Last updated: February 25, 2025
In Katoomba, Australia, December presents a dynamic weather landscape characterized by a maximum temperature that can soar up to 38°C (100°F), while the average settles around 18°C (65°F) and the minimum dips to 7°C (44°F). This month experiences considerable precipitation, with a total of 133 mm (5.2 in) spread over 16 days, contributing to a humidity level of 68% that adds a distinct chill to the warmer days. Embrace the contrasting weather patterns as Katoomba transitions from warm afternoons to cooler evenings, making it a unique time for visitors and locals alike.
In Katoomba, Australia, December ushers in the warm embrace of summer, with temperatures reflecting a significant rise from the cooler months. The average temperature hovers around 18°C (65°F), while daily highs can reach up to 38°C (100°F), offering a stark contrast to the chilly conditions of the preceding months. Notably, the minimum temperature sits at 7°C (44°F), making December the beginning of a trend where lows gradually increase compared to winter's frigid nights. This shift towards warmer weather not only invites locals and visitors to enjoy the outdoors but also signals a vibrant change in both flora and fauna in this picturesque region.
December in Katoomba, Australia, is characterized by a substantial precipitation total of 133 mm (5.2 in), mirrored by the 16 days of rainfall throughout the month. This figure is slightly lower than the previous month of November, which received a notable 134 mm (5.3 in) over the same number of rainy days. The trend shows a steady increase in rainfall from the dry months of April through July, culminating in a peak during the late summer months from January to March. As December transitions into the wetter season, residents and visitors alike can expect an invigorating atmosphere, enhanced by the lush foliage that thrives in these conditions. The consistent rainfall during this period contributes to Katoomba’s vibrant ecosystems, making it a captivating destination for nature enthusiasts.
In December, Katoomba experiences a humidity level of 68%, which marks a slight increase from the drier months of October and November, where humidity dipped to 55% and 57%, respectively. This uptick aligns with the transition into the warmer summer months, following a steady rise in humidity from the cooler autumn period, where figures peaked at 75% in April. Reflecting the overall trend for the year, December's humidity remains comfortably moderate, suggesting that while Katoomba can expect some moisture, it is still far from the more humid heights seen in the early months of the year, such as March's 72%. Thus, December offers a balanced climate, perfect for outdoor exploration and enjoyment of the lush surroundings.
In December, Katoomba experiences its highest UV Index of the year at 15, placing it firmly in the extreme exposure category with a rapid burn time of just 10 minutes. This trend follows the pattern established in January and February, where similarly high UV levels threaten safe sun exposure, reminding residents and visitors of the importance of sun protection during these peak months. As the year progresses into April, the UV Index drops to 8, indicating a shift to very high exposure, yet it never quite relents, frequently hovering between high and extreme until the summer months return. For more detailed insights on sun protection, check out the Katoomba UV Index to stay informed.
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In Katoomba, Australia, December heralds a brilliant surge of sunlight, boasting an impressive 326 hours of sunshine that outshines all other months of the year. This trend of increasing daylight starts as early as October, where the hours gradually rise from 298 hours, culminating in the festive spirit of December. The gradual decline in sunshine hours from the previous winter months is contrasted by the vibrant increase in late spring and early summer. As the year draws to a close, Katoomba transforms into a sunlit haven, inviting locals and visitors alike to bask in the warmth of the season and embrace the joyous holiday festivities that thrive under the golden skies.
As December rolls around in Katoomba, Australia, the likelihood of sunny weather presents a mild challenge for sun-seekers, with a 34% chance of sunshine. This figure falls below the peak of 63% in April and the more favorable conditions of late winter and early spring, such as 60% in August and 57% in September. The month offers a noticeable dip from November's significantly lower 18%, but it hovers above the cooler winter months of June and July, with 36% and 46% likelihoods, respectively. Though December may not boast the brightest days, it does signify a gradual shift towards more cheerful weather as the year winds down and summer approaches.
In Katoomba, Australia, the daylight duration undergoes a captivating transformation throughout the year. Starting with 14 hours in January, the days gradually shorten, reaching their peak at 9 hours in June—a testament to the winter solstice. This seasonal ebb and flow then reignites, with daylight climbing back to 14 hours by December. February and November offer a delightful balance, each showcasing 13 hours of daylight. Meanwhile, the gentle decay in daylight from 12 hours in March to 10 hours in May captures the essence of autumn's transition. Overall, this rhythmic cycle of light and dark reveals the enchanting interplay of nature’s seasons in Katoomba.
As December arrives in Katoomba, Australia, the wind begins to whisper softer melodies, with average speeds dropping to 2.1 m/s (5 mph). This trend reflects a seasonal shift, as the brisk winds of earlier months peak in July at 3.6 m/s (8 mph) before gradually easing. The gentle breezes in December provide a serene backdrop to the holiday festivities, contrasting with the more energetic gusts experienced in the middle of the year. While June and July had their fair share of lively winds, the calmness of December invites residents and visitors alike to embrace the tranquil atmosphere of the Blue Mountains, making it an idyllic season for leisurely strolls and cozy gatherings.
The weather in Katoomba 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 Katoomba and find detailed weather information for every month.
In December, temperatures range from a minimum of 7°C (44°F) to a maximum of 38°C (100°F), with an average temperature of 18°C (65°F). The month experiences a higher level of precipitation, totaling 133 mm (5.2 in) over 16 days, alongside a humidity level of 68%. In contrast, January sees slightly warmer temperatures, with an average of 20°C (69°F) and a maximum of 39°C (102°F), while maintaining the same minimum of 7°C (45°F). Precipitation decreases to 87 mm (3.4 in) over 13 days, and the humidity drops to 65%. As such, January tends to be drier and a bit warmer compared to December. For more detailed insights about January weather, you can visit Katoomba weather in January.
In comparing the weather between December and February, we observe that both months exhibit warm temperatures typical of a summer climate. December experiences a minimum of 7°C (44°F) and an average of 18°C (65°F), while February has slightly cooler minimums at 6°C (42°F) and a marginally higher average of 19°C (66°F). Both months see similar maximum temperatures, with December peaking at 38°C (100°F) and February just under it at 37°C (100°F).
Precipitation levels are notably different; December receives about 133 mm (5.2 in) over approximately 16 days, whereas February has higher rainfall of 165 mm (6.5 in) across the same number of days. Humidity remains relatively constant, with December at 68% and February slightly higher at 69%. For more detailed insights into February's climate, you can explore Katoomba weather in February.
December and March exhibit notable differences in weather patterns. In December, temperatures range from a minimum of 7°C (44°F) to a maximum of 38°C (100°F), with an average of 18°C (65°F). This month experiences around 133 mm (5.2 in) of precipitation over 16 days, accompanied by a humidity level of 68%. In contrast, March features cooler temperatures, with a minimum of 3°C (38°F) and a maximum of 33°C (91°F), averaging 17°C (62°F). Precipitation is higher in March, totaling 221 mm (8.7 in) across 18 days, and humidity slightly increases to 72%. For a deeper insight into the weather during this month, you can check Katoomba weather in March.
In comparing the weather of December and April, December typically experiences warmer temperatures, with a minimum of 7°C (44°F) and a maximum reaching up to 38°C (100°F), while April sees cooler averages, with temperatures ranging from a minimum of 1°C (33°F) to a maximum of 29°C (84°F). Precipitation is also significantly higher in December, averaging 133 mm (5.2 in) over 16 days compared to April’s milder 31 mm (1.2 in) over just 7 days. Additionally, humidity levels remain slightly higher in April at 75%, compared to December's 68%. For a more detailed look at seasonal conditions, check out Katoomba weather in April.
When comparing the weather in December and May, notable differences emerge. December boasts a much warmer climate, with temperatures ranging from a minimum of 7°C (44°F) to a scorching maximum of 38°C (100°F) and an average of 18°C (65°F). It also experiences substantial precipitation, accumulating 133 mm (5.2 in) over about 16 days, resulting in a humidity level of 68%. In contrast, May features cooler temperatures, with a minimum of -2°C (29°F), an average of 10°C (50°F), and a maximum of 22°C (73°F). It has significantly less rainfall, totaling just 35 mm (1.4 in) across 6 days, and slightly higher humidity at 74%. For more details on May weather, check out Katoomba weather in May.
December and June in Katoomba present contrasting weather patterns. December boasts significantly warmer temperatures, ranging from a minimum of 7°C (44°F) to a maximum of 38°C (100°F), with an average of 18°C (65°F). In contrast, June experiences cooler temperatures, with a minimum of -2°C (29°F) and a maximum of 20°C (68°F), averaging only 7°C (45°F). Rainfall is more abundant in December, with 133 mm (5.2 in) over 16 days, compared to June's milder 31 mm (1.2 in) over just 6 days. Interestingly, humidity levels are slightly higher in June at 72%, compared to December's 68%. For a detailed look at conditions during this cooler month, check out Katoomba weather in June.
When comparing the weather between December and July, there is a stark contrast in temperature and precipitation. December boasts a warm range, with minimums around 7°C (44°F) and maximums soaring to 38°C (100°F), along with significant rainfall totaling 133 mm (5.2 in) across 16 days. In contrast, July experiences much cooler temperatures, with a minimum of -3°C (27°F) and maximums only reaching 19°C (67°F). Additionally, July is much drier, receiving only 35 mm (1.4 in) of precipitation over just 6 days. Humidity remains consistent at 68% in both months, but the overall experience of weather differs dramatically, making December feel hot and wet while July is cool and relatively dry. For more detailed information about the July climate, visit Katoomba weather in July.
December weather is characterized by significantly warmer temperatures, with a minimum of 7°C (44°F) and a high reaching up to 38°C (100°F), whereas August experiences much cooler conditions, with temperatures ranging from a low of -3°C (28°F) to a comfortable maximum of 21°C (69°F). Additionally, December sees more precipitation, averaging 133 mm (5.2 in) over 16 days, compared to August's milder 54 mm (2.1 in) over just 7 days. Despite the higher temperatures in December, humidity levels remain relatively similar, at 68%, compared to 67% in August. For a detailed look at August weather, check out Katoomba weather in August.
When comparing the weather in December and September, it’s clear that December is significantly warmer, with average temperatures reaching 18°C (65°F) and a maximum of 38°C (100°F), while September sees much cooler temperatures, averaging just 11°C (51°F) with a maximum of 29°C (84°F). Additionally, December experiences more precipitation, totaling 133 mm (5.2 inches) over about 16 days, compared to September's 49 mm (1.9 inches) over 7 days. Humidity levels are also slightly higher in December at 68%, compared to 63% in September. For those interested in a deeper dive into the specifics of September weather, check out Katoomba weather in September.
When comparing the weather in December to that of October, it's evident that December tends to be much warmer and wetter. December's temperatures range from a minimum of 7°C (44°F) to a scorching maximum of 38°C (100°F), significantly higher than October's range of 1°C (34°F) to 29°C (84°F). Additionally, December experiences more precipitation, with 133 mm (5.2 in) over 16 days, compared to October's 91 mm (3.6 in) over 13 days. The humidity also rises in December to 68%, making it feel more tropical than the cooler and drier conditions of October, which has a humidity level of 55%. For more detailed information on October's weather, you can visit Katoomba weather in October.
In comparison to November, December experiences slightly higher temperatures, with a minimum of 7°C (44°F) and an average of 18°C (65°F), compared to November's minimum of 3°C (37°F) and average of 16°C (60°F). The maximum temperatures also rise, reaching up to 38°C (100°F) in December, compared to November's peak of 34°C (94°F). While December sees a marginally lower total precipitation of 133 mm (5.2 in) across 16 days, November has a similar total of 134 mm (5.3 in) but over fewer days of rain, totaling 13 days. Additionally, humidity is notably higher in December at 68%, compared to November's 57%. For more details, check out Katoomba weather in November.
December in Katoomba offers a vibrant contrast to the cooler months, with temperatures that can soar to a maximum of 38°C (100°F) while still maintaining a comfortable average of 18°C (65°F). This month marks a transition into summer, characterized by increased humidity (68%) and a notable uptick in rainfall, with 133 mm (5.2 in) spread over 16 days of precipitation. Visitors can expect lush greenery and a distinctly refreshing atmosphere, making December a unique time to experience the beauty of Katoomba. For an in-depth look at how Katoomba's climate varies throughout the year, check out Katoomba Climate.