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Hornsby Weather in September
During September, Hornsby experiences pleasant daytime temperatures of 22°C (72°F) and cooler nights around 11°C (52°F). Some rainfall is typical during this period.
Rainfall in Hornsby in September
The climate data from previous years indicates about 10 days of rain, averaging 49 mm (1.9 in) for the month. The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.
Temperature in Hornsby in September
September is a excellent month in Hornsby, with 22°C (72°F) during the day and 11°C (52°F) at night. Conditions are often most pleasant around the middle of the day. With overnight lows of 11°C (52°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.
Sunshine in Hornsby in September
Enjoy a sunny month with about 234 hours of sunshine, the clear skies make Hornsby even more beautiful.If you're inclined towards comfortable temperatures and drier conditions, September is a good time to visit Hornsby.
Hornsby Temperature in September
Min Temperature
11°C (52°F)
Max Temperature
22°C (72°F)
Chance of Rain
33%
Precipitation
49 mm (1.9 in)
Rainy days
10 days
Humidity
50% *
Sunshine
234 hours *
Percentage Sunshine
66% *
* Data from: Sydney, Australia (28 KM, 17 Miles).
Hornsby Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Hornsby - and find the best time to visit.
Best Places in Australia in September
Find out more about the weather in Australia and which places have the best travel conditions in this month. See all of Australia in September →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Hornsby in September
Pleasant temperatures in September mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Rain gear is recommended, you can expect wet weather on multiple days. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.
What To Do in Hornsby in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling10/10 -
Walking10/10 -
Barbeque9/10 -
Camping10/10 -
Outdoor sports10/10
Hornsby 3-Day Forecast
More climate data for Hornsby
Temperature Rainfall Sunshine Humidity
See the full Hornsby climate overview or explore weather in Australia.
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Where to go in September - average daytime high across popular destinations.
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