May weather forecast and climate
Sydney, Australia

The landmarks of the city of Sydney, Australia
The landmarks of the city of Sydney, Australia
The last month of the autumn, May, is also an enjoyable month in Sydney, Australia, with average temperature ranging between min 11.6°C (52.9°F) and max 19.5°C (67.1°F).

Temperature

In Sydney, the average high-temperature is practically the same as in April - a comfortable 19.5°C (67.1°F). In May, in Sydney, the average low-temperature is 11.6°C (52.9°F).

Humidity

In May, the average relative humidity is 57%.

Rainfall

In Sydney, Australia, it is raining for 13 days, with typically 119.9mm (4.72") of accumulated precipitation. In Sydney, during the entire year, the rain falls for 143.4 days and collects up to 1212.1mm (47.72") of precipitation.

Sea temperature

In Sydney, the average water temperature is 20.8°C (69.4°F).
Note: For swimming, a surface water temperature of 20.8°C (69.4°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).

Daylight

In Sydney, the average length of the day is 10.4h.

Sunshine

In Sydney, the average sunshine in May is 6.3h.

UV index

In Sydney, the average daily maximum UV index in May is 3. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to the UV radiation for the average person.
Note: The daily maximum UV index of 3 interpret into the following advice:
Take precautions - Protection against sunburn is recommended. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

What is the temperature in May in Sydney?

The average high-temperature, in May, in Sydney, Australia, is 19.5°C (67.1°F), while the average low-temperature is 11.6°C (52.9°F).

What is the average humidity in May in Sydney?

In May, the average relative humidity in Sydney is 57%.

How much does it rain in Sydney in May?

In Sydney, Australia, during May, the rain falls for 13 days and regularly aggregates up to 119.9mm (4.72") of precipitation.

How cold is the water in May in Sydney?

In May, the average sea temperature is 20.8°C (69.4°F). Swimming in 20.8°C (69.4°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).

What is the average length of the day in May in Sydney?

In Sydney, the average length of the day in May is 10.4h.

How many hours of sunshine does Sydney have in May?

The average sunshine in May in Sydney is 6.3h.

What is the UV index reading in May in Sydney?

The average daily maximum UV index in May is 3. A UV Index reading of 3 to 5 represents a medium health risk from unsafe exposure to the Sun's UV rays.
Average temperature in May - Sydney, Australia
  • Average high temperature in May: 19.5°C

The warmest month (with the highest average high temperature) is January (25.9°C).
The month with the lowest average high temperature is July (16.3°C).

  • Average low temperature in May: 11.6°C

The month with the highest average low temperature is February (18.8°C).
The coldest month (with the lowest average low temperature) is July (8.1°C).

Average humidity in May - Sydney, Australia
  • Average humidity in May: 57%

The month with the highest relative humidity is February (64%).
The month with the lowest relative humidity is August (49%).

Average rainfall in May - Sydney, Australia
  • Average rainfall in May: 119.9mm

The wettest month (with the highest rainfall) is June (131.9mm).
The driest month (with the least rainfall) is September (68.3mm).

Average rainfall days in May - Sydney, Australia
  • Average rainfall days in May: 13 days

The month with the highest number of rainy days is March (13.6 days).
The month with the least rainy days is August (10.4 days).

Average sea temperature in May - Sydney, Australia
  • Average sea temperature in May: 20.8°C

The best month for swimming (with the highest average sea temperature) is February (23.7°C).
The coldest month (with the lowest average sea temperature) is September (18.6°C).

Average daylight in May / Average sunshine in May - Sydney, Australia
  • Average daylight in May: 10.4h

The month with the longest days is December (Average daylight: 14.4h).
The month with the shortest days is June (Average daylight: 9.9h).

  • Average sunshine in May: 6.3h

Months with the most sunshine are August, September, October and December (Average sunshine: 7.9h).
The month with the least sunshine is June (Average sunshine: 5.9h).

Average UV index in May - Sydney, Australia
  • Average UV index in May: 3

Months with the highest UV index are January and December (UV index 12).
The month with the lowest UV index is June (UV index 2).