Saint George (SC) Temperature by Month
The average annual maximum temperature in Saint George, South Carolina, United States of America is 25°C (77°F), with daytime highs ranging from 15°C (59°F) in January to 34°C (93°F) in July. This page covers monthly averages, day-night differences, and how Saint George compares to cities worldwide.
Saint George Monthly Temperatures
In Saint George, temperatures can shift dramatically between very warm in summer and mild in winter. Nights follow the same pattern, with lows ranging from 22°C (72°F) in July to 2°C (36°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Saint George by month:
The coldest point of the day usually falls between 4 AM and 6 AM, with temperatures peaking around 3 PM. July, the city's warmest month, gets 288 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Saint George vs the United States of America
The map below shows the annual temperature across the United States of America. You can also select individual months if you want to compare a specific time of year.
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Saint George vs World: Temperature Compared
Saint George's average annual maximum temperature is 25°C (77°F). To put that in context, here's how it compares to a few well-known destinations:
Seville, Spain averages 23°C (73°F) a year — one of the warmer cities in Western Europe, with long hot summers.
Zermatt, Switzerland averages just 4°C (39°F) annually due to its altitude, with very cold winters and cool summers even at its warmest.
Buenos Aires, Argentina averages 23°C (73°F) a year, with hot summers and mild winters — and seasons reversed compared to Europe.
Perth, Australia averages 25°C (77°F) annually, with a classic Mediterranean climate — hot dry summers and mild wet winters.
What Does the Temperature Feel Like in Saint George?
Temperature alone doesn't tell the whole story — humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.
In Saint George, January is the coolest month, with average highs of 15°C (59°F) and humidity around 69% — considered high. In July, the warmest month, temperatures average 34°C (93°F) with 76% humidity — conditions that feel high. For a full picture, see our humidity page.
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.
Seasonal temperature shifts influence more than just how warm it feels — they also drive changes in rainfall, cloud cover, and wind patterns throughout the year.
Warmer air holds more moisture, which tends to mean heavier or more frequent rain during the warmer months. When temperatures drop in winter, any precipitation that does fall is more likely to come as snow or sleet, though in Saint George this rarely lasts long on the ground.
For more on Saint George's weather — including monthly rainfall, sunshine hours, and humidity — visit our Saint George climate page.
