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December Weather in Exeter, Australia

Last updated: August 22, 2025

In Exeter, Australia, the average temperature in December hovers around 19°C (66°F). However, temperatures can vary widely, with a minimum of 7°C (45°F) and a scorching maximum of 39°C (102°F). Expect 83 mm (3.3 in) of precipitation over approximately 13 days, accompanied by an average humidity of 71%. Stay prepared for the diverse weather conditions!

December Temperature in Exeter

In December in Exeter, the average temperature is 19°C (66°F), with maximums reaching up to 39°C (102°F) and minimums dipping as low as 7°C (45°F). This range makes Exeter a versatile destination for travelers, providing opportunities for both warm-weather activities and cooler escapes.

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

The chart illustrates December temperature patterns in Exeter, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Exeter, December typically has an average temperature of 19°C (66°F), with highs reaching up to 39°C (102°F) and lows dropping to around 7°C (45°F).
JanFebMarAprMayJunJulAugSepOctNovDec706663585146464752576166
Data source: Temperature data for Exeter 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 Exeter

In Exeter in December, the precipitation amount is 83 mm (3.3 in) over a span of 13 days.

December Precipitation Trends in Exeter

The chart displays monthly precipitation patterns in Exeter, 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 Exeter, December typically receives around 83 mm (3.3 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec49112129274529305338728883
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Exeter

In Exeter in December humidity is 71%. With an average temperature of 19°C (66°F), this humidity feels like a warm, balmy embrace that enhances the tropical atmosphere, making it a perfect backdrop for leisurely strolls and outdoor adventures, though it may also lead to a slightly sticky feeling as you explore.

December Average Humidity in Exeter

This chart illustrates the average monthly humidity levels in Exeter, 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 Exeter is approximately 71%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec70%75%73%73%72%70%69%68%64%61%64%71%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Exeter

In Exeter 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 Exeter.

Maximum UV Index Levels in Exeter for December

The chart shows the monthly maximum UV Index (UVI) for Exeter 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 Exeter typically reaches 15, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151412853468101215
Data source: Exeter 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 Exeter Compares to Other Months

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

This table compares monthly weather conditions in Exeter, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather21°C (70°F)49 mm (1.9 inches)70%extreme
February Weather19°C (67°F)112 mm (4.4 inches)74%extreme
March Weather17°C (63°F)129 mm (5.1 inches)73%extreme
April Weather14°C (58°F)27 mm (1.0 inches)73%very high
May Weather11°C (51°F)45 mm (1.8 inches)72%moderate
June Weather8°C (47°F)29 mm (1.2 inches)70%moderate
July Weather8°C (46°F)30 mm (1.2 inches)69%moderate
August Weather8°C (47°F)53 mm (2.1 inches)68%high
September Weather11°C (53°F)38 mm (1.5 inches)64%very high
October Weather14°C (58°F)72 mm (2.8 inches)61%very high
November Weather16°C (61°F)88 mm (3.5 inches)64%extreme
December Weather19°C (66°F)83 mm (3.3 inches)71%extreme

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