Mount Pleasant Temperature by Month
The average annual maximum temperature in Mount Pleasant, United States of America is 24°C (75°F), with daytime highs ranging from 15°C (59°F) in January to 32°C (90°F) in August. This page covers monthly averages, day-night differences, and how Mount Pleasant compares to cities worldwide.
Mount Pleasant Monthly Temperatures
The climate in Mount Pleasant is known for significant temperature differences throughout the year. At night, this contrast is just as clear, with lows ranging from 24°C (75°F) in August to 5°C (41°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Mount Pleasant by month:
From around 4 AM to 6 AM temperatures are at their lowest; by 3 PM they've climbed to their daily peak. August, the warmest month, averages 257 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Mount Pleasant 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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Mount Pleasant vs World: Temperature Compared
Mount Pleasant's average annual maximum temperature is 24°C (75°F). To put that in context, here's how it compares to a few well-known destinations:
Athens, Greece sits at 23°C (73°F) on average, with hot dry summers and mild winters characteristic of the Mediterranean.
Zermatt, Switzerland averages just 4°C (39°F) annually due to its altitude, with very cold winters and cool summers even at its warmest.
Osaka, Japan averages 22°C (72°F) annually, with hot humid summers, mild winters, and pleasant spring and autumn seasons.
Tokyo, Japan averages 21°C (70°F) a year, with hot summers, cool winters, and a well-defined cherry blossom spring.
What Does the Temperature Feel Like in Mount Pleasant?
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 Mount Pleasant, January is the coolest month, with average highs of 15°C (59°F) and humidity around 69% — considered high. In August, the warmest month, temperatures average 32°C (90°F) with 79% 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.
Whether a city sits on the coast or deep inland makes a significant difference to its climate. Coastal areas tend to have more stable temperatures year-round — large bodies of water absorb heat slowly in summer and release it gradually in winter, keeping extremes in check. Cities far from the sea don't benefit from that buffer, which is why continental climates tend to have hotter summers and colder winters than their coastal counterparts at the same latitude.
For more on Mount Pleasant's weather — including monthly rainfall, sunshine hours, and humidity — visit our Mount Pleasant climate page.
