Climate and monthly weather forecastHornsby, Australia
Climate and monthly weather forecast
Weather in January
January, the same as December, is a moderately hot summer month in Hornsby, Australia, with an average temperature varying between 19.3°C (66.7°F) and 28.2°C (82.8°F). January, characterized by an average high temperature of 28.2°C (82.8°F) and a low temperature of 19.3°C (66.7°F), is generally the warmest month. January's heat index is calculated to be a tropical 31°C (87.8°F). Weather in January »Weather in February
February, the last month of the summer in Hornsby, is also a moderately hot month, with an average temperature fluctuating between 26.8°C (80.2°F) and 19°C (66.2°F). The arrival of February brings an average high-temperature of a still warm 26.8°C (80.2°F), subtly diverging from January's 28.2°C (82.8°F). Weather in February »Weather in March
The first month of the autumn, March, is also a moderately hot month in Hornsby, Australia, with an average temperature varying between 18.3°C (64.9°F) and 25.3°C (77.5°F). March brings an average high-temperature of a still warm 25.3°C (77.5°F), nearly identical to the preceding month. Weather in March »Weather in April
April, like March, is an agreeable autumn month in Hornsby, Australia, with an average temperature ranging between min 15.3°C (59.5°F) and max 22.9°C (73.2°F). The advent of April denotes an average high-temperature of a pleasant 22.9°C (73.2°F), subtly different from March's 25.3°C (77.5°F). Weather in April »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). 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). Weather in May »Weather in June
The first month of the winter, June, is also an enjoyable month in Hornsby, Australia, with temperature in the range of an average low of 10.2°C (50.4°F) and an average high of 16.8°C (62.2°F). A subtle shift in Hornsby's weather is observed as May turns into June, with the average high temperature reducing from 19.8°C (67.6°F) to a still comfortable 16.8°C (62.2°F). Weather in June »Weather in July
July, the same as June, is another comfortable winter month in Hornsby, Australia, with an average temperature varying between 16.7°C (62.1°F) and 8.9°C (48°F). The coldest temperatures occur during July, when averages reach a peak of 16.7°C (62.1°F) and a low of 8.9°C (48°F). Weather in July »Weather in August
The last month of the winter, August, is another comfortable month in Hornsby, Australia, with an average temperature ranging between max 18.2°C (64.8°F) and min 9.2°C (48.6°F). The advent of August presents an average high-temperature of a still comfortable 18.2°C (64.8°F), maintaining a close correlation with the preceding month. Weather in August »Weather in September
September, the first month of the spring in Hornsby, is an agreeable month, with an average temperature ranging between min 11.4°C (52.5°F) and max 21°C (69.8°F). The initiation of September records an average high-temperature of a pleasant 21°C (69.8°F), displaying a near consistency with the previous month. Weather in September »Weather in October
October in Hornsby, Australia, is a warm spring month, with an average temperature fluctuating between 23.3°C (73.9°F) and 13.7°C (56.7°F). As September transitions into October, the average high-temperature rests at a warm 23.3°C (73.9°F), maintaining a close resemblance to the previous month. Weather in October »Weather in November
The last month of the spring, November, is also a moderately hot month in Hornsby, Australia, with an average temperature fluctuating between 16°C (60.8°F) and 25.3°C (77.5°F). With the advent of November, Hornsby experiences an average high-temperature of a still warm 25.3°C (77.5°F), mirroring a close resemblance to the previous month. Weather in November »Weather in December
December, the first month of the summer in Hornsby, is also a moderately hot month, with an average temperature ranging between max 26.8°C (80.2°F) and min 17.7°C (63.9°F). The arrival of December is marked by an average high-temperature of a still warm 26.8°C (80.2°F), bearing a close resemblance to November. Weather in December »Updated: Jan 26, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
January is the warmest month in Hornsby, Australia, with the temperature often reaching an average high of 28.2°C (82.8°F) and an average low of 19.3°C (66.7°F).
In Hornsby, during the entire year, the rain falls for 151.2 days and collects up to 570mm (22.44") of precipitation.
January, February, November and December, with an average maximum UV index of 6, are months with the highest UV index.
The month with the most rainfall in Hornsby, Australia, is February, when the rain falls for 15.7 days and typically aggregates up to 89mm (3.5") of precipitation.
On Sunday, 07. April 2024, at 3:00 am, Daylight Saving Time ends, and the time zone changes from AEDT to AEST. The next Daylight Saving Time starts on Sunday, 06. October 2024, at 2:00 am, and the time zone reverts from AEST to AEDT.
May through September, with an average maximum UV index of 4, are months with the lowest UV index in Hornsby.
The most humid month is June, with an average relative humidity of 75%.
With an average of 10h and 0min of daylight, June has the shortest days of the year in Hornsby.
June has the least sunshine of the year, with an average of 5.9h of sunshine.
July stands out as Hornsby's coldest month, with an average high-temperature of 16.7°C (62.1°F) and a low-temperature of 8.9°C (48°F).
The months with the least rainfall are July and September Rain falls for 10.3 days and accumulates 30mm (1.18") of rain.
The months with the lowest humidity are August and September, with an average relative humidity of 66%.
November has the most sunshine of the year in Hornsby, Australia, with an average of 9.7h of sunshine.
The month with the longest days in Hornsby, Australia, is December, with an average of 14h and 18min of daylight.
Average temperature
Hornsby, Australia
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).
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
Hornsby, Australia
- Average pressure in January:
1012.9mbar - Average pressure in February:
1014.8mbar - Average pressure in March:
1017.1mbar - Average pressure in April:
1019.2mbar - Average pressure in May:
1020.2mbar - Average pressure in June:
1021mbar
- Average pressure in July:
1020.5mbar - Average pressure in August:
1018.1mbar - Average pressure in September:
1017.2mbar - Average pressure in October:
1017.8mbar - Average pressure in November:
1014.8mbar - Average pressure in December:
1013.3mbar
The month with the highest atmospheric pressure is June (1021mbar).
The month with the lowest atmospheric pressure is January (1012.9mbar).
Average wind speed
Hornsby, Australia
- Average wind speed in January:
12.1km/h - Average wind speed in February:
11.8km/h - Average wind speed in March:
11.4km/h - Average wind speed in April:
10.6km/h - Average wind speed in May:
11km/h - Average wind speed in June:
11.5km/h
- Average wind speed in July:
11.5km/h - Average wind speed in August:
12.1km/h - Average wind speed in September:
12.1km/h - Average wind speed in October:
11.8km/h - Average wind speed in November:
11.9km/h - Average wind speed in December:
12.1km/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
Hornsby, Australia
The month with the highest relative humidity is June (75%).
The months with the lowest relative humidity are August and September (66%).
Average rainfall
Hornsby, Australia
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
Hornsby, Australia
- Average rainfall days in January:
16.3 days - Average rainfall days in February:
15.7 days - Average rainfall days in March:
16 days - Average rainfall days in April:
13.4 days - Average rainfall days in May:
8.5 days - Average rainfall days in June:
12.7 days
- Average rainfall days in July:
10.3 days - Average rainfall days in August:
8.7 days - Average rainfall days in September:
9 days - Average rainfall days in October:
12 days - Average rainfall days in November:
13.8 days - Average rainfall days in December:
14.8 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 / Average sunshine
Hornsby, Australia
- Average daylight in January:
14h and 6min - Average daylight in February:
13h and 18min - Average daylight in March:
12h and 18min - Average daylight in April:
11h and 18min - Average daylight in May:
10h and 24min - Average daylight in June:
10h and 0min
- Average daylight in July:
10h and 12min - Average daylight in August:
10h and 54min - Average daylight in September:
11h and 54min - Average daylight in October:
12h and 54min - Average daylight in November:
13h and 54min - Average daylight in December:
14h and 18min
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 January:
8h and 24min - Average sunshine in February:
7h and 24min - Average sunshine in March:
7h and 42min - Average sunshine in April:
8h and 0min - Average sunshine in May:
7h and 42min - Average sunshine in June:
5h and 54min
- Average sunshine in July:
8h and 0min - Average sunshine in August:
8h and 30min - Average sunshine in September:
8h and 42min - Average sunshine in October:
8h and 24min - Average sunshine in November:
9h and 42min - Average sunshine in December:
9h and 36min
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
Hornsby, Australia
- Average sunshine days in January:
12.3 days - Average sunshine days in February:
10.6 days - Average sunshine days in March:
12.3 days - Average sunshine days in April:
13.8 days - Average sunshine days in May:
19.5 days - Average sunshine days in June:
15.5 days
- Average sunshine days in July:
18.8 days - Average sunshine days in August:
19.8 days - Average sunshine days in September:
19.5 days - Average sunshine days in October:
17 days - Average sunshine days in November:
13.3 days - Average sunshine days in December:
13.4 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
Hornsby, Australia
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
Hornsby, Australia
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
Hornsby, Australia
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).
