Myrtle Beach (SC) Temperature by Month

The average annual maximum temperature in Myrtle Beach, South Carolina, United States of America is 23°C (73°F), with daytime highs ranging from 13°C (55°F) in January to 31°C (88°F) in July. This page covers monthly averages, day-night differences, and how Myrtle Beach compares to cities worldwide.

The weather in Myrtle Beach experiences significant differences between warm and cold seasons, with big shifts in temperature. At night, minimum temperatures range from 23°C (73°F) in July to 3°C (37°F) in January.

The chart below illustrates the average maximum day and minimum night temperatures in Myrtle Beach by month:

The coldest point of the day usually falls between 4 AM and 6 AM, with temperatures peaking around 3 PM.

The chart below shows the average temperature throughout the year:

Myrtle Beach's average annual maximum temperature is 23°C (73°F). To put that in context, here's how it compares to a few well-known destinations:

Barcelona, Spain has an annual average of around 21°C (70°F), with warm summers and mild, fairly short winters.

On the cooler end, Oslo, Norway averages just 10°C (50°F) annually, with pleasant summers but long, cold winters.

Osaka, Japan averages 22°C (72°F) annually, with hot humid summers, mild winters, and pleasant spring and autumn seasons.

Melbourne, Australia averages 20°C (68°F) annually, known for unpredictable weather, with four seasons sometimes happening in one day.

Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.

The readings come from a range of sources, land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.

Global average temperatures have risen by around 1.2°C since the pre-industrial era, and the effects are visible across many regions. Winters are milder on average, with fewer frost days and less snow in many parts of the world. Heatwaves are more frequent and more intense, and Europe's summers of 2018, 2019, and 2020 all set records.

Summers are also getting drier in some areas, while winter rainfall has increased in others. This contributies to higher river levels and more flooding. In many countries, spring arrives earlier and autumn lasts longer. It has knock-on effects for wildlife, agriculture, and local ecosystems.

For more on Myrtle Beach's weather, including monthly rainfall, sunshine hours, and humidity, visit our Myrtle Beach climate page.