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December Weather in Sanson, New Zealand

Last updated: August 31, 2025

In December, the average temperature in Sanson, New Zealand hovers around 17°C (63°F), providing a pleasant atmosphere for visitors. Expect a minimum of 6°C (42°F) and a maximum of 25°C (78°F), making it a perfect time to enjoy the outdoors. However, be prepared for some rain, as precipitation averages 134 mm (5.3 in) over 14 days. With an average humidity of 75%, the air will feel a bit damp, so it's wise to pack accordingly!

December Temperature in Sanson

In December in Sanson, the average temperature is 17°C (63°F). Maximum temperatures can reach 25°C (78°F), while minimums can drop as low as 6°C (42°F). This mild climate makes Sanson an ideal destination for travelers seeking pleasant weather and outdoor activities.

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

The chart illustrates December temperature patterns in Sanson, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sanson, December typically has an average temperature of 17°C (63°F), with highs reaching up to 25°C (78°F) and lows dropping to around 6°C (42°F).
JanFebMarAprMayJunJulAugSepOctNovDec656563585451495052555963
Data source: Temperature data for Sanson 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 Sanson

In Sanson in December, the total precipitation amount is 134 mm (5.3 in) over the course of 14 days.

December Precipitation Trends in Sanson

The chart displays monthly precipitation patterns in Sanson, 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 Sanson, December typically receives around 134 mm (5.3 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec636682118788910010611410385134
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Sanson

In Sanson in December, humidity is 75%. With an average temperature of 17°C (63°F), this humidity feels like a warm embrace, making outdoor activities a bit sticky and requiring frequent breaks to stay refreshed during your travels.

December Average Humidity in Sanson

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

In Sanson 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 Sanson.

Maximum UV Index Levels in Sanson for December

The chart shows the monthly maximum UV Index (UVI) for Sanson 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 Sanson typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec1313974234691113
Data source: Sanson 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 Sanson Compares to Other Months

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

This table compares monthly weather conditions in Sanson, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather18°C (65°F)63 mm (2.5 inches)75%extreme
February Weather18°C (65°F)66 mm (2.6 inches)76%extreme
March Weather17°C (63°F)82 mm (3.2 inches)75%very high
April Weather14°C (58°F)118 mm (4.7 inches)77%high
May Weather12°C (54°F)78 mm (3.1 inches)82%moderate
June Weather10°C (51°F)89 mm (3.5 inches)83%low
July Weather10°C (50°F)100 mm (3.9 inches)83%moderate
August Weather10°C (50°F)106 mm (4.2 inches)81%moderate
September Weather11°C (52°F)114 mm (4.5 inches)80%high
October Weather13°C (55°F)103 mm (4.1 inches)79%very high
November Weather15°C (59°F)85 mm (3.3 inches)78%extreme
December Weather17°C (63°F)134 mm (5.3 inches)75%extreme

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