May weather forecast
Sydney, Australia

The landmarks of the city of Sydney, Australia
The landmarks of the city of Sydney, Australia

Weather in May

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

Temperature

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

Humidity

The average relative humidity in May is 57%.

Rainfall

In Sydney, during 13 rainfall days, 119.9mm (4.72") of precipitation is typically accumulated. Throughout the year, in Sydney, there are 143.4 rainfall days, and 1212.1mm (47.72") of precipitation is accumulated.

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, Australia, the average length of the day in May is 10h and 23min.
On the first day of May, sunrise is at 6:29 am and sunset at 5:15 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 4:54 pm AEST.

Sunshine

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 medium health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: The daily maximum UV index of 3 in May interpret into the following advice:
Take precautions - Protection against sunburn is recommended. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the average humidity in May in Sydney?

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

How many days does it rain in May in Sydney?

In Sydney, in May, during 13 rainfall days, 119.9mm (4.72") of precipitation is typically accumulated.

What is the sea temperature in May in Sydney?

In Sydney, Australia, in May, the average water temperature is 20.8°C (69.4°F). For most, swimming in 20.8°C (69.4°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F).

How many hours of daylight does Sydney have in May?

In May, the average day length is 10h and 23min.

When is the sunrise / sunset in May in Sydney?

In May, on the first day of the month, sunrise is at 6:29 am and sunset at 5:15 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 4:54 pm AEST.

How long on average sun shines in May in Sydney?

The average sunshine duration in May is 6.3h.

What is the UV index intensity in May in Sydney?

In Sydney, Australia, the average daily maximum UV index in May is 3. A UV Index reading of 3 to 5 represents a medium health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average sunshine
Average UV index

Average temperature in May
Sydney, Australia

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).

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Average humidity in May
Sydney, Australia

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%).

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Average rainfall in May
Sydney, Australia

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).

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Average rainfall days in May
Sydney, Australia

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).

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Average sea temperature in May
Sydney, Australia

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).

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Average daylight in May /
Average sunshine in May
Sydney, Australia

Average daylight in May / Average sunshine in May - Sydney, Australia
  • Average daylight in May: 10h and 23min

The month with the longest days is December (Average daylight: 14h and 22min).
The month with the shortest days is June (Average daylight: 9h and 56min).

  • Average sunshine in May: 6h and 18min

The months with the most sunshine are August, September, October and December (Average sunshine: 7h and 54min).
The month with the least sunshine is June (Average sunshine: 5h and 54min).

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Average UV index in May
Sydney, Australia

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

The 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).

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