Last updated: February 25, 2025
Adelaide, Australia, experiences a vibrant December, marked by a remarkable temperature range that reaches a maximum of 36°C (97°F), while comfortably averaging around 19°C (67°F). The evenings cool down to a pleasant minimum of 10°C (51°F), creating an inviting atmosphere. Although the month sees an average precipitation of 17 mm (0.7 in) over the course of just 4 days, the humidity level rests at 46%, providing a balanced and enjoyable summer climate. Embrace Adelaide's blooming beauty and dynamic weather patterns that make December a delightful time to explore this picturesque city.
In December, Adelaide, Australia basks in the warmth of summer, with temperatures showcasing a delightful range that signals the season’s gifts. The month starts with a minimum of 10°C (51°F), climbing to an inviting average of 19°C (67°F), while daytime highs can reach up to a sizzling 36°C (97°F). This trend of rising temperatures reflects a steady increase as the year progresses, peaking in January before gently tapering off in the cooler months. Overall, December offers a perfect blend of warmth, making it an ideal time for outdoor festivities and enjoying the vibrant city life under the sun.
In December, Adelaide experiences a moderate level of precipitation, with an average of 17 mm (0.7 in) spread over approximately 4 days. This marks a slight increase from the preceding months, which typically see a gradual rise in rainfall leading into the wetter winter season. Notably, December's rainfall is significantly lower than the late autumn months like May and June, which tend toward much higher totals. As summer approaches, the transition is evident, indicating a shift towards drier conditions that characterize the hotter months ahead. This pattern reflects the Mediterranean climate, where seasonal fluctuations play a key role in shaping the region's weather dynamics.
In Adelaide, Australia, the humidity levels exhibit a clear seasonal pattern throughout the year. December, with a humidity of 46%, marks the transition from the humid spring months. Prior to this, May and June witness peak levels of 73% and 76% respectively, leading into the winter months. As the year progresses into the warmer season, humidity begins to gently decline, reaching its lowest point in January at 41%. This gradual ebb during the summer contrasts with the increasing humidity from the cooler months of April through June. Overall, December serves as a refreshing respite before the humidity levels begin to rise again, highlighting Adelaide's dynamic climate throughout the year.
In December, Adelaide experiences its highest UV Index of the year at 15, categorizing it as extreme with a burn time of just 10 minutes. This spike in UV radiation follows a trend from the previous months, where the UV Index consistently ranged from very high in October to extreme levels in November. With summer approaching, residents and visitors are urged to take precautions to protect their skin from harmful effects. As the sun shines brightly and temperatures rise, it's essential to stay informed and vigilant. For more detailed insights on UV Index trends throughout the year, visit Adelaide UV Index.
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As the year draws to a close, December in Adelaide shines brighter than any other month, boasting an impressive 356 hours of sunshine. This peak illuminates a trend of increasing daylight that begins subtly in the earlier months, with October and November already showcasing robust sunshine totals of 305 and 319 hours respectively. This upsurge is a refreshing shift from the shorter winter days of June and July, which captured only 224 and 240 hours of sunlight. With each passing month, Adelaide residents can revel in the growing warmth, culminating in December's dazzling glow that not only enhances the city's charm but also invites both locals and visitors to bask in the auspicious summer radiance.
December in Adelaide boasts a promising 71% chance of sunny weather, making it one of the sunniest months of the year. This marks a noticeable increase compared to the cooler months, particularly from June to August, where the chances dip to around 38-40%. As the year progresses into spring, the likelihood of sunshine gradually rises, peaking in December, contrasting sharply with the more overcast conditions of late autumn and winter. This trend highlights Adelaide's transition into the warmer summer season, inviting locals and visitors alike to enjoy the vibrant, sun-drenched festivities that December has to offer.
In Adelaide, Australia, the dance of daylight throughout the year reveals a captivating rhythm. December, as the summer solstice approaches, shines bright with a full 14 hours of daylight, matching the promise of January's golden hue. This sunlit phenomenon gradually wanes, dipping to 13 hours in February and continuing its descent to 11 hours by April. As autumn settles in, daylight shrinks further, reaching a minimum of just 9 hours in the heart of winter during June. However, as the year progresses, daylight begins to stretch once more, gently climbing back to 14 hours by December, inviting the warmth and vibrancy of summer into full bloom. This cyclical pattern not only marks the changing seasons but also enriches the experience of life in Adelaide, ensuring each month offers its unique balance of light and shadow.
December in Adelaide brings a gentle caress from the sea breezes, with an average wind speed of 5.0 m/s (11 mph). This marks a slight dip from the brisk gusts earlier in the year, particularly the 6.2 m/s (14 mph) winds of July. As the year winds down, the winds maintain a consistent presence, similar to what is experienced in January and November. This trend signifies a transition, where the earlier months’ more vigorous breezes give way to a relaxed yet steady airflow, perfect for enjoying the outdoor festivities that December offers. As you soak in the warm summer sun, the December winds provide a refreshing backdrop, making it a delightful time to be in this vibrant city.
The weather in Adelaide 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 Adelaide and find detailed weather information for every month.
December and January in Adelaide exhibit warm temperatures, with January typically being slightly hotter. In December, the temperatures range from a minimum of 10°C (51°F) to a maximum of 36°C (97°F), with an average of 19°C (67°F) and about 17 mm of precipitation over 4 days. In contrast, January sees a higher temperature range of 13°C (55°F) to 39°C (103°F), with an average of 21°C (70°F) and slightly lower precipitation at 16 mm over just 2 days. Additionally, January tends to have lower humidity at 41%, compared to December's 46%. For more details, you can check the Adelaide weather in January.
December and February in Adelaide exhibit relatively mild and warm temperatures, with December generally experiencing a wider range, from a minimum of 10°C (51°F) to a maximum of 36°C (97°F). In contrast, February sees slightly higher minimum temperatures, starting at 12°C (54°F), while the average temperature remains comparable at around 20°C (69°F). Precipitation levels are somewhat similar between the two months, with December receiving 17 mm (0.7 in) over 4 days and February seeing a marginally higher 20 mm (0.8 in) over 3 days. Both months also maintain consistent humidity at 46%. To learn more about the specifics of February weather in Adelaide, visit Adelaide weather in February.
In December, the weather features warmer temperatures, with a minimum of 10°C and a maximum of 36°C, while March sees slightly cooler conditions, with temperatures ranging from a minimum of 11°C to a maximum of 33°C. Both months have similar average temperatures of around 19°C, but December is characterized by slightly lower humidity at 46%, compared to March's 55%. Precipitation levels are comparable, with December receiving 17 mm across four days and March slightly less at 15 mm over the same number of days. For more detailed information, you can check out the Adelaide weather in March.
December weather in Adelaide typically features higher temperatures, with a minimum of around 10°C (51°F) and an average of 19°C (67°F), peaking at a maximum of 36°C (97°F). Despite the warmth, December experiences relatively low precipitation, averaging 17 mm (0.7 in) over approximately four days, and it maintains a moderate humidity level of 46%. In contrast, April brings cooler temperatures, with averages dropping to 17°C (64°F) and maximums reaching 30°C (87°F). This month sees increased rainfall, averaging 32 mm (1.3 in) across about five days, and a notable rise in humidity at 66%. For more details on the climatic conditions, check out Adelaide weather in April.
December boasts warmer temperatures, ranging from a minimum of 10°C to a maximum of 36°C, with an average of 19°C. In contrast, May experiences cooler conditions, with temperatures ranging from a minimum of 8°C to a maximum of 25°C and an average of 14°C. Additionally, December sees relatively low precipitation at 17 mm over about 4 days, while May has significantly more rainfall at 61 mm spread over 10 days, resulting in higher humidity levels of 73%. For more details on the weather in May, visit Adelaide weather in May.
December in Adelaide is characterized by warmer temperatures, with a minimum of 10°C (51°F) and an average high of 36°C (97°F), making it quite warm and dry, receiving only 17 mm of precipitation over four days. In contrast, June experiences cooler conditions, with a minimum temperature of 6°C (43°F) and an average high of 19°C (66°F). Additionally, June sees significantly more rainfall, totaling 54 mm (2.1 in) across ten days, contributing to a much higher humidity level of 76%. For more details on the weather in June, check out Adelaide weather in June.
In December, the weather is considerably warmer than in July, with temperatures ranging from a minimum of 10°C (51°F) to a maximum of 36°C (97°F) and an average of 19°C (67°F). This month experiences relatively low precipitation, totaling only 17 mm (0.7 in) over about four days, while humidity sits at a comfortable 46%. In contrast, July is much cooler, featuring a minimum temperature of 6°C (42°F) and an average of 11°C (53°F), with a maximum reaching 18°C (65°F). This winter month sees significantly higher rainfall at 68 mm (2.7 in) across 12 days and has almost double the humidity at 76%. For more detailed information, check Adelaide weather in July.
December and August showcase distinctly different weather patterns. December tends to be much warmer, with temperatures ranging from a minimum of 10°C (51°F) to a maximum of 36°C (97°F), while August is considerably cooler, featuring temperatures from a low of 5°C (41°F) to a high of 20°C (68°F). Precipitation also varies significantly between the two months; December experiences only 17 mm (0.7 in) of rainfall over about 4 days, whereas August sees substantially higher rainfall at 75 mm (2.9 in) across approximately 12 days. Additionally, December has a lower humidity level of 46% compared to August's more humid 70%. For a detailed look at the August climate, you can visit Adelaide weather in August.
When comparing the weather in September and December, we see notable differences in temperature and precipitation patterns. December boasts warmer temperatures, with a minimum of 10°C (51°F) and a maximum reaching 36°C (97°F), while September's range is cooler, starting at 5°C (42°F) and peaking at 25°C (77°F). Additionally, December experiences significantly less precipitation, averaging only 17 mm (0.7 in) over 4 days compared to September's 44 mm (1.7 in) across 9 days. The humidity is also lower in December at 46%, in contrast to September's higher humidity level of 65%. For more detailed insights, check out Adelaide weather in September.
In comparing the weather in December and October, December tends to be warmer, with temperatures ranging from a minimum of 10°C to a maximum of 36°C, averaging around 19°C. In contrast, October has slightly cooler temperatures, with a minimum of 8°C and a maximum of 30°C, averaging 15°C. Precipitation is also lower in December, at 17 mm over just 4 days, while October experiences more rainfall, totaling 38 mm over 7 days. Additionally, humidity levels in October are higher at 51%, compared to 46% in December. For more details, you can check Adelaide weather in October.
In comparing December to November, December typically showcases warmer temperatures, with a minimum of 10°C (51°F) and a maximum of 36°C (97°F), compared to November's lower range of 8°C (47°F) to 34°C (93°F). The average temperature in December is also higher at 19°C (67°F) versus 17°C (63°F) in November. Precipitation decreases significantly in December, with only 17 mm (0.7 in) across just 4 days, while November experiences higher rainfall of 38 mm (1.5 in) over 6 days. Humidity also drops slightly in December to 46%, compared to November's 50%. For additional details, you can explore the full comparison at Adelaide weather in November.
As December arrives, Adelaide experiences a charming transition into summer, characterized by warmer temperatures and longer daylight hours. With days often hitting their peak warmth, the city is bathed in heat and sunshine, creating the perfect backdrop for outdoor activities and festive gatherings. Unlike the cooler months, when temperatures dip and precipitation is more frequent, December enjoys a relatively low humidity level and only a handful of rainy days, contributing to its vibrant atmosphere. This shift to a warm and dry climate makes it an ideal time to explore all that Adelaide has to offer, from its stunning beaches to lush vineyards. For a deeper understanding of the city's climate throughout the year, check out Adelaide Climate.