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December Weather in Geraldine, New Zealand

Last updated: August 31, 2025

In Geraldine, New Zealand, the average temperature in December is a comfortable 15°C (59°F). You can expect a minimum of 4°C (39°F) and a pleasant maximum of 29°C (84°F). However, do prepare for some rain, as precipitation averages 136 mm (5.3 in) over 16 days of the month, with humidity levels hovering around a notable 81%.

December Temperature in Geraldine

In December in Geraldine, the average temperature is 15°C (59°F). Maximums can reach 29°C (84°F), while minimums can drop as low as 4°C (39°F). It's a great time to visit for those who enjoy mild weather with some warm days mixed in.

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

The chart illustrates December temperature patterns in Geraldine, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Geraldine, December typically has an average temperature of 15°C (59°F), with highs reaching up to 29°C (84°F) and lows dropping to around 4°C (39°F).
JanFebMarAprMayJunJulAugSepOctNovDec616057524641404347515559
Data source: Temperature data for Geraldine 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 Geraldine

In Geraldine in December, the precipitation amount is 136 mm (5.3 in) distributed over 16 days.

December Precipitation Trends in Geraldine

The chart displays monthly precipitation patterns in Geraldine, 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 Geraldine, December typically receives around 136 mm (5.3 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec77991009676651056571101126136
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Geraldine

In Geraldine in December humidity is 81%. With an average temperature of 15°C (59°F), this humidity feels like a heavy blanket draped over you, making traveling quite uncomfortable as you constantly wipe away beads of sweat and feel the stickiness clinging to your clothes.

December Average Humidity in Geraldine

This chart illustrates the average monthly humidity levels in Geraldine, 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 Geraldine is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec79%76%78%81%84%85%85%84%83%80%78%81%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Geraldine

In Geraldine 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 Geraldine.

Maximum UV Index Levels in Geraldine for December

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

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

This table compares monthly weather conditions in Geraldine, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather16°C (61°F)77 mm (3.0 inches)79%extreme
February Weather16°C (60°F)99 mm (3.9 inches)76%extreme
March Weather14°C (57°F)100 mm (3.9 inches)78%very high
April Weather11°C (52°F)96 mm (3.8 inches)81%high
May Weather8°C (47°F)76 mm (3.0 inches)84%moderate
June Weather5°C (41°F)65 mm (2.6 inches)85%low
July Weather5°C (41°F)105 mm (4.1 inches)85%low
August Weather6°C (43°F)65 mm (2.6 inches)84%moderate
September Weather8°C (47°F)71 mm (2.8 inches)83%moderate
October Weather10°C (51°F)101 mm (4.0 inches)80%very high
November Weather13°C (56°F)126 mm (5.0 inches)78%very high
December Weather15°C (59°F)136 mm (5.3 inches)81%extreme

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