January Weather in Hornsby

Last updated: March 2, 2024

The weather in Hornsby, Australia, during January is characterized by an average temperature of 24°C (76°F). Highs can soar to 40°C (104°F), while lows may dip to 15°C (60°F). Typically, the humidity level in Hornsby throughout January hovers around 65%.

15°C (60°F)

Minimum temperature

24°C (76°F)

Average temperature

40°C (104°F)

Maximum temperature

65%

Humidity

Precipitation and Sunshine hours

In January, Hornsby averages 37 mm (1.5 inches) of rainfall, typically over the course of 9 rainy days. The month enjoys an average of 14 hours 5 minutes of daylight, with the sun shining for approximately 8 hours 16 minutes each day. Additionally, there is a 44% probability of sunny days during this period.

37 mm (1.5 inches)

Precipitation

9 rainy days

Rainy days

8 hours 16 minutes

Sunshine hours

44%

Chance of sun

UV Index

In January, the UV Index in Hornsby reaches a maximum of 14, indicating a level of Extreme exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, during which unprotected skin may burn in as little as 10 minutes.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00
UVI	1	2	5	8	11	14	14	13	11	7	4	2	1
Exposure	Low		Moderate	VeryHigh	Extreme					High	Moderate	Low
Time to burn	45 min		30 min	15 min	10 min					25 min	30 min	45 min