December Weather in Castlemaine, Australia

Last updated: February 26, 2025

December in Castlemaine, Australia presents a diverse climate experience, with temperatures soaring to a maximum of 43°C (110°F) while the average settles at a comfortable 19°C (67°F). Nighttime brings a refreshing drop, with minimum temperatures dipping to 6°C (43°F). This month is characterized by 43 mm (1.7 in) of precipitation spread over 5 days, contributing to a moderate 50% humidity that balances the heat. Embrace the warmth and occasional showers as Castlemaine transforms into a vibrant summer setting.

December Temperature in Castlemaine

In December, Castlemaine, Australia, experiences a vibrant transition into summer, with temperatures showcasing a broad range. The minimum temperature hovers at a comfortable 6°C (43°F), while the average climbs to 19°C (67°F), reflecting the warm days that characterize the season. However, it's the remarkable maximum that truly stands out, peaking at a sweltering 43°C (110°F), reminiscent of the summer's fiery intensity. This month is marked by warmer weather trends, hinting at the end of the cooler months, as Castlemaine prepares for the long, hot summer ahead. As visitors and residents alike enjoy the festive ambiance, the fluctuating temperatures create an ideal backdrop for outdoor activities and celebrations.

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

The chart illustrates December temperature patterns in Castlemaine, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec716865585046454650566166
Data source: Temperature data for Castlemaine generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Castlemaine

In December, Castlemaine experiences a moderate level of precipitation, with 43 mm (1.7 in) falling over approximately 5 days. This month serves as a gentle transition into the wetter summer season, following November’s slightly higher rainfall of 51 mm. Interestingly, while the precipitation total is lower than the peak months like May and August, December’s consistent rain can nurture the lush landscapes typical of the region. As Castlemaine winds down the year, the mix of rain and warmer temperatures creates a vibrant environment, setting the stage for unfolding beauty in the new year.

December Precipitation Trends in Castlemaine

The chart displays monthly precipitation patterns in Castlemaine, 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.
JanFebMarAprMayJunJulAugSepOctNovDec252825476047526042585144
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Castlemaine

In Castlemaine, Australia, December marks a noticeable shift in humidity as it drops to 50%. This change occurs after a series of progressively more humid months from May through July, peaking at 83% in the middle of winter. As the year comes to a close, the humidity begins to decrease, reflecting the transition from the more humid winter months towards the drier summer period. The steady rise in humidity from January, starting at a comfortable 43%, illustrates how the climate evolves throughout the year, reaching its peak mid-year before tapering off in December. This rhythm highlights the region’s unique climate patterns, with winter offering its highest moisture levels before the relative dryness of the summer months sets in.

December Average Humidity in Castlemaine

This chart illustrates the average monthly humidity levels in Castlemaine, 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.
JanFebMarAprMayJunJulAugSepOctNovDec43%49%60%71%79%82%83%79%72%61%59%50%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Castlemaine

In Castlemaine, Australia, December is a peak month for UV exposure, with a UV Index soaring to 15, categorizing it as extreme. This signals a significant increase from previous months, particularly when compared to November's index of 12. As summer begins, residents and visitors alike should be cautious, as the burn time sharply reduces to just 10 minutes. Following a consistent trend of high UV levels from January through March, the intensity momentarily dips in April but quickly escalates again. Understanding these fluctuations is crucial for protecting skin health, especially during the summer months. For more detailed information, visit Castlemaine UV Index.

Maximum UV Index Levels in Castlemaine for December

The chart shows the monthly maximum UV Index (UVI) for Castlemaine 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.
JanFebMarAprMayJunJulAugSepOctNovDec14121174335791215
Data source: Castlemaine 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 Castlemaine

December in Castlemaine, Australia, bursts forth with an impressive 356 hours of sunlight, marking the peak of the year's radiant potential. This month stands out not only as a celebration of summer but also as a striking contrast to the dimmer winter months, where sunlight dips as low as 199 hours in June. As the year progresses from January's 296 hours to February's 310, there's a consistent upward trend leading into December's glorious glow. Notably, the latter half of the year experiences a steady increase in sunshine hours, culminating in this dazzling end-of-year finale. With the lush landscapes of Castlemaine basking in the sun, December truly encapsulates the vibrant spirit of Australian summer.

Monthly Sunshine Duration in Castlemaine: December Highlighted

The December sunshine duration represents the total number of hours Castlemaine 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.
JanFebMarAprMayJunJulAugSepOctNovDec296h310h308h250h218h199h207h229h260h294h310h356h
Data source: Castlemaine December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Castlemaine During December

In Castlemaine, Australia, December stands out as a month of increased optimism for sun seekers, boasting a 70% chance of sunny weather. This notable rise marks a significant departure from the drab dreariness of winter months like June and July, where the likelihood of sunshine plummets to just 27% and 26%, respectively. As the year progresses towards the warmer months, the trend clearly shifts; chances of sunny days gradually increase, peaking in December and heralding the arrival of summer. With an upward trajectory since the gloom of winter, December invites residents and visitors alike to bask in the warmth of longer, brighter days.

Percentage of Sunny Days in December in Castlemaine

The chart illustrates the percentage of sunny days in Castlemaine 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 Castlemaine experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec56%63%51%55%47%27%26%38%41%40%43%70%
Data source: Castlemaine December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Castlemaine in December

In Castlemaine, Australia, daylight duration showcases a captivating seasonal rhythm, peaking at 14 hours in both January and December. As the year progresses, daylight gradually diminishes from a maximum of 14 hours in the early summer months, descending to a low of 9 hours in June and July, the heart of winter. Following this seasonal decline, the days start to lengthen again, providing a steady transition from the winter chill to the warmth of spring. Notably, October and November see a resurgence of daylight, welcoming longer afternoons as daylight stretches back to 14 hours by the year’s end, offering a brilliant backdrop for outdoor activities during the festive season. This cyclical pattern not only reflects the beauty of Castlemaine’s changing seasons but also highlights the rhythmic dance of light throughout the year.

Average Daylight Hours in Castlemaine for December

The chart illustrates the variation in daylight duration in Castlemaine throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec14h 21m13h 26m12h 16m11h 6m10h 8m9h 39m9h 53m10h 44m11h 51m13h 1m14h 4m14h 37m
Data source: Castlemaine daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Castlemaine

In Castlemaine, Australia, December marks a subtle uptick in wind activity, with average wind speeds hovering around 4.0 m/s (9 mph). This refreshing breeze hints at the seasonal transition, as wind speeds have gradually shifted from a low of 3.2 m/s (7 mph) in April to this final push of the year. Notably, the year begins with its strongest winds in January at 4.3 m/s (10 mph), followed by a steady decline until April, where the wind seems to take a breath before gently surging again in the closing months of the year. The warmth of summer embraces the air as speeds stabilize around 4.0 m/s in both December and September, suggesting a playful dance between calm and invigorating breezes as the year wraps up.

Average December Wind Speed in Castlemaine

The chart displays monthly wind speed patterns in Castlemaine, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.33.83.43.23.33.53.83.64.03.83.94.0 m/s
Data source: Castlemaine December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Castlemaine Compares to Other Months

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

December and January in Castlemaine showcase relatively warm temperatures, though January tends to be slightly warmer overall. In December, temperatures range from a minimum of 6°C (43°F) to a maximum of 43°C (110°F), with an average of 19°C (67°F), while January sees a slight increase in the average temperature to 22°C (72°F), with minimum and maximum temperatures of 7°C (45°F) and 43°C (109°F), respectively. Precipitation is also lower in January, with only 25 mm (1.0 in) falling over 4 days compared to December's 43 mm (1.7 in) over 5 days, and the humidity drops from 50% in December to 43% in January. For more detailed information, check out Castlemaine weather in January.

In December, the weather is characterized by a wider temperature range, with minimums of 6°C (43°F) and maximums soaring up to 43°C (110°F), leading to an average temperature of 19°C (67°F). The month sees approximately 43 mm (1.7 in) of precipitation over five days, with humidity levels around 50%. In contrast, February presents a slightly cooler climate, with minimum temperatures at 4°C (40°F) and maximums reaching 42°C (108°F). The average temperature remains comparable at 20°C (68°F), but with reduced precipitation of 28 mm (1.1 in) spread over just three days and humidity dropping to 49%. For more detailed insights into February's weather, you can check out Castlemaine weather in February.

In December, temperatures can reach a maximum of 43°C (110°F) with an average of 19°C (67°F), while March sees slightly cooler temperatures, maxing out at 36°C (97°F) and averaging 18°C (66°F). December experiences more rainfall, with 43 mm (1.7 in) over 5 days, compared to March's 25 mm (1.0 in) across 4 days. Additionally, humidity levels in December are around 50%, while March tends to be a bit more humid at 60%. This makes for a notable difference in the overall feel of the weather between the two months. For more specific details about the weather in March, you can check Castlemaine weather in March.

In December, the weather is characterized by warmer temperatures, with a minimum of 6°C and maximum reaching up to 43°C, making it generally hotter than April. The average temperature sits around 19°C, with relatively low humidity at 50%. Precipitation is moderate, at 43 mm over five days. By contrast, April experiences cooler temperatures, with a minimum of 1°C and a maximum of 32°C, resulting in an average of 14°C. The humidity is higher at 71%, and precipitation slightly increases to 47 mm over the same five days. For more detailed information, you can check Castlemaine weather in April.

December and May exhibit contrasting weather patterns. In December, temperatures can range from a minimum of 6°C (43°F) to a blistering maximum of 43°C (110°F), with an average temperature of 19°C (67°F). The month experiences relatively low precipitation, measuring 43 mm (1.7 in) over about 5 days, and humidity sits at a moderate 50%. In stark contrast, May presents cooler temperatures, with a minimum of 1°C (34°F) and a maximum of 24°C (75°F), averaging around 10°C (51°F). This month is wetter, with 60 mm (2.4 in) of rainfall spread over 8 days and significantly higher humidity at 79%. For more details on the May weather specifics, visit Castlemaine weather in May.

In December, the weather tends to be much warmer, with temperatures ranging from a minimum of 6°C (43°F) to a scorching maximum of 43°C (110°F), and an average of 19°C (67°F). Conversely, June brings chillier conditions, with temperatures dropping to a minimum of -2°C (29°F) and peaking at only 16°C (61°F), averaging around 8°C (46°F). Additionally, June experiences higher humidity at 81%, compared to December’s more comfortable 50%. Rainfall in both months is relatively similar, with December receiving 43 mm over 5 days and June experiencing slightly more at 47 mm across 7 days. For more insights into the specifics of June weather, you can refer to Castlemaine weather in June.

December and July present strikingly different weather patterns. In December, temperatures soar with a minimum of 6°C (43°F) and can peak at a sizzling 43°C (110°F), averaging around 19°C (67°F). This month typically experiences less rainfall, with around 43 mm (1.7 in) falling over about 5 days, coupled with a moderate humidity rate of 50%. In contrast, July brings a chill, with temperatures ranging from a chilly minimum of -3°C (28°F) to a maximum of 16°C (61°F) and an average of 7°C (45°F). This month sees higher precipitation, totaling 52 mm (2.0 in) over 11 days, and a much higher humidity level of 83%. For more specifics about July weather, you can check Castlemaine weather in July.

In comparing the weather between December and August, December boasts much higher temperatures, with a minimum of 6°C (43°F) and an average of 19°C (67°F), reaching up to a scorching 43°C (110°F) at times. In contrast, August experiences much cooler conditions, with temperatures ranging from a minimum of -2°C (28°F) to a maximum of 19°C (67°F) and an average of 8°C (46°F). Additionally, August tends to be wetter, with 60 mm (2.4 in) of precipitation over 10 days compared to December's 43 mm (1.7 in) over just 5 days. The humidity in August is notably higher at 79%, which contrasts with the 50% humidity in December. For more detailed information on August weather, you can visit Castlemaine weather in August.

December weather is characterized by significantly warmer temperatures, ranging from a minimum of 6°C (43°F) to a scorching maximum of 43°C (110°F), with an average of 19°C (67°F). In contrast, September experiences much cooler conditions, with temperatures fluctuating between a chilly -1°C (30°F) and a maximum of 27°C (82°F), averaging around 10°C (50°F). Precipitation levels are relatively similar, with December receiving 43 mm (1.7 in) over 5 days and September totaling 42 mm (1.7 in) over 10 days, though the humidity is higher in September at 72% compared to December's 50%. For more detailed insights into September weather, visit Castlemaine weather in September.

In comparing the weather between December and October, it's clear that December experiences much warmer temperatures, with an average of 19°C (67°F) and highs reaching up to 43°C (110°F), while October's temperatures are significantly cooler, averaging 13°C (56°F) with a maximum of 33°C (91°F). Precipitation is slightly lower in December, totaling 43 mm (1.7 in) over about 5 days, compared to October's higher rainfall of 58 mm (2.3 in) spread across 8 days. Additionally, October tends to have higher humidity levels at 61%, compared to December's 50%. For more detailed information, you can check Castlemaine weather in October.

In comparison to November, December experiences significantly warmer temperatures, with a minimum of 6°C compared to November’s 1°C and a maximum soaring to 43°C, while November peaks at 38°C. The average temperature in December is also higher at 19°C, contrasted with November’s 16°C. Precipitation is slightly lower in December at 43 mm over 5 days, compared to November's 51 mm over 7 days, indicating a drier month. However, December also has lower humidity at 50%, while November’s humidity level is higher at 59%. For more details on November weather, check out Castlemaine weather in November.

Compare Castlemaine's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Castlemaine

December in Castlemaine heralds the arrival of summer, showcasing a vibrant contrast to the cooler months. With temperatures soaring to a maximum of 43°C (110°F) and a pleasant average of 19°C (67°F), residents and visitors experience a notable increase in warmth. While the humidity settles at a moderate 50%, it adds to the heat, creating a simmering atmosphere. Rainfall is infrequent, with only 43 mm occurring over just 5 days, making December one of the drier months. This combination of heat and dry conditions sets December apart from the rest of the year, making it the perfect time for outdoor adventures and summer festivities. For more detailed insights, explore the full Castlemaine Climate page.