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December Weather in Smithtown, Australia

Last updated: August 22, 2025

In Smithtown, Australia, the weather in December is pleasantly warm, with an average temperature of 23°C (73°F). Expect minimums around 16°C (62°F) and maximums soaring up to 33°C (91°F). However, be prepared for occasional rain, as the area receives approximately 122 mm (4.8 in) of precipitation over about 13 days. Don't forget to stay hydrated; the average humidity hovers around a refreshing 78%!

December Temperature in Smithtown

In December in Smithtown, the average temperature is 23°C (73°F), with maximums reaching up to 33°C (91°F) and minimums dropping as low as 16°C (62°F). This pleasant weather makes it an ideal time for travelers to explore and enjoy outdoor activities.

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

The chart illustrates December temperature patterns in Smithtown, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Smithtown, December typically has an average temperature of 23°C (73°F), with highs reaching up to 33°C (91°F) and lows dropping to around 16°C (62°F).
JanFebMarAprMayJunJulAugSepOctNovDec767573686359575862667073
Data source: Temperature data for Smithtown 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 Smithtown

In Smithtown in December, the precipitation amount is 122 mm (4.8 in) recorded over a span of 13 days.

December Precipitation Trends in Smithtown

The chart displays monthly precipitation patterns in Smithtown, 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 Smithtown, December typically receives around 122 mm (4.8 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec621562478353825224349870122
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Smithtown

In Smithtown in December, humidity is 78%. With an average temperature of 23°C (73°F), this humidity feels like a warm, sticky embrace, making outdoor activities a little challenging but still enjoyable for travelers who appreciate a tropical atmosphere.

December Average Humidity in Smithtown

This chart illustrates the average monthly humidity levels in Smithtown, 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 Smithtown is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%78%78%77%74%72%70%70%68%68%73%78%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Smithtown

In Smithtown in December, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in Smithtown, you can check here.

Maximum UV Index Levels in Smithtown for December

The chart shows the monthly maximum UV Index (UVI) for Smithtown 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 Smithtown typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151513964478111314
Data source: Smithtown 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 Smithtown Compares to Other Months

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

This table compares monthly weather conditions in Smithtown, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather24°C (76°F)62 mm (2.4 inches)76%extreme
February Weather24°C (75°F)156 mm (6.1 inches)78%extreme
March Weather23°C (73°F)247 mm (9.7 inches)78%extreme
April Weather20°C (68°F)83 mm (3.3 inches)77%very high
May Weather17°C (63°F)53 mm (2.1 inches)74%high
June Weather15°C (59°F)82 mm (3.2 inches)71%moderate
July Weather14°C (57°F)52 mm (2.0 inches)70%moderate
August Weather14°C (58°F)24 mm (0.9 inches)70%high
September Weather17°C (62°F)34 mm (1.3 inches)68%very high
October Weather19°C (67°F)98 mm (3.9 inches)68%extreme
November Weather21°C (70°F)70 mm (2.7 inches)73%extreme
December Weather23°C (73°F)122 mm (4.8 inches)78%extreme

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