Hornsby Weather in January

January in Hornsby averages 28°C (82°F) during the day and 19°C (66°F) at night. Quite a bit of rainfall is typical this month, with around 76 mm (3 in) on average. An umbrella is a good idea.

Rainfall in Hornsby in January

Climate statistics over the past 30 years suggest around 12 days of rain, with 76 mm (3 in) average for the month. A fairly balanced picture this month, some wet days but nothing too extreme in terms of intensity.

Temperature in Hornsby in January

January tends to be one of the perfect months in Hornsby, with 28°C (82°F) in the afternoon and 19°C (66°F) overnight. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. Nights cool down to 19°C (66°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions. On average, this month sees the highest temperatures of the year. Worth packing a few lighter outfits.

Sunshine in Hornsby in January

The city usually sees around 233 hours of sunlight, indicating many sunny days — a great month for sightseeing.

So this is a great month to visit if you prefer dry days with pleasant temperatures.

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Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Australia, check out our Hornsby's climate page.

Hornsby Temperature in January

Min Temperature 19°C (66°F)  

Max Temperature 28°C (82°F)  

Chance of Rain 40%  

Precipitation 76 mm (3 in)  

Rainy days 12 days  

Humidity 61% *  

Sunshine 233 hours *  

Percentage Sunshine 53% *  

* Data from: Sydney, Australia (28 KM, 17 Miles).

What to Wear in Hornsby in January

Warm weather calls for comfortable, breathable clothing in January. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Rain is likely on several days, so bring a good rain jacket. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Hornsby in January

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

9/10

Cycling

7/10

Walking

7/10

Camping

8/10

Outdoor sports

7/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Australia, check out our Hornsby's climate page.

More climate data for Hornsby

Temperature Rainfall Sunshine Humidity

See the full Hornsby climate overview or explore weather in Australia.