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December Weather in Gunnedah, Australia

Last updated: August 22, 2025

In December, the average temperature in Gunnedah, Australia hovers around 25°C (77°F), with fluctuations that can see lows of 9°C (49°F) and highs of 42°C (108°F). Expect about 64 mm (2.5 in) of precipitation over 8 days, paired with an average humidity of 72%. Whether you're planning outdoor adventures or seeking a cozy retreat, the weather offers a unique charm!

December Temperature in Gunnedah

In December in Gunnedah, the average temperature is 25°C (77°F). Maximum temperatures can reach a scorching 42°C (108°F), while it can dip to a chilly 9°C (49°F) at night. Travelers should be prepared for a wide range of temperatures, making both lightweight clothing and warmer layers essential.

December Weather in Gunnedah: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Gunnedah, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Gunnedah, December typically has an average temperature of 25°C (77°F), with highs reaching up to 42°C (108°F) and lows dropping to around 9°C (49°F).
JanFebMarAprMayJunJulAugSepOctNovDec817772645651505259667176
Data source: Temperature data for Gunnedah generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Gunnedah

In Gunnedah in December, the precipitation amount is 64 mm (2.5 in) over the course of 8 days.

December Precipitation Trends in Gunnedah

The chart displays monthly precipitation patterns in Gunnedah, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Gunnedah, December typically receives around 64 mm (2.5 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec3055102162431282421646964
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Gunnedah

In Gunnedah in December, humidity is 72%. With an average temperature of 25°C (77°F), this humidity feels like a warm embrace that clings to your skin, making outdoor exploration both vibrant and a bit taxing as you sweat slightly more and seek shade often while enjoying the scenery.

December Average Humidity in Gunnedah

This chart illustrates the average monthly humidity levels in Gunnedah, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Gunnedah is approximately 72%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec65%69%77%82%81%79%74%73%70%59%60%72%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Gunnedah

In Gunnedah in December, 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 Gunnedah.

Maximum UV Index Levels in Gunnedah for December

The chart shows the monthly maximum UV Index (UVI) for Gunnedah in December, 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 December, the maximum UV index in Gunnedah typically reaches 15, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec161513974479111415
Data source: Gunnedah December 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 December Weather in Gunnedah Compares to Other Months

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

This table compares monthly weather conditions in Gunnedah, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather27°C (81°F)30 mm (1.2 inches)65%extreme
February Weather25°C (77°F)55 mm (2.2 inches)69%extreme
March Weather22°C (72°F)102 mm (4.0 inches)77%extreme
April Weather18°C (64°F)16 mm (0.6 inches)82%very high
May Weather13°C (56°F)24 mm (0.9 inches)81%high
June Weather10°C (51°F)31 mm (1.2 inches)79%moderate
July Weather10°C (50°F)27 mm (1.1 inches)74%moderate
August Weather11°C (52°F)24 mm (0.9 inches)73%high
September Weather15°C (59°F)21 mm (0.8 inches)70%very high
October Weather19°C (66°F)64 mm (2.5 inches)59%extreme
November Weather21°C (71°F)69 mm (2.7 inches)60%extreme
December Weather25°C (77°F)64 mm (2.5 inches)72%extreme

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