Last updated: August 31, 2025
December in Porirua, New Zealand welcomes the summer season with an average temperature of 16°C (61°F), peaking at a pleasant 20°C (68°F). However, evenings can be cooler, dipping to a minimum of 10°C (51°F). This month sees 101 mm (4.0 in) of rainfall across approximately 11 days, contributing to the region's lush scenery. The humidity level hovers around a comfortable 81%, creating a refreshing atmosphere for both locals and visitors to enjoy the vibrant outdoor lifestyle that Porirua has to offer.
In December, Porirua, New Zealand, enjoys the onset of summer, with temperatures reflecting a pleasant warmth that invites outdoor activities. The month kicks off with a minimum temperature around 10°C (51°F), rising to a maximum of 20°C (68°F), offering a comfortable range that averages 16°C (61°F). This trend of gradually warming temperatures continues from the cooler months of spring, creating an inviting atmosphere perfect for exploring the scenic beauty of the region. As daylight stretches longer, December sets the stage for a lively summer vibe, making it an ideal time to soak up all that Porirua has to offer.
December in Porirua, New Zealand, sees a notable pattern in precipitation, rounding out the year with 101 mm (4.0 in) of rainfall over approximately 11 days. This amount aligns closely with the wetter months of June and July, signaling a continuation of the region's summer rain. As the festive season approaches, December maintains a steady precipitation level, reflecting a trend of increased rainfall that begins in the late spring and persists into the early winter months. With the rainfall consistent yet manageable, Porirua experiences a lush and vibrant landscape, perfect for enjoying outdoor festivities and the natural beauty of the region.
December in Porirua, New Zealand, wraps up the year with a humidity level of 81%, continuing the trend of pleasantly high moisture throughout the warmer months. Interestingly, the humidity has remained relatively stable from January to March at 79%, before making a gradual ascent, peaking at 86% during the colder winter months of June and July. As spring blossoms, humidity dips slightly, landing at 83% in both August and September, before settling back to 82% in October and November. This consistent humidity reflects Porirua's maritime climate, offering a refreshing environment that complements its stunning coastal landscapes.
In December, Porirua, New Zealand, experiences an intense UV Index of 13, reflecting an extreme exposure category with a burn time of just 10 minutes. This marks a continuation of the high UV levels noted in both January and February, where the UV Index also peaked at 13. As we move into the warmer months, the trend points to increasing solar intensity, with a significant drop in UV Index only occurring later in March (9) and subsequently decreasing through to more moderate conditions in May and June. With such harsh UV exposure in December, it’s essential to take precautions when enjoying the outdoors. For more details and daily updates, check out the Porirua UV Index.
UV Risk Categories
December in Porirua, New Zealand, shines brightly with a spectacular 336 hours of sunshine, marking it as the sunniest month of the year. This festive month stands in stark contrast to the winter chill of June, which sees only 169 hours of sunlight. As the year progresses, we observe a steady increase in sunshine hours, peaking in December after a build-up that begins as early as October with 286 hours. The trend reveals a clear transition from the shorter days of winter to the vibrant, sun-drenched days of late spring and early summer, inviting residents and visitors alike to bask in the warmth and beauty of the season.
In Porirua, New Zealand, the likelihood of sunny weather in December stands at 38%, indicating a notable drop as the year approaches its close. This aligns with a general trend observed from October to December, where the chances of sunshine decrease, falling from 40% in November. By contrast, the summer months of January and February showcase significantly higher probabilities of sunshine at 61% and 48%, respectively. Overall, December's weather can be somewhat unpredictable, and while sunnier days are indeed possible, travelers and locals alike may want to prepare for a mix of clouds and sunshine as the festive season unfolds.
In Porirua, New Zealand, December shines brightly with an impressive 15 hours of daylight, marking the peak of the summer season. This increase in daylight is part of a vibrant trend that begins in November with 14 hours and continues to climb through the festive month, providing ample sunlight for outdoor activities and celebrations. As the year progresses, daylight gradually diminishes from January's 14 hours down to the darker months, hitting a low of just 9 hours from May to July. However, there's a gentle rise again as spring approaches, resulting in 10 hours in August and 11 hours in September. This seasonal rhythm not only highlights the dramatic shifts in daylight but also invites residents and visitors alike to embrace the long, sunny days of December, perfect for soaking in the beauty of Porirua's stunning landscapes.
As December unfolds in Porirua, New Zealand, the wind dances at an average speed of 7.5 m/s (17 mph), a gentle reminder of the region's dynamic climate. This month's breezy conditions cap off a year marked by fluctuating winds, peaking in September at 8.9 m/s (20 mph). Notably, December's winds are a slight dip from the robust airflow in the preceding months, such as November, which averaged 8.3 m/s (18 mph). However, the winds maintain a consistency that reflects the region's characteristic maritime influence, bridging the transition into summer with a delightful breeziness. As the year wraps up, Porirua showcases a tapestry of wind trends, inviting locals and visitors alike to experience the vibrant atmosphere shaped by its ever-present gales.
Weather in Porirua varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Porirua, focusing on differences in temperature, rainfall, humidity, and UV levels.
In December, the weather tends to be mild, with temperatures ranging from a minimum of 10°C (51°F) to a maximum of 20°C (68°F) and an average temperature of 16°C (61°F). This month also brings significant precipitation, totaling 101 mm (4.0 in) over 11 days, contributing to a humidity level of 81%.
In contrast, January experiences slightly warmer conditions, with minimum temperatures of 11°C (52°F) and a maximum of 23°C (73°F), averaging 17°C (62°F). Notably, January is much drier, with only 33 mm (1.3 in) of rainfall over 6 days and a humidity level of 79%. For more detailed information, you can check Porirua weather in January.
December and February exhibit mild and inviting weather patterns, though February tends to be slightly warmer and drier. In December, temperatures range from a minimum of 10°C (51°F) to a maximum of 20°C (68°F), with an average of 16°C (61°F). This month sees a total of 101 mm (4.0 in) of precipitation over 11 days and a humidity level of 81%. In contrast, February enjoys a warmer spectrum, with temperatures ranging from 12°C (54°F) to 22°C (72°F), averaging 17°C (63°F). Additionally, February experiences less rainfall at 69 mm (2.7 in) over just 6 days, and slightly lower humidity at 79%. For a more detailed look at February's climate, you can visit Porirua weather in February.
When comparing the weather in December and March, we find that both months feature similar temperature ranges, with average temperatures of around 16°C (61°F) and maximums reaching up to 20°C (68°F) in December and 20°C (69°F) in March. However, December experiences slightly higher humidity at 81%, compared to March's 79%. Precipitation levels also differ, with December seeing 101 mm (4.0 in) spread over 11 days, while March has lower precipitation at 76 mm (3.0 in) over 9 days. For a more detailed look at March weather, you can check Porirua weather in March.
In December, the weather is generally mild, with temperatures ranging from a minimum of 10°C (51°F) to a maximum of 20°C (68°F), while April sees slightly cooler temperatures, with a minimum of 9°C (48°F) and a maximum of 19°C (67°F). Both months experience similar precipitation levels, with December receiving 101 mm (4.0 in) over 11 days and April seeing 104 mm (4.1 in) over 10 days. Humidity remains relatively high in both months, with December at 81% and April at 80%. For a closer look at what to expect during April, you can check Porirua weather in April.
In December, the weather tends to be warmer with average temperatures ranging from a minimum of 10°C (51°F) to a maximum of 20°C (68°F), accompanied by a relatively high humidity of 81%. The month sees around 101 mm (4.0 in) of precipitation over 11 days. In contrast, May presents cooler conditions, with temperatures averaging between 7°C (44°F) and 17°C (64°F) and a slight decrease in average precipitation to 88 mm (3.5 in) over the same number of days. The humidity in May is slightly higher at 84%, making the air feel a bit more damp. For more details on the weather specific to May, check out Porirua weather in May.
In comparing the weather between December and June, December presents milder temperatures with a minimum of 10°C (51°F) and an average of 16°C (61°F), peaking at a comfortable 20°C (68°F). In contrast, June offers cooler conditions, with temperatures starting at a minimum of 7°C (45°F) and averaging only 12°C (53°F), reaching a maximum of 16°C (61°F). Both months experience similar precipitation levels, with December seeing 101 mm (4.0 in) over 11 days and June recording 101 mm (4.0 in) over 12 days. Additionally, humidity is slightly higher in June at 86%, compared to December's 81%. For a detailed look at June weather trends, check Porirua weather in June.
December and July present quite contrasting weather conditions. In December, temperatures are notably warmer, with a minimum of 10°C (51°F) and averaging 16°C (61°F), reaching a maximum of 20°C (68°F). This month experiences about 101 mm (4.0 in) of precipitation over 11 days, with a humidity level of 81%. Conversely, July is cooler, with minimum temperatures around 7°C (44°F) and an average of 11°C (52°F), peaking at 15°C (59°F). It also sees a marginally higher precipitation of 108 mm (4.3 in) over 13 days, accompanied by increased humidity at 86%. For more details on the weather during this month, you can check Porirua weather in July.
When comparing the weather in December and August, December generally offers warmer temperatures, with averages around 16°C (61°F) and a maximum of 20°C (68°F), while August sees cooler averages of 11°C (52°F) and a maximum of 14°C (57°F). Despite being warmer, December has a higher precipitation total of 101 mm (4.0 in) spread over 11 days, compared to August's 89 mm (3.5 in) over 12 days. Both months experience high humidity levels, with December at 81% and August slightly higher at 83%. For more details, you can check out Porirua weather in August.
In December, the weather tends to be warmer with temperatures ranging from a minimum of 10°C (51°F) to a maximum of 20°C (68°F), averaging 16°C (61°F). This month also experiences higher precipitation, totaling 101 mm (4.0 in) over 11 days, with humidity around 81%. In contrast, September is generally cooler, with temperatures between 7°C (44°F) and 15°C (59°F), averaging just 11°C (52°F). While September sees slightly lower precipitation of 85 mm (3.4 in) spread over 12 days, it also has a slightly higher humidity level of 83%. For more detailed information on September weather, you can check Porirua weather in September.
December typically brings warmer weather compared to October, with average temperatures rising from 12°C (55°F) in October to around 16°C (61°F) in December. While both months experience precipitation on 11 days, December receives more rainfall, totaling 101 mm (4.0 in) compared to October's 72 mm (2.8 in). Despite the increased warmth and humidity in December, with levels around 81%, October's humidity remains slightly higher at 82%. For more detailed information on October weather, you can visit Porirua weather in October.
December weather shows a slight warming trend compared to November, with minimum temperatures averaging 10°C (51°F) and maximum temperatures reaching 20°C (68°F), compared to November's minimum of 9°C (49°F) and maximum of 18°C (64°F). Additionally, December experiences more rainfall, with 101 mm (4.0 in) over 11 days, while November receives 73 mm (2.9 in) across 10 days. Humidity levels remain high in both months, with December at 81% and November at 82%. For more detailed insights on November's weather, you can check Porirua weather in November.
As December rolls in, Porirua transforms with a mild ambiance that sets it apart from the cooler months preceding it. With average temperatures reaching a comfortable 16°C, this month pleasantly invites outdoor activities. Although humidity hovers around a notable 81%, bringing occasional rain, the 101 mm of precipitation spread across 11 days ensures the landscape remains lush and vibrant. Compared to the earlier chill, December offers a delightful warmth that heralds the summer season ahead, making it a significant transition time. For more insights on what to expect throughout the year, check out Porirua Climate.