nomadseason

May Weather in Sydney, Canada

Last updated: June 18, 2025

In May, the average temperature in Sydney, Canada hovers around 7°C (45°F). While you may experience a minimum chill of -1°C (30°F), be prepared for pleasant highs reaching up to 24°C (76°F). With an average humidity of 88%, you can expect a moist atmosphere, accompanied by 109 mm (4.3 in) of precipitation spread over 12 days. Perfect for cozy indoor activities or exploring the vibrant surroundings!

May Temperature in Sydney

In May in Sydney, the average temperature is 7°C (45°F), with maximums reaching 24°C (76°F) and minimums dropping as low as -1°C (30°F). Expect a range of weather conditions, so be sure to pack accordingly for your travels.

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

The chart illustrates May temperature patterns in Sydney, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sydney, May typically has an average temperature of 7°C (45°F), with highs reaching up to 24°C (76°F) and lows dropping to around -1°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec272528374455646860514133
Data source: Temperature data for Sydney generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Sydney

In Sydney in May, the total precipitation amount is 109 mm (4.3 in) during a span of 12 days.

May Precipitation Trends in Sydney

The chart displays monthly precipitation patterns in Sydney, 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 Sydney, May typically receives around 109 mm (4.3 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec113131118140109102936893108182134
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

May Humidity in Sydney

In Sydney in May humidity is 88%. With an average temperature of 7°C (45°F), this humidity feels like a damp chill that seeps into your bones, making traveling uncomfortable as you navigate through a heavy, thick atmosphere that clings to your skin.

May Average Humidity in Sydney

This chart illustrates the average monthly humidity levels in Sydney, 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 Sydney is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%87%87%87%88%89%91%90%86%82%83%83%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Sydney

In Sydney in May, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Sydney.

Maximum UV Index Levels in Sydney for May

The chart shows the monthly maximum UV Index (UVI) for Sydney 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 Sydney typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2357910887532
Data source: Sydney 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 Sydney Compares to Other Months

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

This table compares monthly weather conditions in Sydney, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (27°F)113 mm (4.5 inches)86%low
February Weather-4°C (25°F)131 mm (5.2 inches)87%moderate
March Weather-2°C (29°F)118 mm (4.6 inches)87%moderate
April Weather3°C (37°F)140 mm (5.5 inches)87%high
May Weather7°C (45°F)109 mm (4.3 inches)88%very high
June Weather13°C (55°F)102 mm (4.0 inches)89%very high
July Weather18°C (64°F)93 mm (3.7 inches)91%very high
August Weather20°C (68°F)68 mm (2.7 inches)90%very high
September Weather16°C (60°F)93 mm (3.7 inches)86%high
October Weather10°C (51°F)108 mm (4.2 inches)82%moderate
November Weather5°C (42°F)182 mm (7.2 inches)83%moderate
December Weather0°C (33°F)134 mm (5.3 inches)83%low

Compare Sydney's Climate with Cities Worldwide