The climate of Charleston
, a beautiful city nestled on the Atlantic coast of South Carolina
, USA, experiences a predominant Humid subtropical climate with Cfa representing its Köppen climate classification. This classification is generally characterized by hot, wet summers and cool winters. The aptly identified Humid subtropical climate implies that the city does not enter any substantial dry season throughout the year.
Consequently, shifts in temperature are witnessed throughout the year with the highest temperature of 88.2°F observed in July
and the lowest temperature of 44.4°F observed in January
. Humidity also displays marginal fluctuations throughout the year, achieving its peak of 78% in December
and a relatively lower value of 73% in March
. The wind speed also displays gradual transitions, varying from 7.5mph in August
to 9.4mph in April
, hence contributing to the city's humid subtropical climate.
When assessing rainfall, an interesting pattern emerges where the months of August to October
garner the highest amount of rainfall, with August seeing the peak rainfall of 7.13". On the other hand, January and November
are relatively drier months experiencing an average rainfall of 1.42" and 1.93" respectively. With such unique variations in weather patterns and conditions throughout the year, Charleston's climate certainly presents an intriguing picture.
The best time to visit Charleston
Given the overall climate conditions of Charleston
, the best time to visit largely depends on individual preferences for temperature and rainfall. Regardless, the months from March
emerge as an ideal timeframe for a visit. During these months, the average temperatures range from 57°F to 79.5°F, offering a relatively comfortable environment for outdoor activities. Alongwith the lower rainfall days in comparison to the later parts of the year and average daylight of around 12 hours, the spring months cater to a pleasant travel experience.
The worst time to visit Charleston
Contrarily, the months from June
may be considered as less desirable for travel plans to Charleston
. These months witness the highest temperatures reaching up to 87.4°F to 88.2°F. Along with the scorching temperatures, these months experience the highest number of rainfall days, impacting the comfort level of visitors and potentially interrupting outdoor plans.
Spring weather in Charleston
Spring in Charleston
, stretching from March
, offers a moderate climatic environment perfectly suited for outdoor activities. The average temperatures fluctuate from 57°F in March to a maximum of 79.5°F in May. The rainfall also follows an ascending pattern, with an average rainfall of 1.42" in March gradually increasing to 2.87" in May. Meanwhile, the daylight hours also show a noticeable increase, advancing from 12 hours in March to 13.9 hours in May.
Summer weather in Charleston
The summer months, June
, sees Charleston
's temperatures soar to higher levels, peaking at 88.2°F in July
. Combined with the absolute highest levels of average relative humidity, ranging from 75% to 76%, the overall weather conditions could be deemed as rather hard to cope with. Additionally, these months observe an uptick in rainfall with August garnering a substantial 7.13" of rainfall.
Autumn weather in Charleston
Autumn, spanning from September
, witnesses a downturn in temperatures when compared to the summer months. September starts off with an average temperature of 83.5°F that descends to 65.7°F in November. Furthermore, this season sees a decrease in rainfall days yet November still experiences 1.93" of rainfall, marking the onset of winters.
Winter weather in Charleston
The winters in Charleston
, falling between December
, bring about the year's lowest temperature readings, averaging from 60.8°F in December to the year's absolute lowest of 44.4°F in January
. Despite these cooler temperatures, the city records the year's peak relative humidity during these months, with December standing at 78%. Interestingly, despite low temperatures, snowfall days are significantly low with only 0.1 snowfall days recorded in December and 0.4 in January.
Weather in January
, South Carolina
brings chilly weather. After a cooler start to the year, temperatures start to climb. Despite being the coldest month, January still experiences some warm days. The climatic conditions here lean towards mild and moist, with frequent presence of thick clouds. Weather in January »
Weather in February
weather follows closely on the heels of January
. It is marked by a palpable nip in the air, accentuated by sporadic rainy days. However, the later part of the month witnesses a rebound in temperature. With an uptick in rainfall to 2.01", February effectively transitions the city from winter to early spring. Weather in February »
Weather in March
The vestiges of winter yield to balmy spring weather in March
. Charlestonites enjoy a more agreeable climate the month. Bright days with increased sunshine hours are characteristic, while cloud cover reduces. However, rains continue to pepper the month with 2.2" of rainfall. Weather in March »
Weather in April
By the time April
makes an appearance, Charleston
is firmly entrenched in spring. Warmer days, modest wind speeds, and reasonably clear skies define the month’s temperament. In terms of precipitation, April sets itself apart with the highest rainfall of 2.83" amidst 12.8 days of rain. Weather in April »
Weather in May
into the noisy, chaotic season of summer. As temperatures inch higher, residents brace for longer, sunnier days. Amidst these warming trends, the interesting facet of May's weather is the significantly high rainfall of 2.87" that the city receives. Weather in May »
Weather in June
right into the heart of summer. The prominence of sunny days combined with optimal sea temperatures marks the start of the busy tourist season. Dealing with the heat becomes easier for locals and visitors alike, as they find respite in the cooling evening sea breezes. Weather in June »
Weather in July
is a crucial month for Charleston
, marking the zenith of summer. The weather is typically hot and humid, with some rainfall offering brief respite from the neck-cranking heat. Standing at its peak, July signals a slight uptick in relative humidity at 75%. Weather in July »
Weather in August
continues the summer streak with sultry days and warm nights in Charleston
. While temperatures rise, they cool somewhat towards the end of the month signaling incoming Autumn. Recorded rainfall levels peak at 7.13" in August, making it the wettest month of the year. Weather in August »
Weather in September
is a month of transition for Charleston
. The weather takes on a more temperate feel as autumn sets in. Decreasing daily sunshine hours and a subtle dip in temperatures mark the shift from summer to autumn. Despite this, rainfall volume born out at 5", indicates that wet weather is still expected. In September, Charleston notes an average high-temperature of a moderately hot 83.5°F, hardly different from the preceding month. Weather in September »
Weather in October
embracing the autumn season in all its glory. Residents and tourists both enjoy the cooler temperatures and decreased rainfall. Though sunny days become more precious, October is favored for outdoor festivals and fall foliage viewing owing to the comfortable weather. Weather in October »
Weather in November
brings a significant shift in Charleston
's weather. Winter begins to make a comeback, breaking the sequence of warm months. However, despite a noticeable cooling trend, November retains a balanced climate that is neither too hot nor too cold. Weather in November »
Weather in December
residents brace for the winter chill. The change to colder weather is noticeable as daylight hours dwindle and twilight arrives earlier each day. A significant weather event in December is the increased precipitations at 4.25", cutting through the generally dry spell of preceding months. Weather in December »