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December Weather in Castlepoint, New Zealand

Last updated: August 31, 2025

In December, the average temperature in Castlepoint, New Zealand hovers around 16°C (62°F). Expect a comfortable range, with minimums dipping to 10°C (51°F) and maximums peaking at 23°C (73°F). However, be prepared for some rain, as 113 mm (4.5 in) of precipitation might fall over 11 days. The air tends to be quite humid, with an average of 75%, making it feel a bit warmer.

December Temperature in Castlepoint

In December in Castlepoint, the average temperature is 16°C (62°F). Maximums can reach 23°C (73°F), while minimums can drop to as low as 10°C (51°F). This mild weather makes it an ideal time for outdoor activities and exploring the beauty of Castlepoint.

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

The chart illustrates December temperature patterns in Castlepoint, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Castlepoint, December typically has an average temperature of 16°C (62°F), with highs reaching up to 23°C (73°F) and lows dropping to around 10°C (51°F).
JanFebMarAprMayJunJulAugSepOctNovDec646462595654525253555861
Data source: Temperature data for Castlepoint 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 Castlepoint

In Castlepoint in December, the total precipitation amount is 113 mm (4.5 in), spread over a period of 11 days.

December Precipitation Trends in Castlepoint

The chart displays monthly precipitation patterns in Castlepoint, 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 Castlepoint, December typically receives around 113 mm (4.5 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec425792101651038269917181113
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Castlepoint

In Castlepoint in December, humidity is 75%. With an average temperature of 16°C (62°F), this humidity feels like a heavy blanket wrapping around you, making traveling feel a bit stifling and sticky, as the air clings to your skin and can sap your energy.

December Average Humidity in Castlepoint

This chart illustrates the average monthly humidity levels in Castlepoint, 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 Castlepoint 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 Castlepoint

In Castlepoint 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 Castlepoint.

Maximum UV Index Levels in Castlepoint for December

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

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

This table compares monthly weather conditions in Castlepoint, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather18°C (64°F)42 mm (1.7 inches)75%extreme
February Weather18°C (65°F)57 mm (2.2 inches)76%extreme
March Weather17°C (63°F)92 mm (3.6 inches)75%very high
April Weather15°C (59°F)101 mm (4.0 inches)77%high
May Weather14°C (57°F)65 mm (2.6 inches)82%moderate
June Weather12°C (54°F)103 mm (4.0 inches)83%low
July Weather11°C (52°F)82 mm (3.2 inches)83%low
August Weather11°C (52°F)69 mm (2.7 inches)81%moderate
September Weather11°C (53°F)90 mm (3.6 inches)80%high
October Weather13°C (55°F)71 mm (2.8 inches)79%very high
November Weather14°C (58°F)81 mm (3.2 inches)78%extreme
December Weather16°C (62°F)113 mm (4.5 inches)75%extreme

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