March Weather in Hornsby, Australia

Last updated: August 22, 2025

In Hornsby, Australia, the average temperature in March is a pleasant 21°C (70°F). However, temperatures can vary significantly, with a minimum of 10°C (49°F) and a scorching maximum of 40°C (104°F). Expect to experience some rainfall, as precipitation averages 153 mm (6.0 in) over about 17 days. On top of that, the average humidity is a tropical 72%, adding to the region's ambiance.

March Temperature in Hornsby

In March in Hornsby, the average temperature is 21°C (70°F). Maximum temperatures can reach up to 40°C (104°F), while minimum temperatures can drop as low as 10°C (49°F). This makes Hornsby a perfect destination for travelers looking to enjoy warm weather and a variety of outdoor activities.

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

The chart illustrates March temperature patterns in Hornsby, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hornsby, March typically has an average temperature of 21°C (70°F), with highs reaching up to 40°C (104°F) and lows dropping to around 10°C (49°F).

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

March Precipitation in Hornsby

In Hornsby in March, the precipitation amount is 153 mm (6.0 in) spread over 17 days.

March Precipitation Trends in Hornsby

The chart displays monthly precipitation patterns in Hornsby, 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 Hornsby, March typically receives around 153 mm (6.0 inches) of precipitation spread over approximately 17 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 Hornsby

In Hornsby in March, humidity is 72%. With an average temperature of 21°C (70°F), this humidity feels like a warm blanket wrapping around you, making outdoor activities a bit sticky and sweaty, but still manageable for traveling if you stay hydrated and take regular breaks in the shade.

March Average Humidity in Hornsby

This chart illustrates the average monthly humidity levels in Hornsby, 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 Hornsby is approximately 72%, 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 Hornsby

In Hornsby 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 Hornsby.

Maximum UV Index Levels in Hornsby for March

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

Data source: Hornsby 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 Hornsby Compares to Other Months

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

This table compares monthly weather conditions in Hornsby, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	24°C (76°F)	37 mm (1.5 inches)	65%	extreme
February Weather	23°C (74°F)	107 mm (4.2 inches)	69%	extreme
March Weather	21°C (70°F)	153 mm (6.0 inches)	72%	extreme
April Weather	18°C (65°F)	29 mm (1.1 inches)	75%	very high
May Weather	15°C (59°F)	42 mm (1.7 inches)	74%	moderate
June Weather	12°C (54°F)	44 mm (1.7 inches)	72%	moderate
July Weather	12°C (53°F)	40 mm (1.6 inches)	68%	moderate
August Weather	13°C (55°F)	34 mm (1.3 inches)	67%	high
September Weather	16°C (60°F)	36 mm (1.4 inches)	63%	very high
October Weather	18°C (65°F)	67 mm (2.6 inches)	55%	very high
November Weather	20°C (68°F)	77 mm (3.0 inches)	57%	extreme
December Weather	22°C (72°F)	76 mm (3.0 inches)	68%	extreme