December Weather in Mallacoota, Australia

Last updated: February 26, 2025

December in Mallacoota, Australia showcases a vibrant weather profile marked by a maximum temperature reaching up to 36°C (96°F), providing a warm backdrop for outdoor activities. With an average temperature of 18°C (65°F) and a minimum of 9°C (48°F), the days offer warmth while the nights remain pleasantly cool. Rainfall contributes to the landscape, with a total of 94 mm (3.7 in) spread over 9 days, enhancing the region’s natural beauty. Humidity levels hover around 63%, adding a touch of balmy coastal air to the mix, making December an inviting time to experience the charm of Mallacoota.

December Temperature in Mallacoota

December in Mallacoota, Australia, heralds the height of summer, bringing a delightful mix of warmth and vitality to the coastal region. With minimum temperatures around 9°C (48°F) and average highs reaching a sizzling 36°C (96°F), it's a time when days are long, and the sun shines brightly. The average temperature settles at a pleasant 18°C (65°F), creating ideal conditions for beachgoers and outdoor enthusiasts alike. As the year wraps up, December's warmth marks a notable trend of increasing temperatures compared to the cooler months before it, setting the stage for vibrant holiday activities under the Australian sun. Whether it's a lazy day by the water or an adventurous hike through the stunning landscapes, December's temperatures provide the perfect backdrop for unforgettable summer experiences.

December Weather in Mallacoota: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Mallacoota, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec686766615753525255586164
Data source: Temperature data for Mallacoota generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Mallacoota

In December, Mallacoota experiences a significant shift as the year draws to a close, with precipitation totaling 94 mm (3.7 in) over 9 days of rain. This figure continues the upward trend set in November, which saw the highest monthly rainfall of the year at 100 mm (4.0 in). Notably, December's precipitation is among the highest recorded, contributing to a wetter end to the year. As summer approaches, this seasonal pattern suggests a moist climate, with December's rainfall slightly tapering from November's peak yet remaining substantial. With the lush environment spurred by this moisture, the area showcases its natural beauty, making it a vibrant destination during the holiday season.

December Precipitation Trends in Mallacoota

The chart displays monthly precipitation patterns in Mallacoota, with values for each month alongside December's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec5977703187644768397910094
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Mallacoota

In Mallacoota, Australia, December's humidity levels settle at 63%, marking a significant drop from the peak of 83% in July. This trend reflects the region's seasonal humidity pattern, with increasing moisture levels beginning in the warm months, peaking in mid-winter, and then gradually decreasing as the year winds down. As summer approaches, December’s balmy atmosphere offers a comfortable humidity that invites outdoor activities while hinting at the rising temperatures ahead. The shift from the higher humidity of the previous months makes December a pleasant transitional period, balancing refreshing coastal breezes with just the right amount of moisture in the air.

December Average Humidity in Mallacoota

This chart illustrates the average monthly humidity levels in Mallacoota, with December's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how December's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec62%69%73%78%81%81%83%78%72%63%63%63%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Mallacoota

In December, Mallacoota experiences a notably high UV Index of 13, categorized as extreme, with a burn time of just 10 minutes. This reflects a trend seen throughout the Australian summer months, where January to November consistently feature extreme or very high UV levels, leading to a swift onset of sunburn. Interestingly, as we transition into the cooler months starting in April, the UV Index drops significantly, indicating a shift from extreme conditions to moderate and high categories. It’s clear that visitors and locals alike should remain vigilant during December, ensuring they take proper sun safety precautions to protect themselves from harmful UV exposure. For more information on the seasonal UV trends, visit Mallacoota UV Index.

Maximum UV Index Levels in Mallacoota for December

The chart shows the monthly maximum UV Index (UVI) for Mallacoota in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec14121174335791113
Data source: Mallacoota December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

December Sunshine in Mallacoota

In December, Mallacoota basks in a luxurious 338 hours of sunshine, marking the peak of its radiant summer. This significant increase in daylight compared to the previous months underscores a delightful trend, as the hours of sunshine consistently enrich the coastal landscape. Following the warm autumn months of November, with 316 hours, the sunlight continues to grow, creating a vibrant tapestry of colors across the region. As the year winds down, December not only embraces the longest days, but it also invites locals and visitors alike to indulge in outdoor adventures, from serene beachdays to exploring lush nature trails, all under the stunning Australian sun.

Monthly Sunshine Duration in Mallacoota: December Highlighted

The December sunshine duration represents the total number of hours Mallacoota experiences direct sunlight during the month of December, excluding cloudy or obstructed periods. This chart compares the sunshine duration of December with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec265h286h287h257h232h217h233h248h278h300h316h338h
Data source: Mallacoota December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Mallacoota During December

In Mallacoota, Australia, December offers a 41% chance of sunny weather, making it a pleasant time to enjoy the outdoors. Compared to the preceding months, where November sees a dip to 24%, December marks a slight rebound in sunlit days. This positive trend continues from April, which boasts a 55% chance, followed by steady figures in both June and July at 42% and 50% respectively. While the sunshine percentage is modest in December compared to the peak summer months, it stands out as a favorable option for travelers seeking a break from the rainier spring months. Overall, December's likelihood of sunshine suggests a promising close to the year, inviting visitors to experience the natural beauty of this stunning coastal region.

Percentage of Sunny Days in December in Mallacoota

The chart illustrates the percentage of sunny days in Mallacoota throughout the year, with December highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Mallacoota experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec40%35%32%55%50%42%50%50%53%39%24%41%
Data source: Mallacoota December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Mallacoota in December

In Mallacoota, Australia, December shines brightly with an impressive 14 hours of daylight, mirroring the long days of November. This summer month marks the peak of sunlight, transitioning seamlessly from the shorter days of autumn, where daylight begins to dwindle in April and May. As we approach winter in June and July, daylight minimizes to 9 hours, providing a stark contrast to the summer glow. However, as spring arrives in August, daylight inches back up, gently increasing through September to November. Thus, December encapsulates the cyclical dance of daylight across the seasons, highlighting the vibrant warmth of summer in this coastal haven.

Average Daylight Hours in Mallacoota for December

The chart illustrates the variation in daylight duration in Mallacoota throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec14h 24m13h 28m12h 17m11h 5m10h 5m9h 35m9h 50m10h 42m11h 50m13h 3m14h 7m14h 41m
Data source: Mallacoota daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Mallacoota

December in Mallacoota ushers in a gentle shift in the wind, with average speeds tapering to 4.5 m/s (10 mph). As the year draws to a close, this month's breezes are reminiscent of the calmer patterns observed in the cooler months, particularly from July through October, which showcase a gradual decline from their early season highs. Notably, December's winds are slightly stronger than those in July and June, suggesting a soothing transition into the summer heat rather than a fierce embrace of it. With a consistent pattern observed throughout the year, December maintains that invigorating Australian coastal charm, inviting locals and visitors alike to revel in the temperate maritime air as they celebrate the holiday season.

Average December Wind Speed in Mallacoota

The chart displays monthly wind speed patterns in Mallacoota, with values for each month shown alongside December's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how December's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec5.15.35.54.24.54.33.94.75.05.14.74.5 m/s
Data source: Mallacoota December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Mallacoota Compares to Other Months

The weather in Mallacoota 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 Mallacoota and find detailed weather information for every month.

In December, temperatures in Mallacoota can range from a low of 9°C (48°F) to a high of 36°C (96°F), with an average of about 18°C (65°F). This month experiences approximately 94 mm (3.7 in) of rainfall spread over 9 days, contributing to a humidity level of around 63%. In contrast, January offers slightly warmer conditions, with minimum temperatures at 12°C (54°F), an average of 20°C (68°F), and a maximum of 35°C (95°F). The precipitation decreases to 59 mm (2.3 in) over 7 days, resulting in a comparable humidity of 62%. For more detailed insights, you can check the Mallacoota weather in January.

When comparing the weather in December and February, we can see some notable differences. In December, temperatures range from a minimum of 9°C (48°F) to a maximum of 36°C (96°F), with an average of 18°C (65°F). This month experiences more precipitation, with a total of 94 mm (3.7 in) spread over 9 days and an average humidity of 63%. In contrast, February has slightly higher minimum and average temperatures, with lows of 11°C (53°F) and an average of 19°C (67°F). The maximum temperature is a bit lower at 35°C (95°F), and it sees less precipitation, amounting to 77 mm (3.0 in), also over 9 days, but with a higher humidity level of 69%. Overall, February tends to be a bit warmer and more humid, while December is wetter. For more detailed information, you can refer to Mallacoota weather in February.

In December, the weather features warmer temperatures, with a minimum of 9°C (48°F) and a maximum reaching up to 36°C (96°F), contributing to an average of 18°C (65°F). This month experiences about 94 mm (3.7 in) of precipitation over 9 days, along with a moderate humidity level of 63%. In contrast, March presents slightly cooler temperatures, with a minimum of 10°C (51°F) and a maximum of 32°C (90°F), averaging around 19°C (66°F). The precipitation decreases to 70 mm (2.7 in) over 10 days, and humidity rises to 73%. You can find more details about this month in the area at Mallacoota weather in March.

When comparing the weather in December and April, December tends to be warmer, with average temperatures reaching 18°C (65°F) and maximums soaring up to 36°C (96°F). In contrast, April experiences slightly cooler temperatures, averaging 16°C (62°F) and peaking at 33°C (92°F). Precipitation is more prevalent in December, with 94 mm (3.7 in) over 9 days, while April sees significantly less rainfall at 31 mm (1.2 in) across 7 days. Additionally, humidity levels in April rise to 78%, compared to December's more moderate 63%. For a closer look at April weather specifics, visit Mallacoota weather in April.

December weather is characterized by higher temperatures, ranging from a minimum of 9°C (48°F) to a maximum of 36°C (96°F), with an average of 18°C (65°F). It also sees more precipitation, with about 94 mm (3.7 in) falling over 9 days and a humidity level of 63%. In contrast, May experiences cooler temperatures, with a minimum of 7°C (45°F), an average of 14°C (57°F), and a maximum of 25°C (77°F). Although May has slightly less precipitation at 87 mm (3.4 in) over 7 days, the humidity is notably higher at 81%. For more details on May weather, you can visit Mallacoota weather in May.

In December, the weather is significantly warmer, with temperatures ranging from a minimum of 9°C (48°F) to a maximum of 36°C (96°F) and an average of 18°C (65°F). This month also receives a moderate amount of precipitation, totaling 94 mm (3.7 in) across about 9 days, and humidity levels are relatively comfortable at 63%. In contrast, June experiences much cooler conditions, with temperatures ranging from a minimum of 5°C (41°F) to a maximum of 19°C (67°F), averaging only 11°C (53°F). June also sees higher humidity at 81% and a total precipitation of 64 mm (2.5 in) over approximately 10 days. For more details on June weather, visit Mallacoota weather in June.

When comparing the weather in December and July, we see notable differences in temperature and humidity levels. December boasts a broader temperature range, with minimums around 9°C (48°F) and maximums reaching as high as 36°C (96°F), creating a warm and often muggy climate, reflected in its average humidity of 63%. In contrast, July experiences cooler conditions, with minimum temperatures dropping to 4°C (40°F) and maximums peaking at just 20°C (68°F). This cooler month also features higher humidity levels at 83%, contributing to a more crisp and moist atmosphere despite receiving less overall precipitation—47 mm (1.8 in) compared to December's 94 mm (3.7 in). For those interested in specifics about weather trends during this time, details can be found at Mallacoota weather in July.

December typically offers much warmer weather compared to August, with average temperatures ranging from a minimum of 9°C (48°F) to a maximum of 36°C (96°F). In contrast, August sees cooler temperatures, with average highs reaching only 21°C (70°F). While both months experience precipitation on approximately nine days, December has a higher total rainfall of 94 mm (3.7 in) compared to August's 68 mm (2.7 in). Additionally, humidity levels in December are lower at 63%, whereas August is more humid at 78%. For more detailed information, you can check Mallacoota weather in August.

When comparing the weather of December to September, we see notable differences in temperature and precipitation patterns. In December, temperatures range from a minimum of 9°C (48°F) to a maximum of 36°C (96°F), with an average of 18°C (65°F), making it significantly warmer than September, which has a minimum of 6°C (42°F), an average of 13°C (55°F), and a maximum of 31°C (88°F). Additionally, December experiences higher precipitation levels, with 94 mm (3.7 in) over 9 days, compared to September’s 39 mm (1.5 in), also over 9 days. Humidity is slightly lower in December at 63%, while September holds a higher humidity level of 72%. For more specific details about the weather in September, you can refer to this link: Mallacoota weather in September.

In December, the weather is generally warmer than in October, with average temperatures reaching up to 18°C (65°F) compared to October's average of 15°C (59°F). December can also experience more extreme heat, as maximum temperatures can soar to 36°C (96°F), while in October, they peak at a more moderate 29°C (85°F). Precipitation levels are slightly higher in December, with about 94 mm (3.7 in) over 9 days, compared to October's 79 mm (3.1 in) spread across 13 days. Humidity remains consistent for both months at 63%. For a more detailed look at October conditions, you can visit Mallacoota weather in October.

When comparing the weather in November and December, December tends to be warmer with average temperatures reaching 18°C (65°F), compared to November's 16°C (61°F). The maximum temperature in December can soar up to 36°C (96°F), while in November, it peaks at 31°C (89°F). Precipitation levels are slightly lower in December, with 94 mm (3.7 in) over 9 days, compared to 100 mm (4.0 in) across 11 days in November. Despite the increased warmth, humidity remains consistent at 63% for both months. For more detailed insights into November's weather, you can visit Mallacoota weather in November.

Compare Mallacoota's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Mallacoota

As December unfolds in Mallacoota, the weather takes a remarkable turn, offering a vibrant contrast to the cooler months. The warm temperatures invite beachgoers and nature lovers alike, making it a perfect time to explore the stunning coastline. Despite the higher humidity levels, the experience is often balanced by refreshing sea breezes. While occasional rainfall can be expected, with about nine days of precipitation throughout the month, this does little to deter the festive spirit, as the region thrives under the summer sun. For those curious about the seasonal transitions, more insights can be found at Mallacoota Climate.