Myrtle Beach receives its highest rainfall in Aug, while humidity peaks during summer months.
🌧️ Wettest:Aug — 194 mm☀️ Driest:Apr — 85 mm
💧 Humidity peaks at 80% in Jul · annual avg 79%
🌍 Climate Summary
Avg Annual Temp:65.8°F
Avg Annual Rainfall:1475 mm
Avg Humidity:79%
Data Period:1981 – 2025
Myrtle Beach Climate Overview
Myrtle Beach has a warm subtropical climate with warm summers and mild winters.
Temperatures peak in Jul and drop to their lowest in Jan,
while rainfall is highest during summer months.
Humidity remains high throughout the year creating warm and humid conditions.
📈 Yearly Trends
The warmest year in Myrtle Beach's recorded history was 2011
(avg: 67.6°F),
while the coldest year was 1996
(avg: 64°F),
based on annual average temperatures.
📊 Key Climate Trends
🌡️ Myrtle Beach's temperature has remained relatively stable over the past decade
📊 Minimum temperatures have remained largely stable across the dataset
🌧️ Rainfall has decreased in recent years compared to earlier periods
🌡️ Annual Temperature Trend
View Range:
Average annual high/low · Last 10 years · °F
Myrtle Beach's temperatures has remained relatively stable over the past decade.
The highest recorded temperature reached
94.3°F in Aug 1999,
while the lowest dropped to
19.9°F in Jan 1985.
🌧️ Annual Precipitation
View Range:
Total annual precipitation · Last 10 years · mm/year
Annual rainfall in Myrtle Beach shows noticeable variation. Rainfall has decreased in recent years compared to earlier periods.
Based on 45 years of data (1981–2025), Jul is typically the hottest month in Myrtle Beach, South Carolina, with average high temperatures around 88.6°F.
What is the coldest month in Myrtle Beach?▼
Jan is the coldest month in Myrtle Beach, with average low temperatures around 33.8°F.
What is the rainiest month in Myrtle Beach?▼
Aug receives the most rainfall with approximately 194 mm, while Apr is the driest with 85 mm.
What was the highest temperature ever recorded in Myrtle Beach?▼
The highest recorded temperature was 94.3°F in Aug 1999. This is part of the historical record spanning 1981–2025.
What was the lowest temperature ever recorded in Myrtle Beach?▼
The lowest recorded temperature was 19.9°F in Jan 1985.
How many years of data does this page cover?▼
This page covers 45 years of climate data from 1981 to 2025. As new data is added to the database the page automatically reflects the updated coverage.
How much sunlight does Myrtle Beach get?▼
Myrtle Beach receives the most sunlight in Jun with an average solar radiation of 6.38 kWh/m²/day. This solar radiation data, sourced from NASA POWER, is useful for solar energy planning, agriculture, and understanding seasonal sunshine availability in South Carolina.
Where does this weather data come from?▼
All climate data is sourced from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite and model data. It provides monthly averages for temperature, precipitation, humidity, wind speed, and solar radiation.
📚 Data Source
All weather data is sourced from NASA POWER (Prediction of Worldwide Energy Resources), a NASA project providing solar and meteorological data for renewable energy, building efficiency, and agricultural research.