January Weather in Grenfell, Australia

Last updated: August 22, 2025

In Grenfell, Australia, the average temperature in January hovers around 25°C (78°F). While you might enjoy warm days, be prepared for some fluctuations: temperatures can dip as low as 9°C (49°F) and soar up to 43°C (111°F). Expect a bit of rain, with an average precipitation of 38 mm (1.5 in) spread over about 5 days. With an average humidity of 58%, it's a month where comfort and warmth coalesce beautifully.

January Temperature in Grenfell

In January in Grenfell, the average temperature is 25°C (78°F). The maximum can reach 43°C (111°F), while the minimum can be as low as 9°C (49°F). Travelers should be prepared for a wide range of temperatures and pack accordingly for both warm days and cooler nights.

January Weather in Grenfell: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Grenfell, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Grenfell, January typically has an average temperature of 25°C (78°F), with highs reaching up to 43°C (111°F) and lows dropping to around 9°C (49°F).

Data source: Temperature data for Grenfell generated using information from the Copernicus Climate Change Service.

January Precipitation in Grenfell

In Grenfell in January, the total precipitation amount is 38 mm (1.5 in) spread over a duration of 5 days.

January Precipitation Trends in Grenfell

The chart displays monthly precipitation patterns in Grenfell, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Grenfell, January typically receives around 38 mm (1.5 inches) of precipitation spread over approximately 5 days.

Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

January Humidity in Grenfell

In Grenfell in January humidity is 58%. With an average temperature of 25°C (78°F), this humidity feels like a warm embrace, making it pleasantly comfortable for traveling as long as you stay hydrated and take breaks to enjoy the shade.

January Average Humidity in Grenfell

This chart illustrates the average monthly humidity levels in Grenfell, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Grenfell is approximately 58%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Grenfell

In Grenfell in January, the maximum UV index reaches an alarming 15, which falls into the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take precautions. For detailed information, you can check the Hourly UV Index in Grenfell.

Maximum UV Index Levels in Grenfell for January

The chart shows the monthly maximum UV Index (UVI) for Grenfell in January, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In January, the maximum UV index in Grenfell typically reaches 15, which falls under the extreme exposure category.

Data source: Grenfell January UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How January Weather in Grenfell Compares to Other Months

Weather in Grenfell varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Grenfell, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Grenfell, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	25°C (78°F)	38 mm (1.5 inches)	58%	extreme
February Weather	23°C (74°F)	44 mm (1.7 inches)	65%	extreme
March Weather	21°C (69°F)	75 mm (2.9 inches)	68%	extreme
April Weather	16°C (61°F)	27 mm (1.1 inches)	74%	very high
May Weather	11°C (52°F)	42 mm (1.7 inches)	78%	moderate
June Weather	8°C (47°F)	53 mm (2.1 inches)	79%	moderate
July Weather	8°C (46°F)	43 mm (1.7 inches)	80%	moderate
August Weather	8°C (47°F)	51 mm (2.0 inches)	77%	high
September Weather	12°C (53°F)	39 mm (1.6 inches)	70%	very high
October Weather	16°C (61°F)	58 mm (2.3 inches)	58%	very high
November Weather	19°C (66°F)	79 mm (3.1 inches)	57%	extreme
December Weather	23°C (73°F)	57 mm (2.2 inches)	61%	extreme