May weather forecast
Upper Swan, Australia

May

Weather in May

The last month of the autumn, May, is another pleasant month in Upper Swan, Australia, with temperature in the range of an average low of 11.7°C (53.1°F) and an average high of 20.8°C (69.4°F).

Temperature

May signals a slight drop in average high-temperature, sliding from April's moderately hot 25.5°C (77.9°F) to an agreeable 20.8°C (69.4°F). Upper Swan registers a consistent average low-temperature of 11.7°C (53.1°F) during May.

Humidity

In Upper Swan, the average relative humidity in May is 66%.

Rainfall

In Upper Swan, in May, during 8.1 rainfall days, 28mm (1.1") of precipitation is typically accumulated. In Upper Swan, during the entire year, the rain falls for 100 days and collects up to 290mm (11.42") of precipitation.

Daylight

In Upper Swan, the average length of the day in May is 10h and 31min.
On the first day of the month, sunrise is at 6:47 am and sunset at 5:38 pm. On the last day of May, sunrise is at 7:07 am and sunset at 5:20 pm AWST.

Sunshine

The average sunshine in May in Upper Swan, Australia, is 6.5h.

UV index

The months with the lowest UV index are May through August, with an average maximum UV index of 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for average individuals.
Note: During May, 4 as the daily maximum UV index converts into the following advice:
Guard yourself - An obligation to protect skin and eyes from harm exists. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.

Frequently asked questions

What is the usual temperature for Upper Swan in May?
May temperatures in Upper Swan vary between a high-temperature of 20.8°C (69.4°F) and a low-temperature of 11.7°C (53.1°F). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines relative humidity and air temperature, in March is computed to be 30°C (86°F).
What is the average humidity in May in Upper Swan?
In May, the average relative humidity in Upper Swan, Australia, is 66%.
How many days does it rain in May in Upper Swan?
In Upper Swan, Australia, during May, the rain falls for 8.1 days and regularly aggregates up to 28mm (1.1") of precipitation.
What is the average length of the day in May in Upper Swan?
In May, the average day length in Upper Swan is 10h and 31min.
When is the sunrise / sunset in May in Upper Swan?
In May, on the first day of the month, sunrise is at 6:47 am and sunset at 5:38 pm. On the last day of the month, in Upper Swan, sunrise is at 7:07 am and sunset at 5:20 pm AWST.
How long on average sun shines in May in Upper Swan?
The average sunshine duration in May in Upper Swan is 6.5h.
When is the lowest UV index in Upper Swan?
May through August, with an average maximum UV index of 4, are months with the lowest UV index.
What is the UV index intensity in May in Upper Swan?
In May, the average daily maximum UV index in Upper Swan, Australia, is 4. A UV Index value of 3 to 5 symbolizes a medium health risk from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in May
Upper Swan, Australia
  • Average high temperature in May: 20.8°C

The warmest month (with the highest average high temperature) is February (32°C).
The month with the lowest average high temperature is July (16.8°C).

  • Average low temperature in May: 11.7°C

The month with the highest average low temperature is February (18.9°C).
The coldest month (with the lowest average low temperature) is August (8.5°C).

Average pressure in May
Upper Swan, Australia
  • Average pressure in May: 1019.9mbar

The month with the highest atmospheric pressure is July (1020.7mbar).
The month with the lowest atmospheric pressure is January (1011mbar).

Average wind speed in May
Upper Swan, Australia
  • Average wind speed in May: 10km/h

The windiest months (with the highest average wind speed) are January and February (12.6km/h).
The calmest months (with the lowest average wind speed) are May and July (10km/h).

Average humidity in May
Upper Swan, Australia
  • Average humidity in May: 66%

The months with the highest relative humidity are July and August (78%).
The month with the lowest relative humidity is January (49%).

Average rainfall in May
Upper Swan, Australia
  • Average rainfall in May: 28mm

The wettest month (with the highest rainfall) is June (51mm).
The driest months (with the least rainfall) are March and December (9mm).

Average rainfall days in May
Upper Swan, Australia
  • Average rainfall days in May: 8.1 days

The month with the highest number of rainy days is July (13.5 days).
The month with the least rainy days is February (4.8 days).

Average daylight in May /
Average sunshine in May
Upper Swan, Australia
  • Average daylight in May: 10h and 3min

The month with the longest days is December (Average daylight: 14h and 12min).
The month with the shortest days is June (Average daylight: 10h and 6min).

  • Average sunshine in May: 6h and 3min

The months with the most sunshine are January and December (Average sunshine: 11h and 30min).
The month with the least sunshine is August (Average sunshine: 5h and 42min).

Average sunshine days in May
Upper Swan, Australia
  • Average sunshine days in May: 21.7 days

The month with the most sunshine days is December (24.5 days).
The month with the least sunshine days is July (15.1 days).

Average UV index in May
Upper Swan, Australia
  • Average UV index in May: 4

The month with the highest UV index is February (UV index 7).
The months with the lowest UV index are May, June, July and August (UV index 4).

Average cloud cover in May
Upper Swan, Australia
  • Average cloud cover in May: 28

The months with the most cloud cover are July and August (Cloud cover 41).
The month with the least cloud cover is January (Cloud cover 14).

Average visibility in May
Upper Swan, Australia
  • Average visibility in May: 9km

The months with the highest visibility are January, February, March, April, November and December (10km).
The months with the lowest visibility are May, June, July, August, September and October (9km).

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