°F
- Days Above 90°F
- 56 days/year
- Summer Feel
- Very Good
Hot · 90°F
Good
3.4 / 5
- Average Winter Low
- 44°F / 7°C
- Days Below Freezing
- 8 days/year
- Winter Feel
- Very Good
Very Good
Excellent
3.9 / 5
The shape of the year
Humidity, comfortable months, and sunshine show how the seasons differ.
- Humidity
- 79%
- Comfortable Months
- 6 months
- Solar Exposure
- 1722 peak sun hrs/yr
Good
Fair
Fair
Air, allergies, and weather
Air quality and allergies shape day to day comfort. The best months and weather risks help with timing.
Air and allergies
- Air Quality
- Excellent
- Allergy Levels
- Poor
4.7 / 5
Current AQI
Checking…
Current PM2.5
Checking…
Timing and weather
- Long Term Fine Particle Pollution
- 6.6 µg/m³ 2021-2025 modeled average
- Best Months
- Mar, Apr, May, Sep, Oct, Nov
- Toughest Months
- Jul, Aug, Jun
- Heat Risk
- Moderate
- Drought Risk
- Low
- Weather Volatility
- Strong
Good · 6.6 µg/m³ 2021-2025 modeled average
Good
3.6 / 5
Mount Pleasant in everyday life
Could Mount Pleasant work for you?
What may work well
- Winter is mild relative to many U.S. retirement markets, with a 44°F / 7°C average low and eight freezing days.
- Air quality is rated Excellent at 4.7 out of 5, and six months fall within the comfort window.
- Senior programs, parks, waterfront areas, and nearby healthcare provide indoor and outdoor choices.
What to think about
- A 90°F average high, 56 days above 90°F, 79% humidity, and High flood and storm risk require substantial home preparation.
- Coastal water, wind, mold, power, insurance, roof, drainage, and road access can dominate the climate decision.
- The Charleston station is a regional proxy, so the exact property still needs inspection.
Choose a Mount Pleasant property that can carry the climate
Inspect cooling and humidity
Check air-conditioning age, service, filters, insulation, windows, shade, electricity, fans, water, mold, and a comfortable indoor room.
Review water and wind
Use FEMA maps and town GIS, then inspect roof, gutters, grade, lower rooms, drainage, high-tide water, storm surge, wind, insurance, and access.
Plan the hot-day week
Keep a shaded park, senior program, indoor venue, pharmacy, grocery, care route, and family connection that work during the hottest hours.
Track current warnings
Follow town, county, National Weather Service, heat, storm, flood, road, power, and emergency notices before longer trips or appointments.
Questions retirees ask
What is Mount Pleasant's climate like for retirement?
The current rows show a 90°F average summer high, 56 days above 90°F, a 44°F / 7°C average winter low, eight freezing days, 79% humidity, six comfortable months, and Moderate heat risk.
Is Mount Pleasant too humid?
That depends on the household and home. Check cooling, insulation, windows, shade, mold, water, electricity, indoor recovery, and whether the preferred outdoor routes can be used in cooler hours.
What should a coastal home inspection include?
Review flood zone, drainage, high-tide water, storm surge, roof, gutters, lower rooms, mold, wind, insurance, power, generators, shutters, and evacuation routes.
Does the mild winter make the home easy?
It reduces freezing weather, but coastal rain, wind, humidity, occasional cold, power disruption, drainage, and storm preparation remain meaningful property questions.
Mount Pleasant's climate can suit someone who wants warm Lowcountry seasons and accepts humidity, water, cooling, insurance, and storm preparation. Visit during an afternoon heat period and after rain, then decide whether the property keeps the good weather usable.
Sources
Climate comfort helps estimate how practical daily life may feel across the year, especially for heat, humidity, cold, and seasonal constraints.
Seasonal timing, health conditions, air conditioning, air quality, and elevation can change the lived experience.
- NASA POWER
Used for Overall Comfort, Summer Feel, Average Summer High, Days Above 90°F, Winter Feel, Average Winter Low, Days Below Freezing, Humidity, Comfortable Months, Solar Exposure, Best Months, Toughest Months, Allergy Levels, Heat Risk
- Open-Meteo / Copernicus CAMS
Used for Air Quality, Long-Term Fine-Particle Pollution
Checked 2026-05-18
- Federal Emergency Management Agency National Risk Index
Used for Drought Risk
- NOAA IBTrACS
Used for Weather Volatility
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Partner with Retirement ListsResearch and writing byGrant Gibson
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