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Australia weather

Weather in Hornsby for January 2026

Your guide to Hornsby weather in January - trends and predictions

    Temperatures

  • Until now, January 2026 in Hornsby has been nearly identical to the historical average, with a temperature of 26.4 °C (showing only a slight deviation of -0.3 °C).

  • Expect cooler weather in the next days in Hornsby with the forecast suggesting a temperature of 27.8 °C, lower than the historical average.

  • In general, the average temperature in Hornsby at the beginning of January is 26.4 °C. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 29.3 °C by the end of January.

    • Rain 🌧️

  • Hornsby experiences heavy rainfall in January, with over 20 rainy days and an average total precipitation 105.8 mm.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
10
Dry days
Average rainy days
21
Rainy days
Average snowy days
0
Snow days
Average temperatures
26°/19°
Temperatures
Average wind speed
22 km/h
Avg max wind
Average humidity
72 %
Avg humidity

Hornsby Weather January

Move between months or click on a day
December
February
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Light rain shower
24°
2
Patchy rain possible
24°
3
Patchy rain possible
26°
4
Light rain shower
29°
5
Light rain shower
27°
6
Patchy rain possible
28°
7
Sunny
27°
8
Light rain shower
28°
9
Light drizzle
28°
10
Patchy rain possible
31°
11
Thundery outbreaks possible
25°
12
Patchy rain possible
25°
13
Cloudy
29°
14
Light rain shower
27°
15
Moderate or heavy rain shower
26°
16
Light rain shower
24°
17
Light rain shower
23°
18
Patchy rain possible
27°
19
Partly cloudy
24°
20
Patchy rain possible
25°
21
Sunny
29°
22
Patchy rain possible
27°
23
Patchy rain possible
23°
24
Sunny
28°
25
Patchy rain possible
31°
26
Patchy rain possible
29°
27
Patchy rain possible
28°
28
Sunny
30°
29
Sunny
28°
30
Sunny
30°
31
Patchy rain possible
29°

Temperatures trend during January in Hornsby

See the weather trend as well as the moving average line

January weather in Hornsby day by day

Click on a date for more information
December February
Date Weather Temperatures Rain UV More
1 Jan. Light rain shower
Light rain shower
 24° /17° 1.4 mm 7
2 Jan. Patchy rain possible
Patchy rain possible
 24° /18° 0.6 mm 10
3 Jan. Patchy rain possible
Patchy rain possible
 26° /18° 4.8 mm 8
4 Jan. Light rain shower
Light rain shower
 29° /17° 2.4 mm 10
5 Jan. Light rain shower
Light rain shower
 27° /18° 2.1 mm 11
6 Jan. Patchy rain possible
Patchy rain possible
 28° /18° 0.2 mm 11
7 Jan. Sunny
Sunny
 27° /18° 3.1 mm 10
8 Jan. Light rain shower
Light rain shower
 28° /19° 2.7 mm 10
9 Jan. Light drizzle
Light drizzle
 28° /19° 1.9 mm 10
10 Jan. Patchy rain possible
Patchy rain possible
 31° /19° 3.6 mm 10
11 Jan. Thundery outbreaks possible
Thundery outbreaks possible
 25° /19° 2.5 mm 7
12 Jan. Patchy rain possible
Patchy rain possible
 25° /19° 1.9 mm 7
13 Jan. Cloudy
Cloudy
 29° /18° 4.4 mm 10
14 Jan. Light rain shower
Light rain shower
 27° /19° 5.8 mm 9
15 Jan. Moderate or heavy rain shower
Moderate or heavy rain shower
 26° /19° 15.4 mm 7
16 Jan. Light rain shower
Light rain shower
 24° /18° 9 mm 7
17 Jan. Light rain shower
Light rain shower
 23° /19° 19.3 mm 6
18 Jan. Patchy rain possible
Patchy rain possible
 27° /19° 4.8 mm 9
19 Jan. Partly cloudy
Partly cloudy
 24° /16° 0.7 mm 8
20 Jan. Patchy rain possible
Patchy rain possible
 25° /17° 1 mm 8
21 Jan. Sunny
Sunny
 29° /16° 0.2 mm 11
22 Jan. Patchy rain possible
Patchy rain possible
 27° /18° 0.3 mm 9
23 Jan. Patchy rain possible
Patchy rain possible
 23° /18° 0.7 mm 10
24 Jan. Sunny
Sunny
 28° /16° 0.3 mm 11
25 Jan. Patchy rain possible
Patchy rain possible
 31° /21° 0.1 mm 11
26 Jan. Patchy rain possible
Patchy rain possible
 29° /20° 0.3 mm 10
27 Jan. Patchy rain possible
Patchy rain possible
 28° /20° 1.3 mm 9
28 Jan. Sunny
Sunny
 30° /16° 0 mm 3.4
29 Jan. Sunny
Sunny
 28° /19° 0.1 mm 3.1
30 Jan. Sunny
Sunny
 30° /19° 0 mm 3.5
31 Jan. Patchy rain possible
Patchy rain possible
 29° /20° 0.1 mm 8
Next
Important Notice
Our weather forecast for Hornsby in January is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Hornsby forecast closer to your planned date for the most up-to-date weather information.
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Hornsby in January - FAQ

What are the expected maximum and minimum temperatures in Hornsby during January?

During January, expect a variety of temperatures with highs around 26° and lows near 19°, suitable for diverse activities and preferences.

How much rainfall should be expected in Hornsby during January?

Significant rainfall exceeding 105.8 mm is expected in Hornsby during January, occurring over more than 21 days. Preparing for wet conditions is recommended in your planning.

What are the typical wind conditions in Hornsby during January?

The average wind speed in Hornsby during January is 22 km/h, suggesting breezy to windy conditions, depending on your activities.

January rainfall patterns in Hornsby

Explore the daily rainfall trends and prepare for Hornsbys January weather 💧
Typically, Hornsby has 21 rainy days in January with a total of 105.8 mm of rainfall.

UV exposure in Hornsby during January

Stay informed about UV levels for safe outdoor activities throughout the month of January ☀️

Quick links

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Location coordinates Where is Hornsby?

Get accurate weather forecasts for Hornsby, located at latitude -33.702 and longitude 151.099. Stay updated with localized weather information tailored for Hornsby.

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