Last updated: February 26, 2025
December in Newcastle, Australia, presents a vibrant summer experience characterized by warm temperatures and a blend of sunshine and rain. With maximum highs reaching 35°C (95°F) and an average temperature of 21°C (71°F), the weather invites outdoor activities, though evenings cool down to a comfortable 17°C (62°F). Visitors can expect about 74 mm (2.9 in) of rain over 11 days, resulting in a moderate level of humidity at 68%. This combination fosters a lush environment, perfect for exploring Newcastle's beautiful beaches and scenic landscapes while enjoying the lively atmosphere of the season.
In Newcastle, Australia, December marks the transition into the heights of summer with temperatures beginning to reach their peak. The month sees a minimum temperature of 17°C (62°F), rising to an average of 21°C (71°F) and soaring to a maximum of 35°C (95°F). This trend of increasing warmth from earlier months becomes particularly evident, as temperatures steadily climb from November’s highs. December’s sunny days and balmy evenings make it an ideal time for beach outings and outdoor activities, drawing residents and visitors alike to embrace the vibrant coastal lifestyle. As the year draws to a close, Newcastle’s temperatures invite everyone to soak up the summer sun.
In December, Newcastle experiences moderate precipitation, with 74 mm (2.9 in) falling over 11 days. This marks a slight increase from November's 81 mm but showcases a consistent trend of rainfall as the year winds down. Compared to the earlier months, particularly the wettest March at 201 mm, December is relatively drier, signaling a transition towards the drier summer months ahead. The rainfall in December creates a perfect balance, nourishing the region's lush landscapes while providing a refreshing end to the year. Overall, the month encapsulates a mix of needed moisture and pre-summer optimism.
In December, Newcastle, Australia experiences a humidity level of 68%, contributing to the city's gradual cooling trend as it transitions into summer. This level reflects a slight increase from the previous months, showcasing a shift from the drier air of October (55%) and November (57%). Throughout the year, humidity generally rises, peaking in April (75%) before gradually declining again in the latter months. The data indicates that as residents enjoy the warmer summer temperatures, they can expect a notable yet comfortable level of humidity, typical for this coastal locale.
As December rolls around in Newcastle, Australia, the UV Index peaks at an extreme 15, mirroring the intensity felt earlier in the year during January and February. This consistent high level of solar radiation signifies a burn time of just 10 minutes, prompting residents and visitors alike to exercise caution when outdoors. With the UV Index remaining in the extreme category for several months, including November, it highlights a clear trend of intense sun exposure during the peak summer season. As you enjoy the beautiful beaches and outdoor activities, remember to stay protected! For more details, visit the Newcastle UV Index.
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December brings a brilliant burst of sunshine to Newcastle, Australia, with an impressive 327 hours of sunlight, marking it the sunniest month of the year. This vibrant finale to the year signals a notable increase from the hazy days of winter, showcasing a consistent upward trend as the months progress. From 222 hours in June to a peak in December, the journey through increasing daylight is particularly striking, with each month gradually adding more hours to bask in the sun's warmth. This escalation reflects the region’s inviting summer climate, perfect for outdoor activities and festive gatherings, making December a time of joy and endless possibilities.
As December rolls into Newcastle, Australia, the likelihood of sunny weather dips to 45%, marking a noticeable decline from the warmer months. This trend reflects a gradual decrease in sunshine probability, especially when compared to the peak of 69% experienced in August. Following a relatively bright April and May, where chances hovered between 56% and 68%, the approach of summer brings a mixed bag of weather, with November hitting a low of 27%. Overall, while December is not the sunniest month, it still offers opportunities for those hoping to catch some rays before the year closes.
In Newcastle, Australia, the daylight duration follows a captivating seasonal rhythm that peaks during the summer months. December shines brightly with 14 hours of daylight, unmatched throughout the year, as the days lengthen dramatically from the shorter days of winter. Following a gradual decrease in daylight from March's 12 hours to just 9 hours in June, the cycle reverses again, and by November, daylight stretches back to 13 hours. This gradual ebb and flow, with the longest days in December and January, creates a vibrant atmosphere that invites outdoor activities and exploration, embodying the essence of Australian summer.
In Newcastle, Australia, the December wind brings a gentle shift as the average wind speed settles at 5.2 m/s (12 mph). This slight decrease follows a pattern of fluctuating winds throughout the year, with the highest speeds recorded in March, July, and November, each reaching 5.9 m/s (13 mph). The prevailing trend indicates a seasonal ebb and flow, where the more robust winds of mid-year gradually soften as summer approaches. Interestingly, while December is milder than the spring and early summer months, it still maintains a refreshing breeze, providing a pleasant backdrop for those enjoying the warm Australian sun. With an average speed just shy of the year's peak, December encapsulates the transition into summer, inviting both locals and visitors to embrace the beautiful coastal vibes.
The weather in Newcastle changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of December's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Newcastle and find detailed weather information for every month.
In December, temperatures typically range from a minimum of 17°C (62°F) to a maximum of 35°C (95°F), with an average temperature of 21°C (71°F). The month experiences about 74 mm (2.9 in) of precipitation over 11 days, contributing to a humidity level of 68%. In contrast, January sees slightly warmer average temperatures, peaking at a maximum of 33°C (92°F) and averaging 23°C (74°F), while still maintaining a minimum of 17°C (64°F). The month is drier, with only 53 mm (2.1 in) of rain falling over 7 days, leading to a lower humidity of 65%. For a detailed look at January weather, you can visit Newcastle weather in January.
In December, the weather features a minimum temperature of 17°C (62°F) and an average of 21°C (71°F), peaking at a maximum of 35°C (95°F). The month is characterized by moderate precipitation totaling 74 mm (2.9 in) over 11 days, with humidity hovering around 68%.
In contrast, February sees a slight increase in the minimum temperature to 18°C (65°F) and an average of 23°C (73°F), along with a maximum of 33°C (92°F). Precipitation ramps up significantly to 126 mm (5.0 in), also over 11 days, and humidity remains comparable at 69%.
For more detailed insights on the weather in February, you can check Newcastle weather in February.
December and March present quite distinct weather characteristics. In December, temperatures range from a minimum of 17°C (62°F) to a maximum of 35°C (95°F), with an average of 21°C (71°F) and relatively lower precipitation of 74 mm (2.9 in) over 11 days, resulting in a humidity level of 68%. In contrast, March experiences slightly cooler temperatures, with an average of 22°C (72°F), a maximum of 32°C (90°F), and the same minimum of 17°C (63°F). However, March is notably wetter, with precipitation reaching 201 mm (7.9 in) over 17 days and a slight increase in humidity to 72%. For more detailed weather insights in March, you can visit Newcastle weather in March.
December and April present distinct weather patterns. In December, temperatures generally range from a mild minimum of 17°C (62°F) to a sweltering maximum of 35°C (95°F), with an average of 21°C (71°F). This month also sees higher precipitation, with 74 mm (2.9 in) over approximately 11 rainy days and a humidity level of 68%. In contrast, April experiences cooler temperatures, with a minimum of 14°C (57°F) and a maximum of 29°C (85°F), averaging around 20°C (69°F). Precipitation is lighter at 48 mm (1.9 in) over about 10 days, and humidity slightly rises to 75%. For more detailed insights on April weather, visit Newcastle weather in April.
In December, the weather tends to be warmer with temperatures ranging from a minimum of 17°C (62°F) to a maximum of 35°C (95°F), averaging around 21°C (71°F). The month experiences more precipitation, totaling 74 mm (2.9 in) over approximately 11 days, and the humidity is relatively moderate at 68%. In contrast, May presents a cooler climate with temperatures ranging from a minimum of 11°C (52°F) to a maximum of 24°C (76°F), averaging about 18°C (64°F). Precipitation in May is slightly lower at 56 mm (2.2 in) over 9 days, with a higher humidity level of 74%. For a detailed look at the weather patterns in May, you can visit Newcastle weather in May.
When comparing the weather in December and June, significant differences emerge. December experiences warmer temperatures, with a minimum of 17°C and an average of 21°C, peaking at a maximum of 35°C. Conversely, June is much cooler, with a minimum of 9°C and an average of just 15°C, reaching a maximum of 22°C. Additionally, June sees higher precipitation, totaling 129 mm over 15 days compared to December's 74 mm across 11 days. The humidity levels are relatively similar, at 68% in December and 72% in June. For a more detailed look at June's weather, visit Newcastle weather in June.
When comparing the weather in December and July, notable differences emerge. December features much warmer temperatures with an average of 21°C (71°F), peaking at a maximum of 35°C (95°F), whereas July is significantly cooler, with an average of 15°C (59°F) and a maximum of 21°C (71°F). Despite December experiencing slightly higher precipitation levels at 74 mm (2.9 in) over 11 days, July has a comparable total of 69 mm (2.7 in) but with only 6 days of rain. Both months exhibit the same humidity level of 68%, indicating that while December is warmer and wetter, July presents a much cooler and drier climate. For more detailed insights, check out Newcastle weather in July.
In December, the weather tends to be significantly warmer compared to August, with average temperatures ranging from a pleasant 21°C (71°F) to a hot 35°C (95°F), while August sees much cooler averages of 15°C (59°F) and a maximum of 22°C (72°F). December also experiences more precipitation, averaging 74 mm (2.9 in) over 11 days, in contrast to August's lighter rainfall of 44 mm (1.7 in) spread across just 5 days. Additionally, the humidity levels are fairly similar, hovering around 68% in December and 67% in August, but the overall sensation of warmth in December is much more pronounced. For a deeper insight into August's weather, visit Newcastle weather in August.
December and September exhibit notable differences in weather patterns. In December, temperatures range from a minimum of 17°C (62°F) to a maximum of 35°C (95°F), with an average of 21°C (71°F), making it significantly warmer than September, where temperatures fluctuate between 11°C (52°F) and 28°C (83°F), with an average of 17°C (62°F). Additionally, December experiences more precipitation, with 74 mm (2.9 in) falling over 11 days, compared to September's 47 mm (1.9 in) spread over 7 days. Humidity levels are also slightly higher in December at 68%, compared to 63% in September. For more specific details about September weather in Newcastle, you can visit Newcastle weather in September.
When comparing the weather in December and October, it’s evident that December tends to be warmer and more humid. In December, temperatures range from a minimum of 17°C (62°F) to a maximum of 35°C (95°F), with an average of 21°C (71°F). In contrast, October's temperatures range from a minimum of 13°C (56°F) to a maximum of 28°C (83°F), averaging 18°C (65°F). Additionally, December experiences higher humidity at 68%, compared to October's more comfortable 55%. While December has slightly less precipitation at 74 mm (2.9 in) over 11 days, October sees a bit more rain, with 93 mm (3.6 in) over 10 days. For more details, check out Newcastle weather in October.
December weather in Newcastle is characterized by slightly warmer temperatures compared to November, with minimums reaching 17°C (62°F) and maximums peaking at 35°C (95°F), while November has minimums of 14°C (58°F) and maximums of 33°C (91°F). The average temperature in December is around 21°C (71°F), compared to November's 20°C (68°F). However, December experiences more frequent precipitation, with 74 mm (2.9 in) falling over 11 days, contrasted with November’s 81 mm (3.2 in) over just 9 days. Additionally, humidity levels rise in December to 68%, compared to November’s lower 57%. For more details, you can check Newcastle weather in November.
As December unfolds in Newcastle, the weather takes on a vibrant and warm character, setting it apart from the rest of the year. With an average temperature hovering around a comfortable 21°C, December offers a delightful respite from the cooler months, making it an ideal time for outdoor adventures. While it experiences a slight uptick in humidity, reaching around 68%, the occasional rain—spread over 11 days—ensures that the lush landscapes remain vibrant. This combination of warmth and slight humidity creates a unique atmosphere, perfect for enjoying the festive season under the Australian sun. For a deeper dive into what to expect, check out Newcastle Climate.