May weather forecast
Hornsby, Australia

May

Weather in May

May, the last month of the autumn in Hornsby, is another comfortable month, with temperature in the range of an average low of 11.8°C (53.2°F) and an average high of 19.8°C (67.6°F).

Temperature

The start of May involves a subtle temperature drop, shifting from a pleasant 22.9°C (73.2°F) in April to a comfortable 19.8°C (67.6°F). Hornsby reports a consistent average low-temperature of 11.8°C (53.2°F) throughout May nights.

Humidity

In May, the average relative humidity in Hornsby is 70%.

Rainfall

In May, in Hornsby, Australia, the rain falls for 8.5 days. Throughout May, 35mm (1.38") of precipitation is accumulated. In Hornsby, during the entire year, the rain falls for 151.2 days and collects up to 570mm (22.44") of precipitation.

Daylight

In May, the average length of the day in Hornsby, Australia, is 10h and 23min.
On the first day of May in Hornsby, sunrise is at 6:30 am and sunset at 5:15 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 4:55 pm AEST.

Sunshine

The average sunshine in May is 7.7h.

UV index

May through September, with an average maximum UV index of 4, are months with the lowest UV index. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for average individuals.
Note: A maximum UV index of 4 in May translates into the following recommendations:
Undertake precautions - It is suggested to shield oneself from sunburn. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.

Frequently asked questions

What are May temperatures in Hornsby?
In May, in Hornsby, the average high-temperature is 19.8°C (67.6°F), and the average low-temperature is 11.8°C (53.2°F). In January, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which factors the actual air temperature with the relative humidity, is calculated to be 31°C (87.8°F).
What is the average humidity in May in Hornsby?
In Hornsby, Australia, the average relative humidity in May is 70%.
How many days does it rain in May in Hornsby?
In Hornsby, Australia, during May, the rain falls for 8.5 days and regularly aggregates up to 35mm (1.38") of precipitation.
How many hours of daylight does Hornsby have in May?
The average day length in May in Hornsby, Australia, is 10h and 23min.
What time are sunrise and sunset in May in Hornsby?
On the first day of May, sunrise is at 6:30 am and sunset at 5:15 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 4:55 pm AEST.
How many hours of sunshine does Hornsby have in May?
The average sunshine duration in May is 7.7h.
What is the month with the lowest UV index in Hornsby?
May through September, with an average maximum UV index of 4, are months with the lowest UV index in Hornsby, Australia.
What is the UV index reading in May in Hornsby?
In Hornsby, the average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to 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
Hornsby, Australia
  • Average high temperature in May: 19.8°C

The warmest month (with the highest average high temperature) is January (28.2°C).
The month with the lowest average high temperature is July (16.7°C).

  • Average low temperature in May: 11.8°C

The month with the highest average low temperature is January (19.3°C).
The coldest month (with the lowest average low temperature) is July (8.9°C).

Average pressure in May
Hornsby, Australia
  • Average pressure in May: 1020.2mbar

The month with the highest atmospheric pressure is June (1021mbar).
The month with the lowest atmospheric pressure is January (1012.9mbar).

Average wind speed in May
Hornsby, Australia
  • Average wind speed in May: 11km/h

The windiest months (with the highest average wind speed) are January, August, September and December (12.1km/h).
The calmest month (with the lowest average wind speed) is April (10.6km/h).

Average humidity in May
Hornsby, Australia
  • Average humidity in May: 70%

The month with the highest relative humidity is June (75%).
The months with the lowest relative humidity are August and September (66%).

Average rainfall in May
Hornsby, Australia
  • Average rainfall in May: 35mm

The wettest month (with the highest rainfall) is February (89mm).
The driest months (with the least rainfall) are July and September (30mm).

Average rainfall days in May
Hornsby, Australia
  • Average rainfall days in May: 8.5 days

The month with the highest number of rainy days is January (16.3 days).
The month with the least rainy days is May (8.5 days).

Average daylight in May /
Average sunshine in May
Hornsby, Australia
  • Average daylight in May: 10h and 2min

The month with the longest days is December (Average daylight: 14h and 18min).
The month with the shortest days is June (Average daylight: 10h and 0min).

  • Average sunshine in May: 7h and 4min

The month with the most sunshine is November (Average sunshine: 9h and 42min).
The month with the least sunshine is June (Average sunshine: 5h and 54min).

Average sunshine days in May
Hornsby, Australia
  • Average sunshine days in May: 19.5 days

The month with the most sunshine days is August (19.8 days).
The month with the least sunshine days is February (10.6 days).

Average UV index in May
Hornsby, Australia
  • Average UV index in May: 4

The months with the highest UV index are January, February, November and December (UV index 6).
The months with the lowest UV index are May, June, July, August and September (UV index 4).

Average cloud cover in May
Hornsby, Australia
  • Average cloud cover in May: 26

The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 24).

Average visibility in May
Hornsby, Australia
  • Average visibility in May: 10km

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

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