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Charleston in June: Weather, Average temperature and Climate

Planning a trip and want to know what the weather in Charleston in June will be like? Take a look at our weather guide for Charleston, based on historical data.
Check flight prices to Charleston on Avionero:
June

Weather in Charleston in June 2026

OK Weather
Warm
🌧️
Rainy
If you plan to visit Charleston in June, the weather is typically alright, with an average high temperature of +86°F during the day and approximately 5 sunny days. Expect some rainy, though, as there are typically 19 rainy days in the month and around 136 mm of precipitation. The weather is changeable so you may have to pack for every eventuality. Search flights in one click on Avionero.

Average weather

☀️
+86°F
Avg. max. temperature
+55°F
Min.
+100°F
Max.
136 mm
Total precipitation
79%
Avg. humidity
3 m/s
Avg. wind
5 ☀️
Sunny Days
4 ⛅️
Cloudy
19 🌦
Rainy
Our opinion: Charleston has OK weather in June.

Average temperature in Charleston in June

Here are the expected maximum, average and minimum temperatures in Charleston for June based on the historical data.
Last Year
Historical Data

Going from a maximum of +93°F during the day to a minimum of +61°F during the night, the temperature in June averages around +84°F.

The average maximum temperature goes up 22% by the end of the month, compared with the beginning of the month, from +81°F to +88°F.

Is Charleston warm or cold in June?

Charleston is typically warm in June.

Maximum temperatures go up compared to the previous month from +81°F to +86°F. The minimum temperature also goes up from +66°F to +73°F.

It’s generally warm, but pack a long-sleeve shirt for evenings.

June is one of the warmest months in Charleston, here is the comparison with other months:

Climate in Charleston in June

Charleston weather looks like this, on average, in June and the surrounding months.
MayJuneJuly
Avg. temperature
+81°F+86°F+88°F
Min. temperature
+48°F+55°F+64°F
Max. temperature
+100°F+100°F+99°F
Rainfall
74 mm136 mm151 mm
Wind
3 m/s3 m/s3 m/s
Humidity
76%79%80%
Air pressure
1015 HPa1015 HPa1016 HPa
Sunny days
953
Cloudy days
844
Rainy days
141922
Snowy days
000

June typically has worse weather conditions compared to May. It’s getting warmer as June arrives. The average maximum temperature goes up from +81°F to +86°F during the day. Prepare for more rain. Average rainfall goes from 74 mm to 136 mm. Humidity rises from 76% to 79%. The average wind speed doesn’t change much during June, staying around 3 m/s. The days becoming less sunny, going from 9 sunny days in May to 5 in June.

July brings much the same weather, it remains ok.

Wind

Wind speed in Charleston in June based on historical data.
Last Year
Historical Data

The average wind speed is 3 m/s getting up to 5 m/s which is a light breeze; barely moving the tree leaves.

The average wind speed in Charleston is gradually decreasing during June, going from 3 m/s to 2 m/s over the course of the month.

Rain

Amount of rainfall in mm during June in Charleston based on historical data.
Last Year
Historical Data
Typically, there is a 60% chance of rain on an average day in June, with total rainfall of approximately 198 mm. The maximum amount of rainfall per day is around 34 mm, which is moderate rain. June is a pretty wet month with over 18 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of wellies.
Here’s how June is compared with other months in the amount of precipitation, total mm:
Charleston wettest month is August, where a typical day has a 74% chance of precipitation and 179 mm of rainfall per day. November, on the other hand, is the driest month with a mere 33% chance of precipitation and 68 mm of rainfall per day.

How was the weather last June in Charleston?

This is the weather in Charleston in June 2024:
1 June
☀️
+80°F
2 June
☀️
+80°F
3 June
☀️
+82°F
4 June
☁️
+74°F
5 June
☀️
+77°F
6 June
☀️
+83°F
7 June
☀️
+87°F
8 June
🌫️
+80°F
9 June
☁️
+81°F
10 June
☀️
+84°F
11 June
☀️
+84°F
12 June
☀️
+85°F
13 June
☁️
+87°F
14 June
☀️
+82°F
15 June
🌧️
+82°F
16 June
☀️
+87°F
17 June
☀️
+84°F
18 June
☀️
+86°F
19 June
☀️
+84°F
20 June
🌧️
+81°F
21 June
🌧️
+84°F
22 June
🌧️
+83°F
23 June
🌧️
+83°F
24 June
☀️
+88°F
25 June
☀️
+89°F
26 June
☀️
+87°F
27 June
☀️
+93°F
28 June
☀️
+90°F
29 June
☀️
+89°F
30 June
☀️
+88°F
In June 2024 Charleston had 21 sunny days, 3 cloudy days, and 5 rainy days. The average maximum temperature was +84°F, with an absolute maximum of +93°F and a minimum of +75°F. The average humidity was 80%, with a maximum of 98% and a minimum of 41%. The average wind speed was 3 m/s, with a maximum of 9 m/s and a minimum of 0 m/s.
Are you planning a trip in June?

Climate Change Over the Years

This is how Charleston climate has changed over the last 43 years.

The climate in Charleston in June has not changed that much over the last 43 years.

The average temperature was the lowest in 1988 (+72°F) and the highest in 2012 (+77°F). The driest year was 2011 with only 770 mm of rainfall, and the wettest year was 2024 with 2044 mm.

FAQ

Frequently asked questions about the weather in Charleston in June:

Is June a good time to visit Charleston?

It’s always a good time to visit Charleston, but the weather is changeable in June, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.

Can you sunbathe in Charleston in June?

June is warm in Charleston. You may enjoy some beach or pool time in the day, but pack something a tad warmer for the evening.

Is Charleston rainy in June?

Charleston is often rainy in June. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.

Is it sunny in Charleston in June?

Usually, it’s not very sunny in Charleston in June, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.

Other cities in USA

Check out the weather for other cities in USA.

Monthly weather in Charleston

Source of the data

For this page, we’ve looked at the typical weather in Charleston, based on historical hourly weather data from January 1, 1979, to December 31, 2023.

For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.