March Weather in Charleston, Australia

Last updated: August 22, 2025

In March, the average temperature in Charleston, Australia is a pleasant 18°C (65°F). However, temperatures can vary significantly, with a minimum of 6°C (43°F) and soaring up to a maximum of 39°C (102°F). Expect a bit of rain, with an average precipitation of 11 mm (0.4 in) spread over 3 days. Humidity levels hover around 55%, ensuring a comfortable atmosphere for both locals and visitors alike.

March Temperature in Charleston

In March in Charleston, the average temperature is 18°C (65°F). Temperatures can peak at 39°C (102°F) and dip as low as 6°C (43°F). Be prepared for a wide range of temperatures and pack accordingly for your travels!

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

The chart illustrates March 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, March typically has an average temperature of 18°C (65°F), with highs reaching up to 39°C (102°F) and lows dropping to around 6°C (43°F).

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

March Precipitation in Charleston

In Charleston in March, the precipitation amount is 11 mm (0.4 in) over the course of 3 days.

March Precipitation Trends in Charleston

The chart displays monthly precipitation patterns in Charleston, with values for each month alongside March’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how March’s conditions compare to those of other months. In Charleston, March typically receives around 11 mm (0.4 inches) of precipitation spread over approximately 3 days.

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

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Millimeters (mm) Inches (in)

March Humidity in Charleston

In Charleston in March humidity is 55%. With an average temperature of 18°C (65°F), this humidity feels like a gentle embrace, creating a comfortable yet slightly sticky atmosphere that is perfect for leisurely strolls and outdoor adventures.

March Average Humidity in Charleston

This chart illustrates the average monthly humidity levels in Charleston, with March’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In March, average humidity in Charleston is approximately 55%, offering insight into how humid the weather typically is during this month.

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

March UV Index in Charleston

In Charleston in March, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Charleston.

Maximum UV Index Levels in Charleston for March

The chart shows the monthly maximum UV Index (UVI) for Charleston in March, 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 March, the maximum UV index in Charleston typically reaches 12, which falls under the extreme exposure category.

Data source: Charleston March 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 March 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 March’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 March’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