December Weather in Auckland, New Zealand

Last updated: August 31, 2025

In Auckland, New Zealand, December heralds the arrival of summer with an average temperature of 19°C (67°F), peaking at a pleasant 25°C (77°F) during the day. While visitors can enjoy warm sunny outings, they should also brace for occasional rain, as the month experiences approximately 72 mm (2.8 in) of precipitation over about 12 days. With humidity hovering around 78%, the air can feel quite muggy, making it essential to stay hydrated and seek shade during the hotter hours. Overall, December in Auckland offers a vibrant mix of warmth and refreshing rainfall, perfect for exploring this beautiful region.

December Temperature in Auckland

December in Auckland, New Zealand marks the official start of summer, bringing a delightful warmth to the city. With temperatures typically ranging from a mild 12°C (54°F) at night to a pleasant 25°C (77°F) during the day, the weather perfectly complements outdoor activities and beach outings. The average temperature hovers around 19°C (67°F), setting a comfortable tone for both locals and visitors. As the year draws to a close, December's climate reflects a clear upward trend in warmth, transitioning from the cooler, crisper days of spring. This inviting atmosphere makes it an ideal time for festivals and gatherings, highlighting Auckland's vibrant outdoor lifestyle.

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

The chart illustrates December temperature patterns in Auckland, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Auckland, December typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec686967645956545556596367
Data source: Temperature data for Auckland 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 Auckland

In December, Auckland experiences a relatively moderate rainfall, with 72 mm (2.8 in) of precipitation spread over 12 days. This marks a slight decrease from the wetter months of spring, reflecting a trend of fluctuating rainfall as the year comes to an end. While the precipitation levels are lower than in the peak winter months like June and August, December still maintains a comfortable moisture balance, contributing to the lush greenery characteristic of New Zealand. As summer approaches, the distribution of rain tends to vary, hinting at a transition to drier conditions ahead.

December Precipitation Trends in Auckland

The chart displays monthly precipitation patterns in Auckland, 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 Auckland, December typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec56788810084107102114111818072
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Auckland

In December, Auckland, New Zealand experiences a humidity level of 78%, marking a slight decline from the preceding months. This figure places December among the more humid months of the year, following the peak levels seen in the cooler winter months of June and July, which average around 82% and 83% respectively. Interestingly, while the humidity in December is lower than the winter highs, it remains relatively consistent with the late spring and early summer months, where humidity levels hover around 76% to 80%. As the city transitions into the warm summer months, residents can expect a tropical feel, underscored by a unique blend of atmospheric moisture that characterizes Auckland's vibrant coastal climate.

December Average Humidity in Auckland

This chart illustrates the average monthly humidity levels in Auckland, 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 Auckland is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec79%76%74%75%80%82%83%81%80%80%80%78%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Auckland

In December, Auckland experiences a UV Index of 13, categorizing the exposure as extreme with a burn time of just 10 minutes. This trend of high UV levels continues from the previous month, where November also recorded an extreme index of 11. Throughout the summer months of January and February, Auckland maintains this intensity with a UV Index peaking at 14, emphasizing the crucial need for sun protection during these peak summer weeks. With a steady decline in UV levels through the cooler months, from November’s extreme rating to April’s high of 7, it becomes evident that Auckland's UV exposure is at its highest at the start of summer—making vigilance against sunburn essential. For more details, you can visit Auckland UV Index.

Maximum UV Index Levels in Auckland for December

The chart shows the monthly maximum UV Index (UVI) for Auckland 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 Auckland typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141410743357101113
Data source: Auckland 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.

December Sunshine in Auckland

December in Auckland, New Zealand, shines with an impressive 346 hours of sunshine, marking the peak of the year for sun-seekers. This vibrant month contrasts sharply with the colder winter months, such as June, which only offers 187 hours of sunlight. The trend is clear: as the year progresses into summer, sunshine hours steadily increase. November also boasts a high total at 306 hours, setting the stage for December’s sun-drenched days. This abundant sunshine not only enhances outdoor activities but also cultivates a lively atmosphere throughout the city, making it a prime time for both locals and visitors to soak in the warmth and festive spirit of the season.

Monthly Sunshine Duration in Auckland: December Highlighted

The December sunshine duration represents the total number of hours Auckland experiences direct sunlight during the month of December, excluding cloudy or obstructed periods. This chart compares the sunshine duration of December with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec284h282h287h235h216h187h214h234h259h284h306h346h
Data source: Auckland December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Auckland During December

In Auckland, New Zealand, the likelihood of sunny weather in December reflects a noticeable downward trend, with only a 25% chance of sunshine—significantly lower than the peak of 48% in January. This decrease marks the transition from the warmer months, where sunny days are more common, to the onset of summer's unpredictability. As we move through the year, the chances of sun gradually diminish from the highs of late spring, with November sitting at 36%, to a less encouraging December. Overall, while December may not offer the sunniest of days, the warmth of summer is just around the corner, promising brighter skies in the months ahead.

Percentage of Sunny Days in December in Auckland

The chart illustrates the percentage of sunny days in Auckland throughout the year, with December highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Auckland experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec48%42%42%39%40%39%43%41%38%28%36%25%
Data source: Auckland December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Auckland in December

In Auckland, New Zealand, December shines with 14 hours of daylight, mirroring the bright month of January. As the year progresses towards the colder months, a gradual decrease in daylight occurs, with hours dropping to 12 in March and further to 9 hours in both June and July. However, as spring unfolds, daylight begins to extend again, reaching 10 hours in August and climbing back to 14 hours by November. This cyclical pattern highlights a vibrant summer that not only welcomes abundant daylight in December but also signals the rejuvenation of longer days in the warmer months ahead.

Average Daylight Hours in Auckland for December

The chart illustrates the variation in daylight duration in Auckland throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec14h 21m13h 26m12h 17m11h 6m10h 8m9h 39m9h 53m10h 44m11h 51m13h 1m14h 4m14h 37m
Data source: Auckland daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Auckland

As December sweeps in, Auckland experiences a refreshing shift in wind patterns, with an average wind speed of 5.1 m/s (about 11 mph), marking a notable increase compared to the preceding month. This seasonal change sets the stage for a breezier summer, aligning with the upward trend observed from the cooler months, where wind speeds gradually climbed from the chilly lows of 3.8 m/s in November. The consistent rise from earlier months emphasizes the city's dynamic weather, moving from the gentler breezes of spring into a livelier coastal atmosphere. The energetic December winds not only enhance the city's vibrant outdoor lifestyle but also serve as a reminder that summer is just around the corner, inviting residents and visitors alike to embrace the warmth and activity that comes with it.

Average December Wind Speed in Auckland

The chart displays monthly wind speed patterns in Auckland, with values for each month shown alongside December's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how December's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec4.44.34.14.44.74.85.25.65.65.53.85.1 m/s
Data source: Auckland December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Auckland Compares to Other Months

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

When comparing the weather in December and January, January typically offers slightly warmer temperatures, with average highs reaching 26°C (79°F) compared to December's 25°C (77°F). Both months exhibit mild temperatures, with December having a minimum of 12°C (54°F) and January a tad warmer at 13°C (56°F). January sees a reduction in precipitation, totaling 56 mm (2.2 in) over just 7 days, while December experiences more rainfall at 72 mm (2.8 in) across 12 days. The humidity remains fairly consistent, with December at 78% and January slightly higher at 79%. For more detailed insights, you can check Auckland weather in January.

In December, the weather is relatively mild with minimum temperatures around 12°C (54°F) and an average of 19°C (67°F), peaking at a maximum of 25°C (77°F). The month sees about 72 mm (2.8 in) of precipitation over 12 days, contributing to a humidity level of 78%. In contrast, February experiences slightly warmer conditions, with minimums of 14°C (57°F), an average of 21°C (70°F), and a maximum of 27°C (80°F). Although February has a slightly higher precipitation total of 78 mm (3.1 in) spread over 9 days, the humidity remains relatively stable at 76%. For more detailed information, check out Auckland weather in February.

In December, temperatures range from a mild 12°C (54°F) at night to a warm 25°C (77°F) during the day, with an average of 19°C (67°F). The month experiences about 72 mm (2.8 in) of precipitation over 12 days, accompanied by relatively high humidity at 78%. In contrast, March presents slightly warmer nights with a minimum of 13°C (56°F) and a similar daytime maximum of 25°C (77°F), averaging at 20°C (68°F). However, it is slightly wetter, receiving around 87 mm (3.4 in) of rain over 13 days, with humidity sitting a bit lower at 74%. For more detailed weather information, you can check Auckland weather in March.

In December, the weather boasts slightly warmer temperatures with a minimum of 12°C (54°F) and an average high of 25°C (77°F), accompanied by a moderate level of humidity at 78%. The month experiences around 72 mm (2.8 in) of precipitation over 12 days. In contrast, April sees cooler temperatures, with a minimum of 11°C (51°F) and an average high of 24°C (75°F). Rainfall increases slightly to 100 mm (3.9 in) over 11 days, and humidity is a tad lower at 74%. For more details on April weather specifics, visit Auckland weather in April.

December and May present contrasting weather patterns. In December, temperatures range from a comfortable minimum of 12°C (54°F) to a warm maximum of 25°C (77°F), with an average of 19°C (67°F), making it ideal for outdoor activities. Despite having slightly lower precipitation at 72 mm (2.8 in) over 12 days, humidity remains relatively high at 78%. In contrast, May experiences cooler conditions, with temperatures ranging from 7°C (45°F) to a maximum of 21°C (70°F) and an average of 15°C (60°F). Although it receives slightly more rainfall at 84 mm (3.3 in) over 11 days, the humidity is comparable at 80%. For more details on the weather in May, you can visit Auckland weather in May.

When comparing the weather in December and June, we find notable differences in temperature and precipitation. December boasts a warmer climate with temperatures ranging from a minimum of 12°C (54°F) to a maximum of 25°C (77°F), while June experiences cooler temperatures, with a minimum of 7°C (45°F) and a maximum of 19°C (67°F). December also registers lower precipitation levels at 72 mm (2.8 in) over approximately 12 days, compared to June's higher rainfall of 107 mm (4.2 in) during the same number of days. Humidity levels are quite similar, with December at 78% and June slightly higher at 82%. For a detailed look at the June climate, visit Auckland weather in June.

In December, the weather is notably warmer than in July, with temperatures ranging from a minimum of 12°C (54°F) to a maximum of 25°C (77°F) and an average of 19°C (67°F). In contrast, July experiences cooler temperatures with a minimum of 5°C (41°F) and a maximum of 18°C (64°F), averaging just 12°C (55°F). Additionally, December receives about 72 mm (2.8 in) of precipitation over 12 days, while July sees slightly higher precipitation at 102 mm (4.0 in) over 13 days. Humidity levels are somewhat comparable, with December at 78% and July at 83%. For more detailed weather insights, check out Auckland weather in July.

When comparing the weather in December and August, December enjoys considerably warmer temperatures, with an average of 19°C (67°F) and a maximum reaching 25°C (77°F), while August has a cooler average of 13°C (55°F) and peaks at 18°C (65°F). Additionally, December experiences less precipitation, totaling 72 mm (2.8 in) over 12 days, compared to August's 114 mm (4.5 in) spread over 15 days. Humidity levels are quite similar, with December at 78% and August at 80%. For a more detailed overview of the weather in August, you can visit Auckland weather in August.

When comparing the weather in December and September, December tends to be warmer and more pleasant. With average temperatures ranging from 12°C (54°F) to a high of 25°C (77°F), it is significantly warmer than September, where temperatures range from a cooler 6°C (43°F) to a maximum of 20°C (68°F). Additionally, December experiences less precipitation, with 72 mm (2.8 in) over 12 days, compared to September’s 111 mm (4.4 in) over 14 days. Humidity levels are slightly lower in December at 78%, while September maintains a humidity of 80%. For more detailed information, you can check out Auckland weather in September.

When comparing the weather of December and October, it's clear that December tends to be warmer and slightly wetter. In December, temperatures range from a minimum of 12°C (54°F) to a maximum of 25°C (77°F), with an average of 19°C (67°F). Contrastingly, October sees cooler temperatures, with a minimum of 8°C (47°F) and a maximum of 21°C (71°F), averaging only 15°C (59°F). While both months experience significant rainfall—72 mm (2.8 in) in December and 81 mm (3.2 in) in October—October has a couple more rainy days, totaling 14 compared to December's 12 days. Humidity is quite similar, with December at 78% and October slightly higher at 80%. For more detailed insights on October weather, you can check Auckland weather in October.

December generally experiences slightly warmer temperatures compared to November, with average highs reaching 25°C (77°F) compared to November's 23°C (73°F). Additionally, the minimum temperature remains marginally higher in December at 12°C (54°F) against November's 11°C (53°F). However, December tends to see a bit less precipitation, with 72 mm (2.8 in) of rain over 12 days, compared to November's 80 mm (3.2 in) under the same number of rainy days. Humidity levels are also slightly lower in December at 78%, compared to November's 80%. For more details, you can check Auckland weather in November.

Compare Auckland's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Auckland

As the festive season approaches, December in Auckland offers a delightful contrast to the cooler months, showcasing warmer temperatures that average around 19°C, with highs reaching up to 25°C. The city's charm is accentuated by its lush greenery, thanks to a moderate level of precipitation, which refreshes the landscape, even though rain graces about 12 days of the month. Coupled with high humidity, the warmth creates a vibrant, tropical feel that sets December apart from other times of the year. To explore more about the city's climate, visit Auckland Climate.