nomadseason

December Weather in Wairau Valley, New Zealand

Last updated: August 31, 2025

In December, the average temperature in Wairau Valley, New Zealand hovers around 14°C (58°F). The range can vary from a chilly 1°C (34°F) to a warm 27°C (80°F). Expect about 183 mm (7.2 in) of rainfall spread over 16 days, contributing to the area's high average humidity of 81%.

December Temperature in Wairau Valley

In December in Wairau Valley, the average temperature is 14°C (58°F). Maximums can reach 27°C (80°F) and minimums can be as low as 1°C (34°F). Be prepared for a wide range of temperatures and pack accordingly for your trip.

December Weather in Wairau Valley: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Wairau Valley, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Wairau Valley, December typically has an average temperature of 14°C (58°F), with highs reaching up to 27°C (80°F) and lows dropping to around 1°C (34°F).
JanFebMarAprMayJunJulAugSepOctNovDec615956514642404345505458
Data source: Temperature data for Wairau Valley generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Wairau Valley

In Wairau Valley in December, the precipitation amount is 183 mm (7.2 in) over a period of 16 days.

December Precipitation Trends in Wairau Valley

The chart displays monthly precipitation patterns in Wairau Valley, 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 Wairau Valley, December typically receives around 183 mm (7.2 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec829511213813975176127136127132183
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Wairau Valley

In Wairau Valley in December, humidity is 81%. With an average temperature of 14°C (58°F), this humidity feels like a warm blanket wrapping around you, making outdoor adventures sticky and challenging, while also providing a lush, vibrant atmosphere perfect for exploring.

December Average Humidity in Wairau Valley

This chart illustrates the average monthly humidity levels in Wairau Valley, 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 Wairau Valley is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec79%79%79%80%84%86%86%83%83%82%82%81%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Wairau Valley

In Wairau Valley 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 Wairau Valley.

Maximum UV Index Levels in Wairau Valley for December

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

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

This table compares monthly weather conditions in Wairau Valley, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather16°C (61°F)82 mm (3.2 inches)79%extreme
February Weather15°C (60°F)95 mm (3.7 inches)79%extreme
March Weather13°C (57°F)112 mm (4.4 inches)79%very high
April Weather10°C (51°F)138 mm (5.4 inches)80%high
May Weather8°C (46°F)139 mm (5.5 inches)84%moderate
June Weather5°C (42°F)75 mm (3.0 inches)86%low
July Weather5°C (41°F)176 mm (6.9 inches)86%low
August Weather6°C (43°F)127 mm (5.0 inches)83%moderate
September Weather7°C (45°F)136 mm (5.3 inches)83%high
October Weather10°C (50°F)127 mm (5.0 inches)82%very high
November Weather12°C (54°F)132 mm (5.2 inches)82%extreme
December Weather14°C (58°F)183 mm (7.2 inches)81%extreme

Compare Wairau Valley's Climate with Cities Worldwide