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December Weather in Mornington, New Zealand

Last updated: August 31, 2025

In Mornington, New Zealand, the average temperature in December hovers around 14°C (57°F), with minimums dipping to 7°C (46°F) and maximums reaching 23°C (74°F). Expect 92 mm (3.6 in) of precipitation spread over 16 days, all while enjoying a comfortable average humidity of 83%.

December Temperature in Mornington

In December, in Mornington, the average temperature is 14°C (57°F). Maximum temperatures can reach 23°C (74°F), while minimums can drop as low as 7°C (46°F). This mild climate makes Mornington an ideal destination for travelers looking to enjoy comfortable outdoor activities.

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

The chart illustrates December temperature patterns in Mornington, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mornington, December typically has an average temperature of 14°C (57°F), with highs reaching up to 23°C (74°F) and lows dropping to around 7°C (46°F).
JanFebMarAprMayJunJulAugSepOctNovDec585857545046454748505457
Data source: Temperature data for Mornington 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 Mornington

In Mornington in December, the total precipitation amount reaches 92 mm (3.6 in) spread over 16 days.

December Precipitation Trends in Mornington

The chart displays monthly precipitation patterns in Mornington, 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 Mornington, December typically receives around 92 mm (3.6 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec9810359786057755264839292
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Mornington

In Mornington in December, humidity is 83%. With an average temperature of 14°C (57°F), this humidity feels like you're stepping into a warm, damp embrace that can make outdoor activities quite uncomfortable, often leaving you sweaty and exhausted if you're not prepared with plenty of water and breathable clothing.

December Average Humidity in Mornington

This chart illustrates the average monthly humidity levels in Mornington, 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 Mornington is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%79%81%81%82%83%84%82%83%80%81%83%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Mornington

In Mornington in December, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Mornington.

Maximum UV Index Levels in Mornington for December

The chart shows the monthly maximum UV Index (UVI) for Mornington 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 Mornington typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec131185322358912
Data source: Mornington 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 Mornington Compares to Other Months

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

This table compares monthly weather conditions in Mornington, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather14°C (58°F)98 mm (3.9 inches)82%extreme
February Weather14°C (58°F)103 mm (4.0 inches)79%extreme
March Weather14°C (57°F)59 mm (2.3 inches)81%very high
April Weather12°C (54°F)78 mm (3.1 inches)81%moderate
May Weather10°C (50°F)60 mm (2.4 inches)82%moderate
June Weather8°C (46°F)57 mm (2.3 inches)83%low
July Weather7°C (46°F)75 mm (2.9 inches)84%low
August Weather8°C (47°F)52 mm (2.0 inches)82%moderate
September Weather9°C (49°F)64 mm (2.5 inches)83%moderate
October Weather10°C (51°F)83 mm (3.3 inches)80%very high
November Weather12°C (54°F)92 mm (3.6 inches)81%very high
December Weather14°C (57°F)92 mm (3.6 inches)83%extreme

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