30YearWeather
Charleston in July
Charleston weather in July - United States
🌧️Wet Season

Charleston Weather in July

Plan your July trip to Charleston, United States. Based on 30 years of NASA data, expect temperatures of 31°C (high) to 25°C (low), with 43% rain probability and 8 hours of daily sunshine. The Coastal Waters averages 30°C in July. Pack rain gear for around 31 rainy days.

Avg High
31°C

Hottest around day 20

Avg Low
25°C

Coolest around day 1

Rainy Days
31days

43% avg rain chance

Sunshine
8hrs/day

Summer season

Sea Temperature in July

Coastal Waters(Ocean)

30.2°C

Monthly Average

Water Feel
🌴Tropical

Perfect for swimming and water sports

Swim Rating
Excellent for swimming

Based on average sea surface temperature

Body of Water
Coastal Waters

Ocean

Charleston coastline

Charleston July Weather Calendar

Click any day to see detailed weather information

Currency

USD

$ United States dollar

Language

English

Driving

Right side

Safety

Moderate Safety

GPI: 2.44

Travel Intelligence

Exclusive flight analytics & health data for Charleston

Smart Flight Estimator

Airport-to-Airport Logistics

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Add your home location in settings to see airport details.

Flight Connectivity Analysis

Airport traffic data & seasonal patterns

Moderate
44/ 100
Traffic Index

Balanced traffic

Peak Daily Arrivals

0

slots per day

Peak

Aug

Low

Jan

Monthly Traffic Distribution

82
Jan
88
Feb
107
Mar
104
Apr
121
May
128
Jun
118
Jul
137
Aug
121
Sep
123
Oct
111
Nov
128
Dec
Traffic Level
Low Season

Key Connections

Atlanta Hartsfield Jackson (ATL)
Charlotte Douglas (CLT)
Chicago O'Hare (ORD)
Washington Ronald Reagan National (DCA)
New York John F Kennedy (JFK)

Health & Safety Advisory

CDC travel health recommendations

No Requirements

No Special Vaccinations Required

Standard travel precautions apply

Source: CDC Travelers' Health

View Complete Health Guide

Is July a Good Time to Visit Charleston?

👌Good option with minor considerations
Short Answer

July brings storm season risk to Charleston. While typical weather is 31°C with 43% rain, plan for potential disruptions and secure cancellation-friendly bookings.

Decision Factors

Atlantic Hurricane season active

Atlantic zone - expect potential atlantic hurricane activity

Oppressive heat and humidity

30.5°C with 80% humidity - challenging conditions

Feels significantly hotter than 30.5°C

Heat index: 39°C due to 80% humidity

Warm tropical seas

30.2°C sea temperature - Hot Soup

Peak tourist season

86% of annual peak - expect crowds and high prices

Plenty of sunshine

11.4h of sunshine daily

Good For

  • 💼
    Business travelers

    Climate-controlled meetings unaffected by weather

Who Should Avoid

  • 💰
    Budget travelers

    Peak season means premium prices everywhere

  • 👨‍👩‍👧‍👦
    Families with children

    39°C heat index dangerous for children

  • 👴
    Elderly travelers

    Heat index of 39°C poses health risks

  • 💼
    Business travelers

    Storm season may cause flight disruptions

930 observations30-year historical data
Confidence: 99%

"According to 30YearWeather's analysis of 30 years of NASA POWER satellite data,Charleston in July averages 31°C with 43% precipitation probability."

📊 Source: 30YearWeather.com🛰️ Data: NASA POWER (1991-2021)View Methodology →

Frequently Asked Questions: Charleston in July

What are the temperatures in Charleston in July?

Daytime highs average 31°C, nights drop to 25°C. Temperatures remain fairly consistent.

How many rainy days in Charleston in July?

Expect around 31 days with measurable rainfall. An umbrella is advisable.

What to wear in Charleston in July?

Light, breathable fabrics. Don't forget sunglasses and a hat.

Is July peak season in Charleston?

This is shoulder season—moderate prices and manageable crowds.