December Weather in Swan Hill, Australia

Last updated: February 25, 2025

December in Swan Hill, Australia is marked by hot temperatures and low humidity, with maximums soaring to a staggering 46°C (115°F) and an average of 23°C (74°F), while the nights cool down to a refreshing 8°C (47°F). This month experiences a moderate precipitation total of 36 mm (1.4 in) over just 2 days, contributing to the region's generally arid climate. With a humidity level of 39%, December presents an ideal setting for those who enjoy warm, sun-drenched days, making it a perfect time for outdoor activities amidst the uniquely vibrant landscape.

December Temperature in Swan Hill

In December, Swan Hill experiences the onset of summer with temperatures that range significantly throughout the month. The minimum temperature hovers around 8°C (47°F), providing a mild start to the day, while the average temperature reaches a pleasant 23°C (74°F), perfect for outdoor activities. By daytime, things heat up considerably, peaking at a sweltering 46°C (115°F), indicating a trend towards more extreme heat as the year winds down. This gradual rise in temperatures leading into summer showcases Swan Hill's characteristic climate, where long, hot days dominate, making it an ideal time for leisurely pursuits and festive gatherings under the bright Australian sun.

December Weather in Swan Hill: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Swan Hill, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec797571635449495055636974
Data source: Temperature data for Swan Hill 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 Swan Hill

In December, Swan Hill experiences relatively moderate precipitation, with 36 mm (1.4 in) of rainfall over just 2 days. This month continues a trend of increasing moisture that began in the latter part of the year, following November's higher total of 41 mm (1.6 in). December’s figures suggest a slight decrease compared to November, yet they remain significantly above the precipitation levels seen earlier in the year. The rainfall patterns indicate a transition into the wet season, with increased variability in precipitation amounts throughout the months, particularly from October onward, which typically sees the highest totals. As the year closes, December sets the stage for the summer months ahead, balancing the drier conditions experienced in the earlier months.

December Precipitation Trends in Swan Hill

The chart displays monthly precipitation patterns in Swan Hill, 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.
JanFebMarAprMayJunJulAugSepOctNovDec181317312523223020394136
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Swan Hill

In Swan Hill, Australia, December marks a notable dip in humidity, settling at 39%, a refreshing contrast to the higher levels experienced in the preceding months. This decrease continues a downward trend from the peak of 78% in July, as summer approaches. As the year progresses, humidity levels generally rise from 35% in January to a mid-year high of 77% in June, creating a humid atmosphere well into winter. Post-June, however, a gradual reduction is observed, leading to milder conditions by December. This pattern underscores the region’s transition from the lush, damp winter months to the drier heat of summer, making December a relatively comfortable month in Swan Hill.

December Average Humidity in Swan Hill

This chart illustrates the average monthly humidity levels in Swan Hill, 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.
JanFebMarAprMayJunJulAugSepOctNovDec35%42%53%64%73%77%78%73%66%52%47%40%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Swan Hill

In Swan Hill, Australia, the UV Index sees a remarkable increase in December, soaring to 15, which categorizes it as extreme and indicates a burn time of just 10 minutes. This peak follows a pattern seen throughout the warmer months, where the UV Index consistently hovers in the extreme range from November to March, highlighted by January's UV Index of 14 and February's 13. Notably, as temperatures rise in December, so does the risk of overexposure, urging residents and visitors alike to adopt effective sun protection strategies. As the year progresses into autumn and winter, the index gradually decreases, reflecting a seasonal shift in sun intensity. For optimal safety, it's essential to stay informed about the UV levels. For more detailed information, visit Swan Hill UV Index.

Maximum UV Index Levels in Swan Hill for December

The chart shows the monthly maximum UV Index (UVI) for Swan Hill 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.
JanFebMarAprMayJunJulAugSepOctNovDec141312853358101315
Data source: Swan Hill 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 Swan Hill

In Swan Hill, Australia, December shines brightly as the month with the most sunlight, boasting an impressive 359 hours of radiant rays. This peak in sunshine sets the stage for the summer season, following the trend of increasing daylight leading into the year’s end. As we move through the month-to-month journey, there’s a noticeable escalation in sunshine hours, particularly from May’s 230 hours to December’s remarkable figures, highlighting a clear transition towards longer, sunnier days. The year culminates with December’s abundant light, providing both warmth and vibrancy, making it the perfect time to embrace outdoor adventures and community festivities under the clear skies of Swan Hill.

Monthly Sunshine Duration in Swan Hill: December Highlighted

The December sunshine duration represents the total number of hours Swan Hill 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.
JanFebMarAprMayJunJulAugSepOctNovDec295h312h310h259h230h211h222h233h272h305h319h359h
Data source: Swan Hill December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Swan Hill During December

In Swan Hill, Australia, the likelihood of enjoying sunny weather significantly increases as the year draws to a close. December stands out with a 77% chance of sunshine, making it one of the sunniest months of the year. This trend highlights a clear transition from the cooler months—like June and July, which see chances plummet to 38% and 43% respectively—to a bright and warm start to summer. As the seasons shift, the sunshine factor gradually rises, peaking in December and encouraging both locals and visitors to embrace outdoor activities in the warmth of the sun.

Percentage of Sunny Days in December in Swan Hill

The chart illustrates the percentage of sunny days in Swan Hill 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 Swan Hill experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec66%75%59%69%54%38%43%52%57%54%45%77%
Data source: Swan Hill December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Swan Hill in December

In Swan Hill, Australia, the rhythm of daylight unfolds beautifully throughout the year, peaking in the summer months. December stands out with an impressive 14 hours of daylight, mirroring the long, sunlit days of January. As the year progresses from March’s 12 hours to 11 hours in April, the gradual decline hints at the approaching winter. The winter months of June and July see daylight dip to just 9 and 10 hours, respectively, before a gentle increase begins in August. By November, daylight returns to 13 hours, marking the transition back to the longer days of summer. This cyclical pattern not only influences daily life in Swan Hill but also paints a vivid picture of the seasonal changes that define this vibrant region.

Average Daylight Hours in Swan Hill for December

The chart illustrates the variation in daylight duration in Swan Hill throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec14h 12m13h 21m12h 16m11h 10m10h 15m9h 48m10h 2m10h 49m11h 51m12h 58m13h 57m14h 28m
Data source: Swan Hill daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Swan Hill

In Swan Hill, Australia, December ushers in consistent breezes, with an average wind speed of 4.1 m/s (9 mph), mirroring the gentle winds experienced in the preceding months. Notably, as the year draws to a close, the wind speeds show a slight dip from the seasonal high of 4.3 m/s in February. However, this December reading remains on par with the averages of earlier months, showcasing the region's moderate wind conditions throughout the latter part of the year. This pattern of steady winds is characteristic of Swan Hill, creating a pleasant atmosphere for both residents and visitors alike to enjoy the outdoors during the festive season.

Average December Wind Speed in Swan Hill

The chart displays monthly wind speed patterns in Swan Hill, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.24.33.93.23.63.84.03.64.24.24.14.1 m/s
Data source: Swan Hill December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Swan Hill Compares to Other Months

The weather in Swan Hill 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 Swan Hill and find detailed weather information for every month.

In December, the weather typically features a minimum temperature of 8°C (47°F) and an average of 23°C (74°F), peaking at a high of 46°C (115°F). The month experiences a modest precipitation level of 36 mm (1.4 in) over 2 days, with humidity hovering around 39%. In contrast, January sees slightly milder conditions, with a minimum temperature of 10°C (50°F) and an average of 26°C (79°F), reaching up to 47°C (116°F). Rainfall decreases to 18 mm (0.7 in) over the same two days, while humidity dips slightly to 35%. For more details on January weather, check this link: Swan Hill weather in January.

In December, temperatures in Swan Hill range from a minimum of 8°C (47°F) to a maximum of 46°C (115°F), with an average temperature of 23°C (74°F). The month sees relatively low precipitation, totaling 36 mm (1.4 in) over just 2 days, and humidity levels at 39%. In contrast, February features slightly cooler conditions, with temperatures ranging from a minimum of 7°C (45°F) to a maximum of 45°C (113°F), and an average of 24°C (75°F). Precipitation is notably lower at 13 mm (0.5 in), also falling over 2 days, while humidity increases slightly to 42%. Overall, February offers a more moderate climate compared to December. For more specific details, you can check Swan Hill weather in February.

In December, the weather is characterized by a broader temperature range, with minimum temperatures around 8°C (47°F) and maximums peaking at a scorching 46°C (115°F). This month experiences low humidity at 39% and slightly higher precipitation at 36 mm (1.4 in) over two days. In contrast, March sees similar minimum temperatures at 7°C (45°F) and a noticeably lower maximum of 38°C (101°F). The humidity rises to 53%, and precipitation decreases to 17 mm (0.7 in) over the same two-day span. For a more detailed look at the weather patterns in March, you can check Swan Hill weather in March.

December and April present contrasting weather patterns. In December, temperatures range significantly, with a minimum of 8°C (47°F) and soaring to a maximum of 46°C (115°F), contributing to an average of 23°C (74°F). The month is relatively dry, with only 36 mm (1.4 in) of precipitation over just 2 days and lower humidity at 39%. In contrast, April features cooler temperatures, with a minimum of 2°C (36°F) and a maximum of 38°C (101°F), leading to a more moderate average of 17°C (63°F). The month experiences slightly more rainfall, totaling 31 mm (1.2 in) across 3 days, and notably higher humidity at 64%. For more specifics on the weather in April, you can check this link: Swan Hill weather in April.

In December, temperatures soar with a minimum of 8°C (47°F) and a scorching maximum reaching up to 46°C (115°F), while average temperatures hover around 23°C (74°F). The month sees only a couple of rainy days, totaling 36 mm (1.4 in) of precipitation, accompanied by lower humidity levels of 39%. In stark contrast, May offers much cooler weather, with temperatures ranging from a chilly minimum of 0°C (32°F) to a pleasant maximum of 28°C (83°F), averaging at 12°C (54°F). This month experiences more frequent rain, with precipitation occurring over 5 days and totaling 25 mm (1.0 in), along with a higher humidity level of 73%. For more detailed insights on May weather, you can visit Swan Hill weather in May.

December and June present stark contrasts in weather conditions. In December, temperatures soar with a minimum of 8°C (47°F) and can reach a blistering maximum of 46°C (115°F), averaging around 23°C (74°F). The month experiences low precipitation, totaling just 36 mm (1.4 in) over 2 days, coupled with relatively low humidity at 39%. In contrast, June brings much cooler temperatures, with a minimum of -2°C (29°F) and a maximum of 20°C (68°F), averaging only 9°C (49°F). This month sees slightly more precipitation, totaling 23 mm (0.9 in) spread over 4 days, and markedly higher humidity at 77%. For a detailed look at the weather, you can check Swan Hill weather in June.

In December, temperatures in Swan Hill reach an impressive range, with a minimum of 8°C (47°F) and soaring to a maximum of 46°C (115°F), resulting in an average temperature of 23°C (74°F). The month experiences low precipitation, totaling 36 mm (1.4 in) over just 2 days, while humidity sits at a comfortable 39%. In stark contrast, July brings cooler weather, with temperatures dropping to a minimum of -3°C (26°F) and peaking at 23°C (74°F), averaging 9°C (49°F). This month sees slightly more precipitation, at 22 mm (0.9 in) spread over 5 days, coupled with higher humidity levels at 78%. For a more detailed look at July weather, you can check Swan Hill weather in July.

When comparing the weather in December and August, significant differences in temperature and humidity become evident. December experiences much warmer conditions with temperatures ranging from a minimum of 8°C (47°F) to a scorching maximum of 46°C (115°F), while August is notably cooler, with temperatures ranging from -1°C (30°F) to a maximum of 24°C (75°F). Additionally, December has lower humidity at 39%, compared to August's high humidity level of 73%, creating a stark contrast in comfort levels. Precipitation also differs, with December receiving around 36 mm (1.4 in) over just 2 days, whereas August experiences 30 mm (1.2 in) spread over 6 days. For a deeper insight into August's weather, you can visit Swan Hill weather in August.

The comparison of weather between December and September reveals significant differences. December boasts a much warmer climate, with temperatures ranging from a minimum of 8°C (47°F) to a scorching maximum of 46°C (115°F), while September experiences cooler temperatures, with a minimum of -1°C (31°F) and a maximum of 36°C (98°F). Additionally, December has lower humidity at 39% compared to September's 66%, contributing to a drier atmosphere. Precipitation is also more abundant in September with 20 mm (0.8 in) over 4 days, compared to December's 36 mm (1.4 in) over only 2 days. For further details on September weather, you can check out Swan Hill weather in September.

In December, the weather in Swan Hill is notably warmer, with an average temperature of 23°C (74°F) and a maximum reaching up to 46°C (115°F), compared to October, where the average is cooler at 17°C (63°F) with a maximum of 38°C (100°F). Precipitation is slightly lower in December, with 36 mm (1.4 in) over just 2 days, while October sees a bit more rain at 39 mm (1.5 in) across 6 days. Additionally, humidity levels are generally lower in December at 39%, compared to 52% in October, making December feel hotter and drier overall. For more detailed insights into October's weather, you can check out Swan Hill weather in October.

In comparing the weather of December and November, December tends to be significantly warmer, with average temperatures reaching 23°C (74°F) compared to November's 20°C (69°F). The minimum temperature in December is also higher at 8°C (47°F) versus November's 4°C (40°F). However, November experiences slightly more precipitation, with 41 mm (1.6 in) over five days compared to December's 36 mm (1.4 in) over just two days. Additionally, humidity levels are higher in November at 47%, compared to December's 39%. For more details on November weather, you can check Swan Hill weather in November.

Compare Swan Hill's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Swan Hill

In December, Swan Hill welcomes the warmth of summer with significantly higher temperatures, making it a striking contrast to the cooler months. The blend of hot days and mild nights creates a lively atmosphere, while the low humidity offers some relief from the heat. With just a couple of rainy days and minimal precipitation, it's the ideal time for outdoor activities and enjoying the sunshine. This vibrant weather marks a shift from the chilly winter and spring seasons, making December a delightful month for both locals and visitors. For a deeper look into seasonal trends, visit Swan Hill Climate.