Adelaide
Australia
Long-term weather forecast
Long-term weather forecast

May weather forecast and climate
Adelaide, Australia

The last month of the autumn, May, is also an enjoyable month in Adelaide, Australia, with average temperature varying between 18.9°C (66°F) and 10.2°C (50.4°F).

Temperature

In May, the average high-temperature marginally drops, from an agreeable 22.7°C (72.9°F) in April, to an enjoyable 18.9°C (66°F). In Adelaide, Australia, in May, the average low-temperature is 10.2°C (50.4°F).

Humidity

The average relative humidity in May is 55%.

Rainfall

In Adelaide, Australia, it is raining for 12.1 days, with typically 59.9mm (2.4") of accumulated precipitation. In Adelaide, during the entire year, the rain falls for 120.5 days and collects up to 543.9mm (21.4") of precipitation.

Sea temperature

In Adelaide, the average seawater temperature in May is 18°C (64.4°F).
Note: For swimming, a surface water temperature of 18°C (64.4°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

The average length of the day in May is 10.3h.

Sunshine

In Adelaide, the average sunshine is 5.4h.

UV index

In May, the average daily maximum UV index in Adelaide is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to the UV radiation for average individuals.
Note: In May, the average maximum UV index of 3 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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 Adelaide?

In Adelaide, Australia, in May, the average high-temperature is 18.9°C (66°F), and the average low-temperature is 10.2°C (50.4°F).

What is the average humidity in May in Adelaide?

The average relative humidity in May in Adelaide is 55%.

How much does it rain in Adelaide in May?

In Adelaide, Australia, in May, during 12.1 rainfall days, 59.9mm (2.4") of precipitation is typically accumulated.

What is the sea temperature in May in Adelaide?

In Adelaide, the average seawater temperature in May is 18°C (64.4°F). For swimming, a surface water temperature of 18°C (64.4°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).

How many hours of daylight does Adelaide have in May?

In May, the average length of the day in Adelaide, Australia, is 10.3h.

How long on average sun shines in May in Adelaide?

The average sunshine in May in Adelaide, Australia, is 5.4h.

What is the UV index reading in May in Adelaide?

In Adelaide, the average daily maximum UV index in May is 3. A UV Index estimate of 3 to 5 represents a medium health risk from the exposure to the Sun's UV rays.
Average temperature in May - Adelaide, Australia
  • Average high temperature in May: 18.9°C

The warmest month (with the highest average high temperature) is February (29.4°C).
The month with the lowest average high temperature is July (15.3°C).

  • Average low temperature in May: 10.2°C

The month with the highest average low temperature is February (17.2°C).
The coldest month (with the lowest average low temperature) is July (7.5°C).

Average humidity in May - Adelaide, Australia
  • Average humidity in May: 55%

The month with the highest relative humidity is June (61%).
Months with the lowest relative humidity are January and February (36%).

Average rainfall in May - Adelaide, Australia
  • Average rainfall in May: 59.9mm

The wettest month (with the highest rainfall) is June (79.3mm).
The driest month (with the lowest rainfall) is February (13.5mm).

Average rainfall days in May - Adelaide, Australia
  • Average rainfall days in May: 12.1 days

The month with the highest number of rainy days is August (16.6 days).
The month with the lowest number of rainy days is February (3.6 days).

Average sea temperature in May - Adelaide, Australia
  • Average sea temperature in May: 18°C

The best month for swimming (with the highest average sea temperature) is February (20°C).
Coldest months (with the lowest average sea temperature) are August, September and October (15°C).

Average daylight in May / Average sunshine in May - Adelaide, Australia
  • Average daylight in May: 10.3h

The month with the longest days is December (Average daylight: 14.5h).
The month with shortest days is June (Average daylight: 9.8h).

  • Average sunshine in May: 5.4h

The month with most sunshine is January (Average sunshine: 10.5h).
The month with least sunshine is June (Average sunshine: 4.6h).

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

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