Last updated: August 31, 2025
December in Oamaru, New Zealand showcases a delightful mix of temperatures and weather patterns. With maximum temperatures peaking at 24°C (76°F) and an average of 15°C (58°F), the month offers a pleasant, warm climate perfect for outdoor activities. However, temperatures can dip to a minimum of 8°C (47°F) during the cooler nights. While residents and visitors enjoy this summery vibe, they should also prepare for moisture, as 101 mm (4.0 in) of rain typically falls over 16 days, leading to a humid environment with an average humidity of 81%. Overall, December balances warmth and refreshing rainfall, creating a unique atmosphere reflective of Oamaru’s charm.
In December, Oamaru basks in pleasant summer temperatures, marked by a minimum of 8°C (47°F) and a comfortable average of 15°C (59°F). The city experiences its maximum highs reaching 24°C (76°F), providing an inviting atmosphere for locals and visitors alike. This month stands out as a continuation of the warming trend that begins in spring and peaks as summer approaches, making Oamaru an appealing destination for outdoor activities and exploration. Coupled with relatively mild evenings, December is the perfect time to enjoy the natural beauty and vibrant culture of this charming New Zealand town.
December brings a notable increase in precipitation in Oamaru, New Zealand, with 101 mm (4.0 in) of rain recorded, making it one of the wettest months of the year alongside November. Over the course of 16 rainy days, residents can expect frequent downpours, contributing to lush landscapes as the month transitions into summer. This trend of heightened rainfall in December reflects a pattern seen throughout the year, where wetter months appear to cluster in the latter half, especially notable between November and December. As the year wraps up, this peak in precipitation not only enhances the region's natural beauty but also prepares it for a vibrant growth season ahead.
In December, Oamaru experiences an average humidity of 81%, characteristic of the region's consistent climate patterns. As the year progresses from the drier months of January and February, where humidity dips to 79% and 76% respectively, a gradual increase becomes apparent. The levels climb steadily through the autumn months, peaking at 85% during the colder June and July. As spring ushers in a slight drop in humidity, December maintains a comfortable level, reflecting a rich balance amidst rising temperatures. Notably, this humidity trend not only showcases Oamaru's maritime influence but also ensures a refreshing atmosphere, making it a pleasant time for outdoor activities.
In December, Oamaru experiences a UV Index of 12, placing it back in the extreme exposure category, akin to experiences earlier in the summer months of January and February. This elevation suggests that sun protection is crucial, as the burn time is a mere 10 minutes. Following a gradual decline in UV levels from March to May, where the index dropped to as low as 3 in May, the trend noticeably shifts as spring transitions into summer. This pattern indicates the importance of vigilance against sun exposure during December, especially after enjoying the mildness of autumn and early winter. For detailed UV forecasts and safety tips, visit Oamaru UV Index.
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In December, Oamaru basks in the glow of approximately 345 hours of sunshine, marking a radiant conclusion to the year. This not only represents the highest monthly total but also highlights a notable upward trend in daylight hours as the year progresses. Following the warmer months of November with 319 hours, the sun's embrace in December offers a delightful contrast to the dimmer days of winter. The transition is clear; from the cool depths of June and July, averaging only 159 and 178 hours, respectively, the gradual increase in sunshine through spring culminates in this sun-drenched month. December's brilliance truly sets the stage for a vibrant summer in Oamaru, inviting both locals and visitors to celebrate the warmth and beauty of this charming seaside town.
In Oamaru, New Zealand, the likelihood of sunny weather in December is relatively modest, with only a 26% chance of sunshine. This reflects a declining trend as we embrace the final month of spring, following the peak seen in September when the sun graced the region 52% of the time. As we transition from October and November, both of which also display diminished chances of sunny days at 28%, December remains one of the less favorable months for sunshine. Overall, while summer is just around the corner, December in Oamaru may still bring some cloud cover and occasional rain.
In Oamaru, New Zealand, December marks the pinnacle of daylight, where residents bask in a generous 15 hours of sunlight that invites outdoor adventures and festive gatherings. Following the gradual decline from 15 hours in January to just 8 hours in June, daylight steadily increases again, peaking in December and reflecting the warm embrace of summer. The shifting daylight hours illustrate the distinct seasonal rhythms of the region, with daylight extending notably in the latter part of the year, fostering a vibrant atmosphere as the year winds down. This seasonal pattern enhances the charm of Oamaru, making December a delightful month for both locals and visitors to soak in the sun and celebrate the joys of the season.
As December rolls into Oamaru, the winds pick up slightly, reaching an average speed of 4.3 m/s (10 mph), aligning with the gustier months of January and October. This uptick marks a gentle return to breezier days after the calmer spells of late autumn. Notably, the wind speed trends indicate that while the colder months see a drop in intensity, December's breeziness hints at a refreshing transition into summer. The winds throughout the year show a dynamic rhythm, peaking during the warmer months, yet December strikes a blend of robustness and mildness, creating the perfect backdrop for enjoying the picturesque scenery Oamaru has to offer.
Weather in Oamaru varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Oamaru, focusing on differences in temperature, rainfall, humidity, and UV levels.
December and January in Oamaru present a transition in weather patterns. While both months have an average minimum temperature of 8°C (47°F) and an average temperature around 15°C (58°F), January sees a slight increase in the maximum temperature, rising to 28°C (83°F) compared to December's peak of 24°C (76°F). Precipitation levels decrease from 101 mm (4.0 in) over 16 days in December to 79 mm (3.1 in) across 12 days in January, indicating a drier start to the year. Additionally, the humidity is slightly lower in January at 79%, compared to the 81% recorded in December. For more detailed information, check out Oamaru weather in January.
In December, Oamaru experiences mild temperatures with a minimum of 8°C (47°F) and an average of 15°C (58°F), peaking at 24°C (76°F). The month is relatively wet, with 101 mm (4.0 in) of precipitation falling over 16 days, contributing to a high humidity level of 81%. In contrast, February sees slightly increased temperatures, with a maximum of 28°C (82°F) and an average of 15°C (60°F), while maintaining the same minimum temperature of 8°C (47°F). Precipitation decreases marginally to 100 mm (3.9 in) over 11 days, and humidity also drops to 76%. Overall, February emerges as a warmer and somewhat drier month compared to December. For more detailed weather information, visit Oamaru weather in February.
In December, the weather tends to be slightly warmer, with average temperatures ranging from a minimum of 8°C (47°F) to a maximum of 24°C (76°F), while March sees a similar maximum temperature of 24°C (75°F) but with a slightly lower average of 14°C (58°F). Precipitation levels are higher in December, with rainfall totaling 101 mm (4.0 in) over 16 days, compared to March's 66 mm (2.6 in) across just 11 days. Humidity levels also fluctuate minimally, with December averaging 81% versus March's 78%. For a detailed look at the weather trends, visit Oamaru weather in March.
December and April present varying weather patterns, reflecting the transition from late spring to early autumn. In December, temperatures are generally warmer, with minimums around 8°C (47°F) and maximums reaching 24°C (76°F), while April’s temperatures range from a cooler 5°C (41°F) to a maximum of 22°C (73°F). Precipitation in December is higher, totaling 101 mm (4.0 in) over 16 days, compared to April's 86 mm (3.4 in) across 12 days. Despite the differences in temperature and rainfall, both months share a consistent humidity level of 81%. For a closer look at the weather specifics in April, you can visit Oamaru weather in April.
December and May present contrasting weather patterns, highlighting the shift in seasons. In December, the climate is generally milder with temperatures ranging from a minimum of 8°C (47°F) to a maximum of 24°C (76°F), averaging around 15°C (58°F). The month also experiences more rainfall, with a total precipitation of 101 mm (4.0 in) over 16 days, alongside a humidity level of 81%.
In contrast, May tends to be cooler, with temperatures ranging from a low of 2°C (36°F) to a high of 17°C (64°F) and an average of 10°C (50°F). The precipitation is notably less, totaling 40 mm (1.6 in) over just 8 days, although humidity is slightly higher at 84%. For more detailed information, you can check Oamaru weather in May.
December weather is notably warmer compared to June, with temperatures ranging from a minimum of 8°C (47°F) to a maximum of 24°C (76°F) and an average of 15°C (58°F). In contrast, June experiences cooler temperatures, with a minimum of 2°C (36°F) and a maximum of 16°C (61°F), and an average of just 8°C (46°F). December also sees higher precipitation levels at 101 mm (4.0 in) over 16 days, while June has significantly less rainfall at 39 mm (1.5 in) over only 9 days. Notably, both months have high humidity levels, with December at 81% and June slightly higher at 85%. For more detailed information, you can check Oamaru weather in June.
December weather is considerably warmer than July, with average temperatures soaring to around 15°C (58°F) and a maximum of 24°C (76°F). In contrast, July's average temperature is much lower at 7°C (45°F), with maximums peaking at only 15°C (59°F). December also experiences more rainfall, averaging 101 mm (4.0 in) over 16 days, compared to July's 69 mm (2.7 in) across just 10 days. Both months have high humidity, with December at 81% and July slightly higher at 85%. For more detailed insights, you can check Oamaru weather in July.
When comparing the weather in December and August, December typically boasts warmer temperatures, with an average of 15°C (58°F) and a maximum of 24°C (76°F), while August features a cooler average of 8°C (46°F) and a maximum of just 16°C (61°F). In terms of precipitation, December sees significantly more rainfall, totaling 101 mm (4.0 in) over 16 days, compared to August's 39 mm (1.5 in) over only 9 days. Additionally, humidity levels are slightly higher in August at 84%, compared to 81% in December, contributing to a damp chill in the winter month. For a closer look at how Oamaru experiences weather in August, you can check out Oamaru weather in August.
In December, the weather is significantly warmer compared to September, with temperatures averaging 15°C (58°F) and reaching a maximum of 24°C (76°F). In contrast, September has cooler temperatures, with an average of 9°C (49°F) and a high of only 18°C (65°F). Additionally, December experiences more rainfall, with 101 mm (4.0 in) over 16 days, while September sees just 46 mm (1.8 in) across 9 days. Humidity levels are relatively similar, with December at 81% and September slightly higher at 83%. For a closer look at September's weather specifics, you can check out Oamaru weather in September.
In comparing the weather between December and October, December displays a warmer climate, with average temperatures ranging from a minimum of 8°C (47°F) to a maximum of 24°C (76°F), in contrast to October's cooler averages of 4°C (39°F) to 20°C (68°F). Additionally, December experiences higher precipitation with 101 mm (4.0 in) over 16 days, compared to October's 80 mm (3.2 in) over 15 days. Humidity levels remain similar, with December at 81% and October slightly lower at 80%. For more details about October's weather, you can visit Oamaru weather in October.
In comparing the weather of December and November, December tends to be slightly warmer, with average temperatures reaching 15°C (58°F) compared to November's 13°C (55°F). December also has a higher average minimum temperature of 8°C (47°F) versus November's 5°C (42°F), but both months have similar maximum temperatures, with November peaking at 25°C (77°F) and December at 24°C (76°F). Precipitation levels are quite comparable as well, with December experiencing 101 mm (4.0 in) over 16 days and November almost mirroring that with 100 mm (4.0 in) over 12 days. Humidity is slightly higher in December at 81% compared to 78% in November. For a detailed look at November's weather, check out Oamaru weather in November.
As December settles in Oamaru, locals and visitors alike can expect a noticeable shift in the weather compared to the cooler months. With temperatures peaking at a pleasant 24°C (76°F), the warmth invites outdoor activities and scenic exploration. The increase in humidity to 81% adds a tropical feel, while the average temperature of 15°C (58°F) ensures comfortable evenings. However, be prepared for some rain, as December sees about 101mm of precipitation spread over 16 days. This month serves as a gentle reminder that while summer brings delightful warmth, it also carries the occasional shower. For an in-depth look at what the rest of the year holds, check out Oamaru Climate.