June Weather in Charleston, Australia

Last updated: August 22, 2025

In June, the average temperature in Charleston, Australia hovers around 9°C (49°F), with a minimum dipping to -1°C (31°F) and a maximum reaching up to 21°C (69°F). Precipitation totals about 42 mm (1.7 in) over 9 days, while the average humidity sits at a comfortable 76%. Prepare for a month of dynamic weather!

June Temperature in Charleston

In June in Charleston, the average temperature is 9°C (49°F). Maximums can reach 21°C (69°F) and minimums can be as low as -1°C (31°F). This makes it an ideal time for travelers to experience a range of weather conditions, so be sure to pack appropriately for both warm and cool days.

June Weather in Charleston: Daily Temperature Highs, Lows, and Averages

The chart illustrates June temperature patterns in Charleston, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Charleston, June typically has an average temperature of 9°C (49°F), with highs reaching up to 21°C (69°F) and lows dropping to around -1°C (31°F).

Data source: Temperature data for Charleston generated using information from the Copernicus Climate Change Service.

June Precipitation in Charleston

In Charleston in June, the precipitation amount is 42 mm (1.7 in) spread over 9 days.

June Precipitation Trends in Charleston

The chart displays monthly precipitation patterns in Charleston, with values for each month alongside June’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how June’s conditions compare to those of other months. In Charleston, June typically receives around 42 mm (1.7 inches) of precipitation spread over approximately 9 days.

Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

June Humidity in Charleston

In Charleston in June, humidity is 76%. With an average temperature of 9°C (49°F), this humidity feels like a chilly embrace, making outdoor adventures a bit uncomfortable as the dampness seeps into your clothes and lingers in the air, often leading to a sense of coolness that can be refreshing but also dampens the joy of exploration.

June Average Humidity in Charleston

This chart illustrates the average monthly humidity levels in Charleston, with June’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In June, average humidity in Charleston is approximately 76%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for June generated using information from the Copernicus Climate Change Service.

June UV Index in Charleston

In Charleston in June, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Charleston, you can check the information here.

Maximum UV Index Levels in Charleston for June

The chart shows the monthly maximum UV Index (UVI) for Charleston in June, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In June, the maximum UV index in Charleston typically reaches 3, which falls under the moderate exposure category.

Data source: Charleston June UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How June Weather in Charleston Compares to Other Months

Weather in Charleston varies notably across the year, with each month offering distinct climate conditions. This page compares June’s weather to other months in Charleston, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Charleston, showing how June’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	21°C (69°F)	17 mm (0.7 inches)	41%	extreme
February Weather	19°C (66°F)	22 mm (0.9 inches)	46%	extreme
March Weather	18°C (65°F)	11 mm (0.4 inches)	55%	extreme
April Weather	15°C (60°F)	26 mm (1.0 inches)	66%	very high
May Weather	12°C (53°F)	39 mm (1.5 inches)	73%	moderate
June Weather	9°C (49°F)	42 mm (1.7 inches)	76%	moderate
July Weather	9°C (49°F)	53 mm (2.1 inches)	76%	moderate
August Weather	9°C (49°F)	65 mm (2.6 inches)	70%	moderate
September Weather	11°C (53°F)	40 mm (1.6 inches)	65%	very high
October Weather	14°C (57°F)	38 mm (1.5 inches)	51%	very high
November Weather	17°C (62°F)	44 mm (1.7 inches)	50%	extreme
December Weather	19°C (66°F)	18 mm (0.7 inches)	46%	extreme