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December Weather in Carterton, New Zealand

Last updated: August 31, 2025

In December, the average temperature in Carterton, New Zealand hovers around 15°C (60°F). Expect a range with minimums dipping to 3°C (38°F) and maximums soaring up to 25°C (78°F). With an average humidity of 75%, the climate can feel quite moist. Be prepared for 143 mm (5.6 in) of precipitation spread over 16 days, adding a refreshing touch to the atmosphere.

December Temperature in Carterton

In December in Carterton, the average temperature is 15°C (60°F). The maximum can reach 25°C (78°F), and the minimum can be as low as 3°C (38°F). This diverse range of temperatures makes it an ideal time for travelers to enjoy various outdoor activities while also being prepared for cooler evenings.

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

The chart illustrates December temperature patterns in Carterton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Carterton, December typically has an average temperature of 15°C (60°F), with highs reaching up to 25°C (78°F) and lows dropping to around 3°C (38°F).
JanFebMarAprMayJunJulAugSepOctNovDec626259545147454648525659
Data source: Temperature data for Carterton 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 Carterton

In Carterton in December, the precipitation amount is 143 mm (5.6 in) spread over 16 days.

December Precipitation Trends in Carterton

The chart displays monthly precipitation patterns in Carterton, 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 Carterton, December typically receives around 143 mm (5.6 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec62688411069101989011395110143
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Carterton

In Carterton in December, humidity is 75%. With an average temperature of 15°C (60°F), this humidity feels like a warm, heavy blanket wrapping around you, making outdoor activities slightly uncomfortable and requiring extra hydration while exploring the sights.

December Average Humidity in Carterton

This chart illustrates the average monthly humidity levels in Carterton, 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 Carterton is approximately 75%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec75%76%76%77%82%83%84%81%80%79%78%75%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Carterton

In Carterton in December, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in Carterton.

Maximum UV Index Levels in Carterton for December

The chart shows the monthly maximum UV Index (UVI) for Carterton 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 Carterton typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec1313974224691113
Data source: Carterton 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 Carterton Compares to Other Months

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

This table compares monthly weather conditions in Carterton, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather17°C (62°F)62 mm (2.4 inches)75%extreme
February Weather16°C (62°F)68 mm (2.7 inches)76%extreme
March Weather15°C (59°F)84 mm (3.3 inches)75%very high
April Weather12°C (55°F)110 mm (4.3 inches)77%high
May Weather10°C (51°F)69 mm (2.7 inches)82%moderate
June Weather8°C (47°F)101 mm (4.0 inches)83%low
July Weather7°C (46°F)98 mm (3.9 inches)83%low
August Weather8°C (47°F)90 mm (3.6 inches)81%moderate
September Weather9°C (49°F)113 mm (4.5 inches)80%high
October Weather11°C (52°F)95 mm (3.7 inches)79%very high
November Weather13°C (56°F)110 mm (4.3 inches)78%extreme
December Weather15°C (60°F)143 mm (5.6 inches)75%extreme

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