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December Weather in Invercargill, New Zealand

Last updated: August 31, 2025

In Invercargill, New Zealand, the average temperature in December hovers around 14°C (58°F), with a minimum of 7°C (44°F) and a comfortable maximum reaching 26°C (78°F). This month experiences approximately 106 mm (4.2 in) of precipitation over 17 days, contributing to an average humidity of 83%. It's a time for cozy layers and occasional rain showers!

December Temperature in Invercargill

In December in Invercargill, the average temperature is 14°C (58°F), with maximums reaching 26°C (78°F) and minimums dropping as low as 7°C (44°F). This pleasant climate makes Invercargill an ideal destination for travelers seeking mild weather and outdoor adventures.

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

The chart illustrates December temperature patterns in Invercargill, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Invercargill, December typically has an average temperature of 14°C (58°F), with highs reaching up to 26°C (78°F) and lows dropping to around 7°C (44°F).
JanFebMarAprMayJunJulAugSepOctNovDec595957545046454749525558
Data source: Temperature data for Invercargill 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 Invercargill

In Invercargill in December, the precipitation amount is 106 mm (4.2 in) spread over 17 days.

December Precipitation Trends in Invercargill

The chart displays monthly precipitation patterns in Invercargill, 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 Invercargill, December typically receives around 106 mm (4.2 inches) of precipitation spread over approximately 17 days.
JanFebMarAprMayJunJulAugSepOctNovDec10112285109103859497127117121106
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Invercargill

In Invercargill in December, humidity is 83%. With an average temperature of 14°C (58°F), this humidity feels like a thick blanket enveloping you, making exploration feel heavier and sweatier, so be prepared for a slower pace while traveling.

December Average Humidity in Invercargill

This chart illustrates the average monthly humidity levels in Invercargill, 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 Invercargill is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec83%82%84%84%85%85%85%84%83%82%83%83%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Invercargill

In Invercargill 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 Invercargill.

Maximum UV Index Levels in Invercargill for December

The chart shows the monthly maximum UV Index (UVI) for Invercargill 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 Invercargill typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec121185322358912
Data source: Invercargill 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 Invercargill Compares to Other Months

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

This table compares monthly weather conditions in Invercargill, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather15°C (60°F)101 mm (4.0 inches)83%extreme
February Weather15°C (59°F)122 mm (4.8 inches)82%extreme
March Weather14°C (58°F)85 mm (3.4 inches)84%very high
April Weather12°C (54°F)109 mm (4.3 inches)84%moderate
May Weather10°C (50°F)103 mm (4.0 inches)85%moderate
June Weather8°C (46°F)85 mm (3.3 inches)85%low
July Weather7°C (46°F)94 mm (3.7 inches)85%low
August Weather8°C (47°F)97 mm (3.8 inches)84%moderate
September Weather9°C (49°F)127 mm (5.0 inches)83%moderate
October Weather11°C (52°F)117 mm (4.6 inches)82%very high
November Weather13°C (55°F)121 mm (4.8 inches)82%very high
December Weather14°C (58°F)106 mm (4.2 inches)83%extreme

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