Last updated: February 25, 2025
Experience the warmth of Wollongong, Australia, in December, where temperatures reach a balmy maximum of 28°C (83°F) and settle around a comfortable average of 20°C (69°F). Nights can be cooler, with minimums dipping to 15°C (59°F), making for pleasant evenings. While December brings about 86 mm (3.4 in) of rainfall across 14 days, a consistent humidity of 71% adds a touch of tropical allure to this scenic coastal city. Embrace the vibrant summer atmosphere, where sunny days intertwine with refreshing breezes and occasional showers, perfect for outdoor activities and relaxation.
In Wollongong, Australia, December marks the official arrival of summer, showcasing a delightful shift in temperatures. With a minimum of 15°C (59°F), it’s a pleasant start to the month, while the average hovers around 20°C (69°F)—perfect for outdoor activities. The maximum climbs to a warm 28°C (83°F), allowing for sun-soaked beach days and balmy evenings. Compared to the cooler months preceding it, December offers a refreshing warmth, signaling a transition into a vibrant season filled with life and energy. Whether you're exploring the coastal beauty or enjoying a pleasant picnic, Wollongong's December temperatures create an inviting atmosphere that is simply hard to resist.
In Wollongong, December stands out as a month of moderate precipitation, averaging 86 mm (3.4 in) over approximately 14 days of rain. This marks a noticeable decrease from the rainfall seen in the preceding months, particularly November, which recorded 121 mm (4.8 in). Interestingly, December's totals are somewhat higher than those in the summer months of January and April, suggesting a shift in weather patterns as the year wraps up. While it may not reach the levels of March, known for its 217 mm (8.6 in) rainfall, the consistent drizzle of December offers a refreshing transition into the new year, inviting locals and visitors alike to appreciate the lush landscapes that define this coastal city.
As December arrives in Wollongong, Australia, the humidity averages around 71%, reflecting a slight increase from the drier months of October and November, which recorded 61% and 64% respectively. This trend highlights a return to more humid conditions typical of the summer months, as the city shifts from the cooler winter season where humidity levels dipped to a low of 68% in August. Overall, the humidity ranges from a high of 74% in February to lows of 61% in October, creating a moderate and stable atmosphere throughout the year. As summer approaches, residents can expect a gradual rise in humidity, signaling the end of the drier cold months.
In Wollongong, Australia, December marks a significant peak in the UV Index, reaching a soaring 14, categorized as extreme. This reflects a broader trend observed throughout the year, where the summer months consistently show heightened UV levels. Following closely behind, November and January also showcase extreme values of 12 and 14, respectively, with a quick 10-minute burn time that demands diligent sun protection. As the year transitions toward the cooler months, there’s a noticeable drop in UV intensity, settling to a moderate 5 in May before intensifying again from September onward. With such extremes this close to the festive season, it's crucial for residents and visitors alike to stay informed and protect themselves from harmful rays. For a detailed overview, check out the Wollongong UV Index.
UV Risk Categories
December in Wollongong, Australia, is a vibrant celebration of sunlight, boasting an impressive 327 hours of sunshine. This peak in daylight marks a clear trend as the year winds down, with December's hours significantly outshining the earlier months, especially compared to the colder winter months of June and July, which see around 222 and 247 hours respectively. As the calendar transitions from spring into summer, sunlight steadily increases, culminating in a radiant finale that paves the way for the warm season ahead. Notably, December’s generous sunlight offers a cheerful contrast to the slight dip in hours during May and June, reflecting Wollongong's unique climate that invites both locals and visitors to bask in its sun-kissed shores and enjoy outdoor activities during the festive season.
In Wollongong, Australia, December offers a 42% chance of sunny weather, reflecting a trend of variability as the year progresses. While earlier months such as April and August showcase higher probabilities of sunshine—at 70% and 63% respectively—December's likelihood falls below the average for the warmer months. Interestingly, as the year transitions into summer, the chance of clear skies dips below that of both November and the preceding autumn months. This fluctuation emphasizes the region's diverse climatic patterns, making December a somewhat unpredictable time for sun-seekers. As the countdown to the holidays begins, residents and visitors alike should carry their sunglasses along with a flexible outdoor plan.
In Wollongong, Australia, the daylight duration exhibits a captivating seasonal rhythm, peaking in December with an impressive 14 hours of sunlight. Following the vibrant holiday season, daylight begins to wane as the year progresses. January and December share this length, providing ample time for outdoor activities and beach visits, while the hours gradually decrease to 9 hours in June, marking the winter solstice. As the calendar turns, daylight begins to extend again from September onward, culminating in a steady increase in November and back to 13 hours before reaching its zenith again in December. This cyclical pattern not only highlights the beauty of seasonal changes but also invites residents and visitors alike to embrace the rich variety each month brings to Wollongong's sunlit days.
In Wollongong, Australia, the December winds provide a gentle yet invigorating breeze as the year draws to a close, averaging 5.9 m/s (13 mph). This wind speed is consistent with the preceding months of November and February, both also registering at 5.5 m/s (12 mph) and 5.9 m/s (13 mph) respectively. As we look back over the year, a subtle trend emerges: the winds are generally mild, with notable peaks in March and September, where speeds reach 6.1 m/s (14 mph). Overall, while December may not see the highest gusts, it fits snugly within the moderate wind patterns characteristic of Wollongong's summer transition, creating an ideal setting for coastal adventures and leisurely strolls along the shoreline.
The weather in Wollongong 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 Wollongong and find detailed weather information for every month.
December and January showcase a transition in weather patterns, with January generally being warmer and drier than December. In December, temperatures range from a minimum of 15°C (59°F) to a maximum of 28°C (83°F), with an average of 20°C (69°F) and significant rainfall of 86 mm (3.4 in) over 14 days, resulting in a humidity level of 71%. Conversely, January sees slightly higher temperatures, with a minimum of 16°C (60°F), an average of 22°C (72°F), and a maximum of 31°C (87°F). Additionally, precipitation decreases to 57 mm (2.2 in) over just 9 days, bringing the humidity down to 70%. For more detailed insights into January's climate, visit Wollongong weather in January.
In December, the weather typically features a minimum temperature of 15°C (59°F) and an average of 20°C (69°F), with maximums reaching up to 28°C (83°F). This month sees about 86 mm (3.4 in) of precipitation over roughly 14 days, accompanied by a humidity level of 71%.
In contrast, February tends to be slightly warmer, with minimum temperatures of 17°C (62°F) and an average of 22°C (72°F), peaking at 29°C (85°F). However, February also experiences increased rainfall, totaling 135 mm (5.3 in) across 15 days, and a higher humidity of 74%. For more detailed insights into the February climate, you can visit Wollongong weather in February.
In December, temperatures in Wollongong average around 20°C (69°F), with a maximum of 28°C (83°F) and a minimum of 15°C (59°F). The month experiences about 86 mm (3.4 in) of precipitation over 14 days, resulting in a humidity level of 71%. In contrast, March sees slightly warmer conditions, with an average temperature of 21°C (70°F) and highs reaching up to 31°C (88°F). However, it also brings significantly more rainfall, totaling 217 mm (8.6 in) over 18 days, while humidity rises slightly to 73%. For more detailed weather information, you can visit Wollongong weather in March.
When comparing the weather in December and April, we see some interesting similarities and differences. December typically enjoys slightly warmer temperatures, with averages ranging from a minimum of 15°C (59°F) to a maximum of 28°C (83°F), while April sees a bit cooler with temperatures averaging from 14°C (57°F) to 27°C (81°F). Precipitation levels are higher in December at 86 mm (3.4 in) over 14 days compared to April's 55 mm (2.2 in) over 9 days, indicating that December is generally wetter. Humidity remains relatively constant, with December at 71% and April slightly higher at 73%. For more detailed insights about the weather in April, you can visit Wollongong weather in April.
December generally boasts warmer temperatures compared to May, with averages reaching 20°C (69°F) and maximums of 28°C (83°F), while May features cooler averages of 17°C (63°F) and maximums of 23°C (73°F). Both months experience similar levels of precipitation, with December receiving 86 mm (3.4 in) over approximately 14 days, while May sees slightly less at 82 mm (3.2 in) across 8 days. Humidity remains fairly consistent between the two months, hovering around 71% in December and 72% in May. For a detailed look at the specifics of May weather, you can check out Wollongong weather in May.
In comparing the weather of December and June, it is evident that December boasts warmer temperatures, with a minimum of 15°C (59°F) and an average of 20°C (69°F), reaching a maximum of 28°C (83°F). In contrast, June features cooler conditions, with temperatures ranging from a minimum of 9°C (49°F) to a maximum of 21°C (70°F) and an average of 15°C (59°F). While both months experience similar precipitation days, June has a higher total rainfall of 122 mm (4.8 in) compared to December's 86 mm (3.4 in). Humidity levels remain relatively constant, with December at 71% and June at 70%. For more detailed information, check out Wollongong weather in June.
December and July present contrasting weather patterns. In December, temperatures are typically warmer, with a minimum of 15°C (59°F) and an average of 20°C (69°F), reaching a maximum of 28°C (83°F). The month also experiences more rainfall, with 86 mm (3.4 in) of precipitation over 14 days and a humidity level of 71%. In stark contrast, July sees cooler temperatures, with a minimum of 9°C (49°F) and an average of 14°C (58°F), peaking at 21°C (71°F). Moreover, it has less rainfall, with 59 mm (2.3 in) over just 5 days and slightly lower humidity at 69%. For a more detailed look at July weather, you can visit Wollongong weather in July.
In December, the weather is noticeably warmer, with temperatures ranging from a minimum of 15°C (59°F) to a maximum of 28°C (83°F), compared to August, where temperatures are cooler, peaking at 21°C (70°F). December experiences higher humidity at 71% and more precipitation, with 86 mm (3.4 in) falling over 14 days, whereas August sees only 70 mm (2.8 in) over 7 days, leading to a drier overall experience. For more detailed information about August's weather, you can check Wollongong weather in August.
In December, the weather is notably warmer than in September, with average temperatures ranging from a minimum of 15°C (59°F) to a maximum of 28°C (83°F), compared to September's range of 10°C (51°F) to 24°C (76°F). December also experiences higher humidity levels at 71%, contributing to a more tropical atmosphere, while September enjoys a slightly drier feel with 64% humidity. Additionally, December sees more precipitation, totaling 86 mm (3.4 in) over 14 days, compared to September's 51 mm (2.0 in) over just 7 days. For more details on September weather patterns, visit Wollongong weather in September.
In comparing the weather between October and December, we see that December generally offers warmer temperatures, with a minimum of 15°C and an average of 20°C, compared to October's lower minimum of 13°C and average of 17°C. Both months experience relatively high humidity, but December is slightly more humid at 71%, whereas October has a humidity of 61%. Additionally, December sees a bit less precipitation overall, with 86 mm over 14 days, compared to October's 98 mm over 13 days. For more specifics on October's weather, you can check Wollongong weather in October.
In December, the weather tends to be slightly warmer than in November, with minimum temperatures rising from 12°C (54°F) to 15°C (59°F) and average temperatures increasing from 18°C (65°F) to 20°C (69°F). However, December experiences a maximum temperature of 28°C (83°F), which is lower than November’s peak of 30°C (87°F). Precipitation is also lower in comparison, with December receiving 86 mm (3.4 in) over 14 days, compared to November’s 121 mm (4.8 in) over just 10 days. Additionally, humidity levels are higher in December at 71%, compared to 64% in November. For more detailed insights on November weather, you can visit Wollongong weather in November.
As December rolls in, Wollongong experiences a distinct shift in its weather patterns, characterized by warmer temperatures and increased humidity compared to the preceding months. With a pulsating average temperature hovering around 20°C (69°F) and maximum highs reaching up to 28°C (83°F), the city offers a vibrant atmosphere perfect for summer activities. However, it's also a month marked by increased rainfall, accumulating around 86 mm (3.4 in) over 14 days, which adds a refreshing touch to the balmy weather. This combination of warmth and humidity makes December a unique time to enjoy Wollongong’s beautiful beaches and lush landscapes. For a deeper understanding of what to expect throughout the year, check out Wollongong Climate.