December Weather in Dunsborough, Australia

Last updated: February 26, 2025

Dunsborough, Australia, in December, offers a delightful summer experience characterized by a maximum temperature of 29°C (84°F) and an average of 19°C (67°F), making it perfect for beach outings and outdoor adventures. Despite the warm days, nights are pleasantly cool with a minimum temperature of 13°C (56°F). This month sees minimal rainfall, with only 13 mm (0.5 in) of precipitation spread across just 2 days, allowing for ample sunshine and outdoor activities. With humidity hovering around 79%, the coastal air keeps the atmosphere refreshing, making Dunsborough an idyllic summer destination.

December Temperature in Dunsborough

In Dunsborough, Australia, December ushers in the warmth of summer with noticeably rising temperatures. With a minimum of 13°C (56°F) and a maximum peaking at 29°C (84°F), this month offers a delightful range for beachgoers and outdoor enthusiasts alike. The average temperature settles at a comfortable 19°C (67°F), slightly up from the preceding months, signaling a trend of increasing warmth as the year progresses. This transition from the mild temperatures of November accentuates Dunsborough’s appeal, as the region basks in longer, sun-soaked days that invite exploration and relaxation. As the year draws to a close, December’s inviting climate perfectly sets the scene for memorable summer adventures.

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

The chart illustrates December temperature patterns in Dunsborough, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec686968666462605959616366
Data source: Temperature data for Dunsborough 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 Dunsborough

In Dunsborough, Australia, December marks a gentle transition as the year winds down, characterized by relatively modest precipitation levels. This month sees an average of 13 mm (0.5 in) of rainfall, spread over just 2 days, making it one of the driest periods of the year. As the summer heat sets in, December’s precipitation is significantly lower than the winter months, which experience a dramatic increase in rainfall, with July peaking at 139 mm (5.5 in) over 19 days. Interestingly, this month stands in stark contrast to May's 83 mm (3.2 in) and June's 124 mm (4.9 in), reinforcing a clear trend where the region's wet season gives way to dry, warm summer conditions. As the festive season approaches, locals and visitors alike can enjoy dry weather, perfect for outdoor activities and celebrations under the sun.

December Precipitation Trends in Dunsborough

The chart displays monthly precipitation patterns in Dunsborough, 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.
JanFebMarAprMayJunJulAugSepOctNovDec73735338312413911655442013
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Dunsborough

December in Dunsborough, Australia, ushers in a refreshing humidity level of 79%, which mirrors the cozy conditions of the preceding January and March. The trend over the year reveals a gradual decline from a peak of 81% in February, hitting its lowest point during the mid-year months of June and July, where humidity levels dipped to around 70%. As the year progresses towards the sweltering summer months, there’s a noticeable uptick in humidity, culminating in the return to 79% in December. This rhythmic fluctuation highlights Dunsborough's moderate, yet pleasantly humid climate, making it a charming destination for beachgoers and nature lovers alike.

December Average Humidity in Dunsborough

This chart illustrates the average monthly humidity levels in Dunsborough, 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.
JanFebMarAprMayJunJulAugSepOctNovDec79%81%79%77%71%71%70%70%72%75%76%79%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Dunsborough

In December, Dunsborough experiences a notable spike in UV intensity, with the UV Index reaching a striking 14, categorizing it as extreme and resulting in a rapid burn time of just 10 minutes. This trend reflects a pattern of elevated UV exposure during the summer months, as indicated by similarly high values in January and February. After a period of moderate levels in the colder months, the environment turns increasingly intense, emphasizing the need for heightened sun protection. August and September offer a brief respite with lower indices, but the subsequent rise in October and November hints at the persistent Australian summer sun. Residents and visitors alike should remain vigilant during this period of heightened UV radiation. For further details on sun safety, please visit the Dunsborough UV Index.

Maximum UV Index Levels in Dunsborough for December

The chart shows the monthly maximum UV Index (UVI) for Dunsborough 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.
JanFebMarAprMayJunJulAugSepOctNovDec141311854458101214
Data source: Dunsborough 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 Dunsborough

December brings an abundance of sunshine to Dunsborough, Australia, with an impressive total of 378 hours of glorious sunlight. This festive month consistently outshines the rest of the year, making it the sunniest time in this picturesque coastal town. Following a steady increase from the year's earlier months, where sunlight hours gradually build from 268 in May to over 300 in the latter half of the year, December's radiance marks a peak that highlights the transition into summer. As the days lengthen, the vibrant energy encapsulated in this warm weather invites both locals and visitors to soak in the sun's embrace, making it the ideal backdrop for holiday celebrations and beach outings. With each sunrise, December truly captures the essence of summer in Dunsborough, promising days filled with light and joy.

Monthly Sunshine Duration in Dunsborough: December Highlighted

The December sunshine duration represents the total number of hours Dunsborough 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.
JanFebMarAprMayJunJulAugSepOctNovDec307h315h315h281h268h253h262h279h289h322h343h378h
Data source: Dunsborough December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Dunsborough During December

In December, Dunsborough, Australia, boasts a promising 72% chance of sunny weather, marking a delightful return to brightness just in time for the summer season. This positivity follows a pattern observed throughout the year, where the chance of sunshine peaks in the warmer months of January (73%) and gradually declines through autumn. As we transition into spring, November enjoys a solid 60% likelihood of sunny days, setting a vibrant backdrop for December. Despite the occasional dips—the lowest being in May and June with 34% and 41% respectively—December stands out as a month where residents and visitors can expect a significant opportunity to bask in the sun before the year concludes.

Percentage of Sunny Days in December in Dunsborough

The chart illustrates the percentage of sunny days in Dunsborough 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 Dunsborough experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec73%66%51%47%34%42%40%51%60%40%60%72%
Data source: Dunsborough December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Dunsborough in December

In Dunsborough, Australia, December marks a vibrant return to longer daylight hours, basking in 14 hours of sunshine—a delightful peak that mirrors the trend seen in January. As the year progresses from the summer months to the cooler winter season, daylight gradually diminishes, reaching its lowest point in June with just 9 hours. Following this dip, an intriguing rebound occurs, as July and August comfortably maintain 10 hours, creating a balance that hints at the lingering warmth of spring. By the time we transition back into September, the daylight duration begins its ascent once more, reaching 11 hours in autumn and steadily increasing until it culminates in November and December. This cyclical dance of daylight not only brings joy to Dunsborough’s beachgoers during the festive season but also emphasizes the region's unique seasonal rhythm.

Average Daylight Hours in Dunsborough for December

The chart illustrates the variation in daylight duration in Dunsborough throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec14h 5m13h 16m12h 15m11h 13m10h 21m9h 56m10h 9m10h 53m11h 52m12h 55m13h 50m14h 19m
Data source: Dunsborough daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Dunsborough

In Dunsborough, Australia, December typically sees an average wind speed of 7.4 m/s (17 mph), marking a slight decrease from the breezy conditions of the preceding months. As the year concludes, the winds remain gentle compared to the invigorating gusts of July, which boasts the highest average at 10.4 m/s (23 mph). Early summer months like January and February experience winds of 7.7 m/s (17 mph) and 8.1 m/s (18 mph) respectively, but by December, the winds soften just a notch, indicating a shift towards more tranquil coastal experiences. Overall, while the winds tend to be variable throughout the year, December's breeze encourages a perfect blend of outdoor activity and relaxation by the stunning beaches of Dunsborough.

Average December Wind Speed in Dunsborough

The chart displays monthly wind speed patterns in Dunsborough, 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.
JanFebMarAprMayJunJulAugSepOctNovDec7.78.15.85.76.77.810.47.76.77.17.07.4 m/s
Data source: Dunsborough December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Dunsborough Compares to Other Months

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

December and January offer relatively mild weather, with only slight variations in temperature and precipitation. In December, temperatures range from a minimum of 13°C (56°F) to a maximum of 29°C (84°F), with an average of 19°C (67°F) and 13 mm of rainfall over two days. In contrast, January sees a slightly warmer minimum of 14°C (57°F) and a lower maximum of 27°C (80°F), with an average temperature of 20°C (68°F) and reduced precipitation of only 7 mm on one day. Humidity remains consistent at 79% in both months, contributing to a tropical feel. For those interested in specific weather details, you can visit this link: Dunsborough weather in January.

In comparing the weather of December and February, December tends to be slightly warmer with average temperatures ranging from a minimum of 13°C (56°F) to a maximum of 29°C (84°F). In contrast, February presents a slightly cooler climate, with average temperatures from a minimum of 15°C (60°F) to a maximum of 26°C (80°F). Precipitation also varies significantly, as December sees only 13 mm (0.5 in) of rain over 2 days, while February experiences increased rainfall of 37 mm (1.5 in) across the same number of days. Humidity remains fairly consistent between the two months, with December at 79% and February at 81%. For a more detailed look at the specifics of February's climate, visit Dunsborough weather in February.

In December, the weather typically features warmer temperatures, with a minimum of 13°C (56°F) and an average of 19°C (67°F), while the maximum can reach up to 29°C (84°F). This month experiences relatively low precipitation, averaging only 13 mm (0.5 in) over just 2 days, alongside a consistent humidity level of 79%.

In contrast, March shows a slight increase in minimum and average temperatures, starting at 14°C (58°F) and averaging 20°C (69°F), but the maximum is a bit cooler at 26°C (79°F). However, March brings significantly more rainfall, totaling 35 mm (1.4 in) over 4 days, while maintaining the same level of humidity at 79%. For more detailed insights, check out Dunsborough weather in March.

When comparing the weather in December and April, both months have a similar average temperature of around 19°C (67°F). However, December experiences slightly warmer highs, reaching up to 29°C (84°F), while April's maximum temperature is 25°C (77°F). In terms of precipitation, December is relatively dry with only 13 mm (0.5 in) over 2 days, whereas April sees a noticeable increase in rainfall, totaling 33 mm (1.3 in) over 5 days. Humidity levels are also comparable, with December at 79% and April slightly lower at 77%. For more detailed information, you can check Dunsborough weather in April.

When comparing the weather in December and May, notable differences emerge. December typically offers warmer temperatures, with a minimum of 13°C and a maximum of 29°C, while May sees a slightly cooler range, from a minimum of 12°C to a maximum of 22°C. Precipitation patterns also vary significantly; December receives just 13 mm of rain over two days, while May experiences a much wetter climate with 83 mm of rain spread over eleven days. Additionally, December boasts higher humidity levels at 79%, compared to May's 71%. For more detailed insights, you can explore Dunsborough weather in May.

The weather in December is generally warmer and drier compared to June. December experiences minimum temperatures of 13°C (56°F) and maximums soaring up to 29°C (84°F), with an average humidity of 79% and only a couple of days of rain, totaling 13 mm. In contrast, June sees cooler temperatures, with minimums dropping to 10°C (50°F) and maximums capped at 21°C (70°F). It also experiences significantly more precipitation, averaging 124 mm over 15 days, and a lower humidity of 71%. For a detailed look at the conditions you can expect in June, check out Dunsborough weather in June.

When comparing the weather in December and July, December offers warmer temperatures, with a minimum of 13°C and an average of 19°C, reaching a maximum of 29°C. The month sees relatively low precipitation, averaging just 13 mm over 2 rainy days and higher humidity at 79%. In contrast, July experiences cooler conditions, with temperatures ranging from a minimum of 12°C to a maximum of 21°C, and significantly more precipitation at 139 mm across 19 days, accompanied by a humidity level of 70%. For a more detailed look at July weather in Dunsborough, you can refer to Dunsborough weather in July.

When comparing December and August weather, December typically offers milder temperatures, with an average of 19°C (67°F) and a maximum of 29°C (84°F), while August remains cooler, averaging only 15°C (59°F) with a maximum temperature of 19°C (67°F). December experiences minimal precipitation, totaling just 13 mm (0.5 in) over 2 days, whereas August sees significantly more rainfall, accumulating 116 mm (4.6 in) over 14 days. Interestingly, while December has higher humidity at 79%, August's humidity is slightly lower at 70%. For more detailed insights, you can check Dunsborough weather in August.

December weather is generally warmer than September, with average temperatures ranging from a minimum of 13°C (56°F) to a maximum of 29°C (84°F), compared to September's cooler range of 10°C (50°F) to 20°C (69°F). Additionally, December experiences significantly lower precipitation, with only 13 mm (0.5 in) over just 2 days, while September sees much wetter conditions with 55 mm (2.2 in) over 11 days. Humidity levels are slightly higher in December at 79%, but September maintains a comfortable 71%. For more detailed insights, you can explore Dunsborough weather in September.

Comparing the weather in December and October reveals notable differences. December tends to be warmer, with average temperatures ranging from a minimum of 13°C (56°F) to a maximum of 29°C (84°F), while October's temperatures are cooler, averaging between 11°C (52°F) and 22°C (72°F). Additionally, December experiences significantly less rainfall, with only 13 mm (0.5 in) over just 2 days, compared to October's 44 mm (1.7 in) across 9 days. Humidity levels are slightly higher in December at 79%, compared to October’s 75%. For more specifics on the October climate, you can check out Dunsborough weather in October.

In comparing the weather of December and November, December tends to be slightly warmer with average temperatures ranging from a minimum of 13°C (56°F) to a maximum of 29°C (84°F), while November's temperatures range from 12°C (54°F) to 24°C (76°F). December also experiences less precipitation, totaling only 13 mm (0.5 in) over 2 days compared to November's 20 mm (0.8 in) over 3 days. Additionally, December has a higher humidity level of 79% compared to November's 76%. For more details on November weather, you can visit Dunsborough weather in November.

Compare Dunsborough's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Dunsborough

As December unfolds in Dunsborough, visitors can expect a delightful shift in the weather, with warmer temperatures making it an ideal time for outdoor activities. The average temperature rises, providing a pleasant contrast to the cooler months, while the minimal precipitation of just a couple of days ensures plenty of sunshine for beach lovers. With humidity levels sitting around 79%, December offers a breezy yet warm coastal experience. This enchanting combination creates an inviting atmosphere, perfect for exploring the beauty of Dunsborough. For a more detailed understanding of what to expect throughout the year, check out the full insights at Dunsborough Climate.