May Weather in Melbourne, United States

Last updated: June 24, 2025

In Melbourne, United States, the average temperature in May hovers around 20°C (69°F). However, you can expect a range, with minimums dipping to 4°C (39°F) and maximums soaring up to 33°C (93°F). This month also brings 165 mm (6.5 in) of precipitation over 15 days, resulting in an average humidity of 83%—perfect for enjoying the lush greenery!

May Temperature in Melbourne

In May in Melbourne, the average temperature is 20°C (69°F), with maximums reaching 33°C (93°F) and minimums dipping as low as 4°C (39°F). This range makes it an ideal destination for travelers seeking a comfortable climate for outdoor activities and sightseeing.

May Weather in Melbourne: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Melbourne, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Melbourne, May typically has an average temperature of 20°C (69°F), with highs reaching up to 33°C (93°F) and lows dropping to around 4°C (39°F).

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

May Precipitation in Melbourne

In Melbourne in May, the total precipitation amount is 165 mm (6.5 in) over a span of 15 days.

May Precipitation Trends in Melbourne

The chart displays monthly precipitation patterns in Melbourne, 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 Melbourne, May typically receives around 165 mm (6.5 inches) of precipitation spread over approximately 15 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 Melbourne

In Melbourne in May, humidity is 83%. With an average temperature of 20°C (69°F), this humidity feels like a warm embrace, making every step slightly more laborious and the air thick with moisture, which can be quite stifling for traveling.

May Average Humidity in Melbourne

This chart illustrates the average monthly humidity levels in Melbourne, 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 Melbourne is approximately 83%, 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 Melbourne

In Melbourne in May, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Melbourne.

Maximum UV Index Levels in Melbourne for May

The chart shows the monthly maximum UV Index (UVI) for Melbourne 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 Melbourne typically reaches 10, which falls under the very high exposure category.

Data source: Melbourne 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 Melbourne Compares to Other Months

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

This table compares monthly weather conditions in Melbourne, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	4°C (39°F)	75 mm (2.9 inches)	84%	moderate
February Weather	5°C (42°F)	118 mm (4.6 inches)	83%	high
March Weather	11°C (52°F)	138 mm (5.4 inches)	81%	very high
April Weather	15°C (58°F)	148 mm (5.8 inches)	81%	very high
May Weather	20°C (69°F)	165 mm (6.5 inches)	83%	very high
June Weather	25°C (77°F)	91 mm (3.6 inches)	83%	extreme
July Weather	27°C (81°F)	82 mm (3.2 inches)	81%	extreme
August Weather	26°C (79°F)	111 mm (4.4 inches)	74%	very high
September Weather	24°C (75°F)	80 mm (3.2 inches)	71%	very high
October Weather	16°C (62°F)	104 mm (4.1 inches)	76%	high
November Weather	9°C (49°F)	80 mm (3.1 inches)	84%	moderate
December Weather	7°C (44°F)	90 mm (3.5 inches)	88%	moderate