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December Weather in Kaiapoi, New Zealand

Last updated: August 31, 2025

In Kaiapoi, New Zealand, the average temperature for December hovers around 16°C (61°F). Expect a range that dips to a minimum of 9°C (48°F) and rises to a pleasant 26°C (78°F). Be prepared for some rain, as 81 mm (3.2 in) of precipitation is expected over 11 days, accompanied by a notable average humidity of 75%.

December Temperature in Kaiapoi

In December in Kaiapoi, the average temperature is 16°C (61°F). The maximum can reach 26°C (78°F) and the minimum can be as low as 9°C (48°F). This mild climate makes it an ideal time for travelers to explore and enjoy outdoor activities.

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

The chart illustrates December temperature patterns in Kaiapoi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kaiapoi, December typically has an average temperature of 16°C (61°F), with highs reaching up to 26°C (78°F) and lows dropping to around 9°C (48°F).
JanFebMarAprMayJunJulAugSepOctNovDec636360565248464850535760
Data source: Temperature data for Kaiapoi 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 Kaiapoi

In Kaiapoi in December, the precipitation amount is 81 mm (3.2 in) over a span of 11 days.

December Precipitation Trends in Kaiapoi

The chart displays monthly precipitation patterns in Kaiapoi, 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 Kaiapoi, December typically receives around 81 mm (3.2 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec474055705266664746566881
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Kaiapoi

In Kaiapoi in December humidity is 75%. With an average temperature of 16°C (61°F), this humidity feels like a warm, muggy embrace, making traveling somewhat uncomfortable as you may find yourself constantly adjusting your clothing and seeking shade to escape the sticky air.

December Average Humidity in Kaiapoi

This chart illustrates the average monthly humidity levels in Kaiapoi, 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 Kaiapoi is approximately 75%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec72%72%77%77%82%84%85%83%82%79%77%75%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Kaiapoi

In Kaiapoi 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 Kaiapoi.

Maximum UV Index Levels in Kaiapoi for December

The chart shows the monthly maximum UV Index (UVI) for Kaiapoi 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 Kaiapoi typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec1312963223591012
Data source: Kaiapoi 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 Kaiapoi Compares to Other Months

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

This table compares monthly weather conditions in Kaiapoi, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather17°C (63°F)47 mm (1.8 inches)72%extreme
February Weather17°C (63°F)40 mm (1.6 inches)72%extreme
March Weather16°C (60°F)55 mm (2.2 inches)77%very high
April Weather13°C (56°F)70 mm (2.8 inches)77%high
May Weather11°C (52°F)52 mm (2.1 inches)82%moderate
June Weather9°C (48°F)66 mm (2.6 inches)84%low
July Weather8°C (47°F)66 mm (2.6 inches)85%low
August Weather9°C (48°F)46 mm (1.8 inches)82%moderate
September Weather10°C (50°F)46 mm (1.8 inches)82%moderate
October Weather12°C (53°F)56 mm (2.2 inches)79%very high
November Weather14°C (57°F)68 mm (2.7 inches)77%very high
December Weather16°C (61°F)81 mm (3.2 inches)75%extreme

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