Last updated: February 26, 2025
In Shellharbour during December, temperatures soar, with a maximum reaching 34°C (93°F), while the average settles comfortably at 19°C (67°F). The month sees a refreshing dip to a minimum of 11°C (53°F), providing a pleasant range for outdoor activities. However, be prepared for 107 mm (4.2 in) of precipitation across 15 days, contributing to a humidity level of 71% that enhances the summer feel. This combination of warmth and occasional rain creates a vibrant atmosphere, perfect for enjoying the coastal beauty of this Australian gem.
In December, Shellharbour, Australia, experiences a delightful transition into summer warmth. With minimum temperatures hovering around 11°C (53°F) and peaking at a sweltering 34°C (93°F), the month brings an inviting average of 19°C (67°F). This gradual climb in temperature reflects a trend from the cooler months, as December's warmth sets the stage for the hottest days of January and February ahead. The consistent rise in degrees from previous months signals the onset of beach season, making December an ideal time for outdoor festivities and coastal adventures in this beautiful region.
In December, Shellharbour experiences a notable culmination of its wet season, with precipitation totaling 107 mm (4.2 in) over approximately 15 days. This month retains a consistent pattern seen throughout the year, as rainfall tends to increase in the latter months, with December's showers serving as a transition from the spring deluge of November, which recorded 129 mm (5.1 in). The slight dip in rainfall compared to November indicates an easing of the most intense downpours, yet the persistent cloud cover and frequent rain ensure that the lush landscapes of Shellharbour remain vibrant. Overall, this month encapsulates the essence of an Australian summer, where rain nourishes the region while temperatures rise.
In Shellharbour, Australia, December brings a moderate humidity level of 71%, slightly above the annual average but distinctly lower than the peak seen in February at 74%. As we transition from the wet and humid summer months into the cooler season, a gradual decline in humidity is evident, particularly from August’s 68% down to October’s 61%. However, December's figure shows a slight uptick, indicating a resurgence of moisture in the air as the year closes. This trend reflects a natural ebb and flow, with late spring and summer months consistently exhibiting higher humidity, making Shellharbour a pleasantly temperate destination during the festive season.
In December, Shellharbour, Australia, faces an extreme UV Index of 14, necessitating diligent sun protection as the burn time is a swift 10 minutes. This trend of heightened UV levels carries over from the previous months, notably November's extreme index of 12. As we move away from the cooler months, the UV index climbs significantly, highlighting a seasonal pattern where the summer months present a greater risk for sunburn and skin damage. This dramatic increase in UV exposure underscores the importance of sun safety during this time. For more detailed insights on UV levels throughout the year, explore the Shellharbour UV Index.
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As the year draws to a close, December in Shellharbour, Australia, shines brighter than ever, basking in an impressive 327 hours of sunshine. This surge in sunlight marks a delightful culmination of a trend observed throughout the year, where the sun's embrace grows progressively warmer and more generous. From the 259 hours in January to the stunning peak in December, the month showcases a significant increase in daylight, reflecting a continuous rise, especially in the latter part of the year. Notably, October and November also contribute to this upward trajectory, boasting 302 and 310 hours respectively, setting the stage for December's radiant finale. With each month building on the last, December not only illuminates the landscape but also invites residents and visitors alike to revel in the idyllic warmth of a Southern Hemisphere summer.
In Shellharbour, the likelihood of sunny weather reaches its peak in the mid-year months, with April and August boasting impressive chances of sunshine at 65% and 62% respectively. As the year transitions into December, this sunny trend begins to wane, with the probability of clear skies dipping to 35%. This decrease in sunlit days follows a pattern noted in the months leading up to December, where November sees the least sun at 22%. Overall, while December may not be the sunniest month, it still offers a fair chance for bright days amidst the approaching summer, inviting residents and visitors to enjoy the outdoors despite the occasional cloud cover.
In Shellharbour, Australia, the rhythms of daylight create a captivating tapestry throughout the year. The sun stretches its golden hours to a generous 14 hours in both January and December, marking the pinnacle of daylight. As autumn transitions to winter, daylight diminishes, dipping to its lowest point of 9 hours in June. However, as the days lengthen following the winter solstice, daylight gradually increases again, with October and November offering 12 and 13 hours respectively, leading back into the welcoming embrace of December's extended daylight. This cyclical pattern not only enriches daily life but also enhances the vibrant outdoor culture that Shellharbour is known for.
As December settles in Shellharbour, Australia, the winds gently whisper along the coast with an average speed of 3.5 m/s (8 mph), reflecting the mild breezes typical of late spring. This month maintains a steady wind flow similar to the preceding November, emphasizing a trend of relatively calm conditions during this time of year. Notably, the wind speeds see a gradual increase from the lower averages in autumn, peaking in the winter months of July, August, and September, where gusts reach 4.0 m/s (9 mph). As the year wraps up, December's consistent breeze adds a refreshing touch to the warm summer atmosphere, inviting both locals and visitors to enjoy the vibrant coastal scenery.
The weather in Shellharbour 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 Shellharbour and find detailed weather information for every month.
In December, the weather in Shellharbour is characterized by a mild temperature range, with minimums around 11°C (53°F) and maximums peaking at 34°C (93°F). This month experiences significant precipitation, averaging 107 mm (4.2 in) over about 15 days, alongside a humidity level of 71%. In contrast, January tends to be slightly warmer, with average temperatures rising to 21°C (71°F) and maximums reaching up to 37°C (100°F). Precipitation decreases in January to 67 mm (2.6 in) across 11 days, with humidity remaining relatively stable at 70%. For more details, you can check Shellharbour weather in January.
When comparing the weather in December and February, it is evident that both months experience warm temperatures, but February tends to be slightly warmer overall. In December, the average temperature is 19°C (67°F), with highs reaching 34°C (93°F) and lows of 11°C (53°F). In contrast, February sees a marginally higher average temperature of 20°C (69°F), peaking at 36°C (97°F) while maintaining a minimum of 13°C (55°F). Precipitation also increases in February, with 145 mm (5.7 in) falling over 16 days compared to December's 107 mm (4.2 in) over 15 days. Additionally, February has a higher humidity level at 74%, compared to December's 71%. For more detailed information, check out Shellharbour weather in February.
In comparing the weather of December and March, we observe that both months have similar average temperatures around 19°C (67°F), but March tends to be slightly warmer, with a maximum of 35°C (95°F) compared to December's maximum of 34°C (93°F). However, March also experiences higher precipitation, with 207 mm (8.1 in) over 18 days, in contrast to December’s 107 mm (4.2 in) across 15 days. Additionally, humidity levels are marginally higher in March at 73%, compared to 71% in December. For more detailed information on March weather, you can visit Shellharbour weather in March.
When comparing December and April weather, December tends to be hotter, with temperatures ranging from a minimum of 11°C (53°F) to a maximum of 34°C (93°F), and an average of 19°C (67°F). In contrast, April's temperatures are slightly cooler, with a minimum of 8°C (47°F), an average of 17°C (62°F), and a maximum of 30°C (87°F). Additionally, December is characterized by higher precipitation levels, with 107 mm (4.2 in) over 15 days, compared to April's 42 mm (1.7 in) spread over just 8 days. Both months feature similar humidity levels, with December at 71% and April at 73%. For more detailed information, you can check Shellharbour weather in April.
When comparing the weather between December and May, we see notable differences in temperature and precipitation. December experiences a milder minimum temperature of 11°C (53°F) and can soar to a maximum of 34°C (93°F), while May has cooler temperatures with a minimum of 6°C (43°F) and a maximum of 23°C (75°F). Precipitation is more frequent in December, with 107 mm (4.2 in) over 15 days compared to May's 65 mm (2.5 in) over just 8 days. Interestingly, both months have similar humidity levels, with December at 71% and May slightly higher at 72%. For more details, you can check Shellharbour weather in May.
In comparing the weather between December and June, December tends to be much warmer, with average temperatures soaring to about 19°C (67°F), peaking at a maximum of 34°C (93°F). In contrast, June experiences significantly cooler conditions, with an average temperature of just 11°C (53°F) and a maximum of 20°C (67°F). Precipitation is more frequent in December, with rainfall on about 15 days, totaling 107 mm (4.2 in), while June sees slightly less precipitation, accumulating 63 mm (2.5 in) over approximately 12 days. Despite the milder temperatures in June, humidity levels remain similar, hovering around 70-71%. For more detailed insights, you can explore Shellharbour weather in June.
When comparing the weather in December and July, significant differences emerge in both temperature and precipitation. December experiences a much warmer climate, with average temperatures ranging from a minimum of 11°C (53°F) to a maximum of 34°C (93°F). In contrast, July remains considerably cooler, with average temperatures between 3°C (38°F) and 22°C (72°F). Rainfall is also more frequent in December, with 107 mm (4.2 in) falling over 15 days compared to just 44 mm (1.7 in) over 5 days in July. Although humidity levels are relatively similar at 71% in December and 69% in July, the overall feel of the weather varies greatly between these two months. For a deeper dive into the specifics of July weather, you can check out Shellharbour weather in July.
December and August present contrasting weather patterns. In December, the temperatures range from a minimum of 11°C (53°F) to a maximum of 34°C (93°F), with an average of 19°C (67°F). This month also sees significant precipitation, averaging 107 mm (4.2 in) over 15 days, along with a humidity level of 71%. In comparison, August is much cooler, with temperatures ranging from a minimum of 3°C (38°F) to a maximum of 22°C (72°F) and an average of 11°C (52°F). The precipitation in August totals 66 mm (2.6 in) over just 7 days, and the humidity is slightly lower at 68%. For more detailed information, you can visit Shellharbour weather in August.
September and December exhibit notable differences in weather patterns. December sees much warmer temperatures, ranging from a minimum of 11°C to a maximum of 34°C, while September starts cooler with temperatures dropping to a minimum of 5°C and peaking at 29°C. Additionally, December experiences higher precipitation levels, with 107 mm falling over 15 days, compared to September's 48 mm over just 7 days. The humidity is also notably higher in December at 71%, whereas September maintains a lower humidity level of 64%. For more detailed insights, you can check out Shellharbour weather in September.
December weather in Shellharbour is warmer compared to October, with average temperatures ranging from a minimum of 11°C (53°F) to a maximum of 34°C (93°F), while October features cooler averages ranging from 7°C (44°F) to 30°C (86°F). Although both months share similar precipitation levels, with December receiving 107 mm (4.2 in) over 15 days and October witnessing 108 mm (4.2 in) also across 15 days, December's higher humidity at 71% contributes to a more tropical feel. In contrast, October's humidity is relatively lower at 61%, making it a more comfortable month for outdoor activities. For more detailed information on October's weather, check out Shellharbour weather in October.
In comparing the weather of December and November, we see that December tends to be slightly warmer, with average temperatures ranging from a minimum of 11°C to a maximum of 34°C, compared to November's range of 9°C to 35°C. However, November had a slightly lower average temperature of 17°C compared to December's 19°C. Both months experienced a considerable amount of precipitation, with December seeing a total of 107 mm over 15 days while November recorded 129 mm over 13 days. Notably, December also had higher humidity at 71%, compared to November's 64%. For a detailed look at November's weather, you can visit Shellharbour weather in November.
As December rolls into Shellharbour, the weather transforms into a vibrant tapestry of summer warmth and occasional rain. With maximum temperatures soaring to a balmy 34°C, this month stands out as one of the hottest, inviting locals and tourists alike to embrace outdoor activities. In contrast to the cooler months, the December average is significantly higher, while nighttime temperatures gracefully cool to a comfortable 11°C. However, the month also brings some unpredictability, with approximately half the days experiencing rainfall, contributing to a humidity level of 71%, which can make the air feel quite muggy. For a more detailed overview of how December fits into the wider climate pattern, visit Shellharbour Climate.