December Weather in Mount Gambier, Australia

Last updated: February 25, 2025

In December, Mount Gambier experiences a captivating range of weather conditions that showcase the region’s diverse climate. With maximum temperatures soaring up to 45°C (113°F), the summer heat is balanced by an average of 16°C (62°F) and a refreshing minimum of 2°C (37°F) during the cooler nights. The month sees 37 mm (1.5 in) of rainfall spread over approximately 6 days, contributing to a humidity level of around 50%. This unique blend not only highlights the variability of Mount Gambier's weather but also offers an inviting atmosphere for both locals and visitors alike.

December Temperature in Mount Gambier

In Mount Gambier, Australia, December heralds the arrival of summer, bringing a noticeable spike in temperatures. The month starts with a minimum of 2°C (37°F) and peaks at a sizzling 45°C (113°F), showcasing a remarkable range that characterizes this time of year. With an average temperature of 16°C (62°F), the warmth is a striking contrast to the cooler months preceding it, notably March, which averages a mere 17°C (63°F). This increase in heat signals a trend of escalating summer temperatures, as December often serves as a precursor to the hottest months ahead. Travelers can expect long, sun-soaked days, perfect for outdoor activities, but should be prepared for the intense heat during this vibrant season.

December Weather in Mount Gambier: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Mount Gambier, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec666463585449495052555962
Data source: Temperature data for Mount Gambier 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 Mount Gambier

In December, Mount Gambier experiences a shift in precipitation patterns as the rainfall decreases to 37 mm (1.5 in) over 6 days, marking a moderate close to spring. This month’s rainfall is a notable reduction compared to the heavier downpours of July and August, which are the wettest months in the region, averaging 85 mm (3.3 in) and 89 mm (3.5 in) respectively. As summer approaches, December often signals the transition to drier conditions, but past trends show that this fleeting rainfall helps maintain the lush greenery that characterizes the area. While December's precipitation is less frequent, the rainfall still plays a crucial role in supporting the environment, ensuring that the vibrant landscape remains lively as the hotter months begin.

December Precipitation Trends in Mount Gambier

The chart displays monthly precipitation patterns in Mount Gambier, 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.
JanFebMarAprMayJunJulAugSepOctNovDec262323367556858976625237
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Mount Gambier

In Mount Gambier, Australia, the humidity trend throughout the year showcases a fascinating transition, culminating in December with a manageable humidity level of 50%. This month marks a notable decrease from the peak of 80% experienced in July, indicating a shift from the colder, more humid winter season. As the year progresses from January's 45% to May's 75%, the data illustrates a gradual increase that peaks mid-year, revealing the impact of the cooler months. However, December signals a return to more comfortable levels, bridging the gap between the flourishing humidity of spring and the drier summer months ahead, setting the stage for a refreshing conclusion to the year.

December Average Humidity in Mount Gambier

This chart illustrates the average monthly humidity levels in Mount Gambier, 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.
JanFebMarAprMayJunJulAugSepOctNovDec45%49%57%67%75%79%80%75%69%59%56%50%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Mount Gambier

As December rolls into Mount Gambier, Australia, the region experiences an extreme UV Index of 14, marking a notable increase from the previous months. This peak in UV radiation translates to a minimal burn time of just 10 minutes, emphasizing the need for sun protection during outdoor activities. Following the highest points in January through November, December solidifies a trend of heightened UV exposure during the summer months. With the burn time consistently shortening in the warmer part of the year, it's clear that residents and visitors alike should remain vigilant about sun safety. For more detailed information on UV levels throughout the year, visit Mount Gambier UV Index.

Maximum UV Index Levels in Mount Gambier for December

The chart shows the monthly maximum UV Index (UVI) for Mount Gambier 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.
JanFebMarAprMayJunJulAugSepOctNovDec13121174334791114
Data source: Mount Gambier 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 Mount Gambier

In December, Mount Gambier basks in an impressive 346 hours of sunshine, marking it as the sunniest month of the year. This vibrant surge in sunlight beautifully contrasts the cooler months, such as June and July, when sunshine dips to around 198 hours and 217 hours, respectively. As the year progresses, there is a noticeable increase in sunlight, peaking from November's 308 hours to December's dazzling total. This upward trend not only enhances the region's picturesque landscapes but also invites outdoor adventures and festivities, making December a truly delightful time to experience the warmth and beauty of Mount Gambier's summer days.

Monthly Sunshine Duration in Mount Gambier: December Highlighted

The December sunshine duration represents the total number of hours Mount Gambier 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.
JanFebMarAprMayJunJulAugSepOctNovDec288h290h289h229h203h198h217h237h255h275h308h346h
Data source: Mount Gambier December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Mount Gambier During December

In Mount Gambier, Australia, the likelihood of enjoying sunny weather experiences a noteworthy spike in December, peaking at 52%—the highest chance of sunshine in the year. This shift marks a significant increase compared to the preceding months, where averages hover around the 30s. As summer approaches, December stands out, promising more radiant days perfect for outdoor activities and exploration. This trend reflects a seasonal transition, with the city trading in its cooler, cloudier winter months for brighter, sunnier days, inviting both locals and visitors to bask in the warm weather as the year wraps up.

Percentage of Sunny Days in December in Mount Gambier

The chart illustrates the percentage of sunny days in Mount Gambier 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 Mount Gambier experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec40%44%42%41%36%34%28%38%34%35%34%52%
Data source: Mount Gambier December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Mount Gambier in December

In Mount Gambier, Australia, the daylight duration beautifully ebbs and flows throughout the year, reflecting the changing seasons. December stands out with an inviting 14 hours of daylight, a peak that mirrors the brightness of January and November. As summer begins, the days are long and vibrant, providing ample opportunity for outdoor activities. As the months progress into February and March, daylight gradually recedes to 13 and then 12 hours, signaling the shift toward autumn. This rhythmic pattern continues, with daylight shrinking to a low of 9 hours during the winter months of June and July, before gradually increasing again in spring. The return of longer days in August and the renewed brightness of October usher in the final stretch toward the year's peak daylight months, creating a dynamic and engaging light cycle unique to this region.

Average Daylight Hours in Mount Gambier for December

The chart illustrates the variation in daylight duration in Mount Gambier throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec14h 25m13h 29m12h 17m11h 4m10h 4m9h 34m9h 49m10h 41m11h 50m13h 3m14h 8m14h 42m
Data source: Mount Gambier daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Mount Gambier

As December rolls into Mount Gambier, a gentle breeze adds a touch of freshness to the summer heat, with average wind speeds reaching 4.1 m/s (9 mph). This signifies a slight decrease from the more robust gusts experienced in the winter months, particularly in July and September, where winds peaked at 4.9 m/s (11 mph). Interestingly, the transition from spring to summer showcases a pattern of variability as winds moderate, settling down after the brisk winter. Despite this dip, December maintains a refreshingly breezy climate, continuing the trend seen throughout the year where the month is consistently well within the mild wind spectrum. So, whether you're embarking on a beach day or a leisurely stroll through nature, the December winds in Mount Gambier invite you to embrace the invigorating outdoor spirit.

Average December Wind Speed in Mount Gambier

The chart displays monthly wind speed patterns in Mount Gambier, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.23.93.43.64.34.04.94.74.84.04.04.1 m/s
Data source: Mount Gambier December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Mount Gambier Compares to Other Months

The weather in Mount Gambier 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 Mount Gambier and find detailed weather information for every month.

December and January show notable differences in weather, particularly in temperature and precipitation. December experiences a wider temperature range, with a minimum of 2°C (37°F) and a maximum of 45°C (113°F), resulting in an average of 16°C (62°F). In contrast, January has slightly milder temperatures, with a minimum of 7°C (45°F) and a maximum of 44°C (111°F), yielding an average of 19°C (66°F). While December sees more rainfall with 37 mm (1.5 in) over 6 days, January has less precipitation at 26 mm (1.0 in) over just 3 days. Additionally, humidity is a bit lower in January at 45%, compared to December's 50%. For more detailed insights on January weather, visit Mount Gambier weather in January.

December and February exhibit notable similarities and differences in weather patterns. December experiences a broader temperature range, with minimums dipping to 2°C (37°F) and maximums soaring up to 45°C (113°F), showcasing a dynamic climate. In contrast, February features slightly milder temperatures, with minimums of 5°C (41°F) and maximums reaching 39°C (103°F). Precipitation is more frequent in December, totaling 37 mm (1.5 in) over 6 days, compared to the drier February, which sees only 23 mm (0.9 in) over 4 days. Humidity levels remain quite similar, with December at 50% and February slightly lower at 49%. To explore more about February weather specifics, you can check Mount Gambier weather in February.

In comparing December and March weather, December tends to exhibit a wider temperature range with a minimum of 2°C (37°F) and a maximum soaring to 45°C (113°F), resulting in an average of 16°C (62°F). This month also experiences higher precipitation levels at 37 mm (1.5 in) over six days, while maintaining a relative humidity of 50%. In contrast, March has a slightly higher minimum temperature of 3°C (38°F) and a lower maximum of 40°C (105°F), resulting in a similar average of 17°C (63°F). The precipitation in March is notably less at 23 mm (0.9 in), with the same frequency of rainfall over six days, and the humidity increases to 57%. For more details, you can check out Mount Gambier weather in March.

When comparing the weather in December and April, notable differences emerge despite some similarities. In December, temperatures range from a minimum of 2°C (37°F) to a maximum of 45°C (113°F), with an average of 16°C (62°F), highlighting the potential for significantly hot days. The month experiences about 37 mm (1.5 in) of precipitation over 6 days and maintains a humidity level of 50%. In contrast, April features slightly cooler temperatures with a minimum of 2°C (36°F) and a maximum of 33°C (92°F), averaging 15°C (59°F). This month sees an almost equivalent precipitation of 36 mm (1.4 in) but over a greater number of days, totaling 8, which contributes to a higher humidity level of 67%. For more specific insights about weather patterns in April, check out Mount Gambier weather in April.

When comparing the weather in December and May, a few notable differences emerge. December experiences a wider temperature range, with a maximum of 45°C (113°F) and an average of 16°C (62°F), while May's temperatures peak at a more moderate 25°C (77°F) with an average of 12°C (54°F). Additionally, precipitation is more frequent in May, with rain falling on 11 days and totaling 75 mm (2.9 in), compared to December's 37 mm (1.5 in) over just 6 days. The humidity also varies significantly, as May's levels sit at 75%, making it feel much more humid compared to December's 50%. For more detailed information, you can check out the Mount Gambier weather in May.

In December, temperatures can soar significantly, ranging from a chilly 2°C (37°F) at night to a scorching high of 45°C (113°F) during the day, with an average temperature of 16°C (62°F). The month sees relatively low precipitation, averaging 37 mm (1.5 in) over about six rainy days and maintaining a humidity level of 50%. Conversely, June offers a cooler climate with temperatures fluctuating between a minimum of -1°C (30°F) and a maximum of 20°C (68°F), averaging at 10°C (50°F). This month is characterized by higher rainfall, accumulating 56 mm (2.2 in) over approximately 11 days, along with increased humidity levels at 79%. For more detailed insights, visit Mount Gambier weather in June.

In December, the weather is characterized by significantly higher temperatures, with a minimum of 2°C (37°F) and an average of 16°C (62°F), peaking at a scorching 45°C (113°F). Precipitation is relatively low at 37 mm (1.5 in) over just 6 days, accompanied by moderate humidity levels of 50%. In contrast, July experiences a much cooler climate, with temperatures ranging from a minimum of -1°C (30°F) to an average of 10°C (50°F) and a maximum of 18°C (65°F). This month sees more rainfall, totaling 85 mm (3.3 in) across 14 days, and higher humidity levels at 80%. For a closer look at the weather specifics in July, you can visit Mount Gambier weather in July.

When comparing the weather in December and August, significant differences emerge. December boasts a much warmer range of temperatures, with a minimum of 2°C (37°F) and a maximum soaring up to 45°C (113°F), averaging at 16°C (62°F). In contrast, August's temperatures are substantially cooler, with a minimum of 1°C (34°F), a maximum of 22°C (71°F), and an average of just 10°C (50°F). Precipitation levels also diverge; December experiences 37 mm (1.5 in) of rain over 6 days, while August sees a much wetter climate, with 89 mm (3.5 in) of rainfall spread across 16 days. Additionally, August's humidity sits higher at 75%, compared to December's 50%. For a closer look at August conditions, see Mount Gambier weather in August.

Comparing December and September weather reveals significant differences in both temperature and precipitation patterns. In December, the temperature range is notably broader, with minimums around 2°C (37°F) and maximums soaring up to 45°C (113°F), averaging at a comfortable 16°C (62°F). Precipitation is relatively low, totaling 37 mm (1.5 in) over just six days, and humidity hovers around 50%. In contrast, September exhibits cooler temperatures, with a minimum of 0°C (33°F) and a maximum of 28°C (82°F), averaging just 11°C (52°F). This month receives more rainfall, totaling 76 mm (3.0 in) across 13 days, accompanied by higher humidity levels at 69%. For a detailed look at September weather, visit Mount Gambier weather in September.

In December, the weather tends to be hotter with average temperatures reaching 16°C (62°F) and a maximum of 45°C (113°F), compared to October's average of 13°C (55°F) and maximum of 33°C (92°F). While both months have similar minimum temperatures, December experiences less precipitation at 37 mm (1.5 in) over about 6 days, contrasted with October's heavier rainfall of 62 mm (2.4 in) spread over 10 days. Additionally, October has a slightly higher humidity level at 59% compared to December's 50%. For a closer look at October's weather specifics, visit Mount Gambier weather in October.

In December, the weather features a slightly wider temperature range compared to November, with minimum temperatures of 2°C (37°F) and maximums reaching up to 45°C (113°F). This results in an average temperature of 16°C (62°F), which is just a degree higher than November's average of 15°C (59°F). While December experiences lower overall precipitation at 37 mm (1.5 in) over 6 days, November sees more rainfall, totaling 52 mm (2.1 in) over 9 days, contributing to a higher humidity level of 56% compared to December's 50%. For those interested in a deeper dive into the November weather patterns, check out Mount Gambier weather in November.

Compare Mount Gambier's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Mount Gambier

December in Mount Gambier ushers in a vibrant shift as temperatures rise, with the area experiencing warmer days that contrast sharply with the chill of previous months. The average milder weather, alongside only a few days of rainfall, allows for a delightful outdoor experience, making it a perfect time for exploration. The 50% humidity adds a touch of warmth without becoming overwhelming, creating a comfortable atmosphere for both locals and visitors. To fully understand how December fits into the broader climatic picture, check out Mount Gambier Climate for a deeper dive into seasonal patterns.