May Weather in Saint Marys, Australia

Last updated: August 22, 2025

In May, the average temperature in Saint Marys, Australia hovers around 13°C (55°F). Expect minimums around 7°C (45°F) and maximums reaching 19°C (66°F). This month also sees approximately 43 mm (1.7 in) of precipitation over 7 days, with an average humidity level of 78%.

May Temperature in Saint Marys

In May in Saint Marys, the average temperature is 13°C (55°F). Maximum temperatures can reach 19°C (66°F), while the minimum can drop to as low as 7°C (45°F). Be prepared for mild weather and pack accordingly for both warm and cool moments during your travels.

May Weather in Saint Marys: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Saint Marys, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saint Marys, May typically has an average temperature of 13°C (55°F), with highs reaching up to 19°C (66°F) and lows dropping to around 7°C (45°F).

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

May Precipitation in Saint Marys

In Saint Marys in May, the total precipitation amount is 43 mm (1.7 in) spread over a period of 7 days.

May Precipitation Trends in Saint Marys

The chart displays monthly precipitation patterns in Saint Marys, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Saint Marys, May typically receives around 43 mm (1.7 inches) of precipitation spread over approximately 7 days.

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

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Millimeters (mm) Inches (in)

May Humidity in Saint Marys

In Saint Marys in May, humidity is 78%. With an average temperature of 13°C (55°F), this humidity feels like a damp blanket enveloping you, making outdoor activities feel steamy and your clothes cling uncomfortably, often leaving you longing for a cool breeze or an air-conditioned escape while exploring.

May Average Humidity in Saint Marys

This chart illustrates the average monthly humidity levels in Saint Marys, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Saint Marys is approximately 78%, offering insight into how humid the weather typically is during this month.

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

May UV Index in Saint Marys

In Saint Marys in May, 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 Saint Marys, you can check the information here.

Maximum UV Index Levels in Saint Marys for May

The chart shows the monthly maximum UV Index (UVI) for Saint Marys in May, 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 May, the maximum UV index in Saint Marys typically reaches 3, which falls under the moderate exposure category.

Data source: Saint Marys May 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 May Weather in Saint Marys Compares to Other Months

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

This table compares monthly weather conditions in Saint Marys, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	17°C (63°F)	64 mm (2.5 inches)	76%	extreme
February Weather	16°C (62°F)	77 mm (3.0 inches)	74%	extreme
March Weather	16°C (61°F)	86 mm (3.4 inches)	76%	very high
April Weather	14°C (58°F)	38 mm (1.5 inches)	75%	high
May Weather	13°C (55°F)	43 mm (1.7 inches)	78%	moderate
June Weather	11°C (52°F)	59 mm (2.3 inches)	77%	low
July Weather	10°C (50°F)	32 mm (1.3 inches)	79%	low
August Weather	10°C (50°F)	47 mm (1.8 inches)	78%	moderate
September Weather	11°C (51°F)	53 mm (2.1 inches)	77%	high
October Weather	12°C (54°F)	92 mm (3.6 inches)	75%	very high
November Weather	13°C (56°F)	62 mm (2.5 inches)	76%	very high
December Weather	15°C (59°F)	95 mm (3.7 inches)	76%	extreme