Last updated: February 25, 2025
In Perth, Australia, December ushers in the warmth of summer with maximum temperatures soaring up to 40°C (104°F) and a pleasant average of 23°C (73°F). Visitors can expect a comfortable climate with minimum temperatures around 10°C (51°F) during the cooler nights. While the month sees only 8 mm (0.3 in) of rainfall spread over just 2 days, humidity levels hover around 53%, creating an inviting atmosphere for outdoor activities. Embrace the sun-kissed days and clear skies that December in Perth has to offer!
In December, Perth, Australia basks in the warmth of summer, with temperatures on a steady rise. The month opens with minimums around 10°C (51°F), while afternoon highs can soar to a scorching 40°C (104°F), showcasing the season's peak heat. On average, residents and visitors enjoy pleasant days at 23°C (73°F), making it an ideal time for outdoor activities and beach outings. This upward trend in temperature is a vibrant indicator of the summer season, as Perth transitions from its milder spring months, clearly inviting everyone to savor the sun-soaked days and balmy evenings.
In December, Perth experiences a marked shift as it transitions into summer, with precipitation levels dropping significantly to just 8 mm (0.3 in) across only 2 days of rain. This low level of rainfall is consistent with the trend seen in the latter months of the year, where precipitation steadily declines from November's 26 mm (1.0 in). As the city enjoys more sunshine and warmer temperatures, December stands out as one of the driest months, emphasizing Perth's Mediterranean climate where the majority of rainfall occurs in the mid-year. This seasonal pattern signifies a shift towards outdoor leisure and the vibrant summer atmosphere that defines the month.
As the year winds down in December, Perth experiences a noticeable dip in humidity levels, averaging 53%. This marks a decline from the conditions of the preceding months, where humidity peaked in June and July at 77%. Throughout the year, humidity in Perth typically rises from the lower 50s in the summer months of January and February to a peak during the winter. December stands out as a transitional month, easing back to the more comfortable levels seen earlier in the year. This trend not only highlights Perth's distinctive climate patterns but also offers a refreshing escape from the humidity as summer approaches again.
In December, Perth, Australia, continues to experience its summer peak with a UV Index of 14, categorizing it as extreme. This high level of UV exposure, consistent with the preceding months of November and January, underscores the importance of sun safety, as the skin can burn in just 10 minutes. Notably, from March through April, there is a gradual decline in UV intensity, shifting from extreme to very high levels. However, as the year ends, the UV Index spikes again, highlighting Perth's characteristic intense summer sun. Those planning outdoor activities should remain vigilant and take appropriate precautions to protect themselves from harmful UV radiation. For more detailed information on the UV index in Perth, visit Perth UV Index.
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December in Perth, Australia, shines exceptionally bright, boasting a remarkable 384 hours of sunshine, the highest of the year. This festive month marks a significant increase from the previous months, showcasing a clear upward trend as daylight hours reach their peak. Following the moderate sunshine of November at 352 hours, December's brilliance heralds the arrival of summer, outshining the earlier months like April and May, which hugged the lower end of the scale with 289 and 279 hours respectively. As the year draws to a close, the sun-drenched days of December invite both residents and visitors to bask in the warmth, setting a joyful tone for the holiday season.
In Perth, Australia, December shines brightly with a remarkable 79% chance of sunny weather, making it one of the sunniest months of the year. This month stands out against the more variable conditions seen in the months leading up to it. After a gradual decline in sunshine probability from the peak of January (73%) through to October (49%), December marks a revitalizing return to more favorable weather, reminiscent of the warmth and brightness typical of the city's summer. As the year closes, residents and visitors can look forward to delightful outdoor activities under the sun, reflecting the seasonal trend of increasingly favorable weather during this vibrant month.
In December, Perth, Australia basks in an impressive 14 hours of daylight, marking the height of the Southern Hemisphere's summer. This surge in sunlight is part of a broader trend that begins in spring and culminates in December before gradually tapering off as the year progresses. From the longest days in December, daylight hours decrease to about 13 hours in November and January, and then gradually decline through March's 12 hours down to a minimum of 10 hours from May to August. As the seasons shift, Perth experiences a rhythmic ebb and flow of daylight, with the sun's generous presence in December promising longer, sun-kissed days for outdoor adventures and celebrations.
As December rolls into Perth, Australia, the wind starts to pick up a notch, averaging 5.9 m/s (13 mph), which marks a subtle resurgence compared to the quieter months of spring. Notably, this increase follows a trend observed since October, where wind speeds gradually intensified, reaching similar levels witnessed during the peak winter months of July. While December's breezes are brisker than the calmer autumn days, they're not as fierce as the gusts of the early summer. This characteristic transition showcases Perth’s unique climate rhythm, blending the warmth of impending summer with invigorating winds that dance through the city, creating an enchanting atmosphere perfect for outdoor activities and gatherings.
The weather in Perth 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 Perth and find detailed weather information for every month.
In December, temperatures in the region range from a minimum of 10°C (51°F) to a scorching maximum of 40°C (104°F), with an average temperature of 23°C (73°F). The month experiences minimal precipitation, totaling just 8 mm (0.3 in) over 2 days, and the humidity hovers around 53%. In contrast, January sees slightly warmer temperatures, with a minimum of 13°C (56°F), an average of 24°C (75°F), and a maximum of 37°C (99°F). Notably, January has a higher total precipitation of 31 mm (1.2 in), although it records no rainy days, and the humidity remains fairly consistent at 52%. For more detailed information, check out Perth weather in January.
December and February exhibit distinct weather patterns, with December generally being warmer. In December, temperatures range from a minimum of 10°C (51°F) to a maximum of 40°C (104°F), averaging around 23°C (73°F). Precipitation is minimal, with only 8 mm (0.3 in) over 2 days and humidity at 53%. In contrast, February sees slightly higher temperatures, featuring a minimum of 14°C (57°F), an average of 24°C (75°F), and a maximum of 38°C (101°F). However, February experiences significantly more rainfall, totaling 58 mm (2.3 in) over 4 days, and humidity levels rise slightly to 55%. For a detailed overview of February weather, visit Perth weather in February.
In December, the weather is typically warmer, with temperatures ranging from a minimum of 10°C (51°F) to a maximum of 40°C (104°F), while March sees slightly cooler temperatures, with a minimum of 11°C (53°F) and a maximum of 35°C (96°F). Both months share the same average temperature of 23°C (73°F), but December experiences less precipitation at 8 mm (0.3 in) over just 2 days, compared to March, which has a total of 21 mm (0.8 in) spread over 4 days. Additionally, March tends to be slightly more humid, with an average humidity of 59% compared to December's 53%. For more information about the weather during this time, you can check Perth weather in March.
December tends to be warmer than April, with average temperatures reaching up to 23°C (73°F) compared to April’s 20°C (68°F). In December, the maximum temperature can soar to 40°C (104°F), while April peaks at a more moderate 34°C (94°F). Precipitation is less frequent in December, totaling just 8 mm (0.3 in) over 2 days, in contrast to April, which receives 21 mm (0.8 in) over 3 days. Additionally, the humidity in April is noticeably higher at 70%, compared to December's 53%. For a more detailed overview of April's weather, visit Perth weather in April.
December and May present contrasting weather conditions. In December, temperatures can soar to a maximum of 40°C (104°F), with an average of 23°C (73°F) and relatively low precipitation of only 8 mm (0.3 in) over just 2 days, resulting in a humidity level of 53%. In stark contrast, May experiences cooler temperatures, with a maximum of 29°C (84°F) and an average of 17°C (62°F). Additionally, May sees significantly more rainfall, totaling 58 mm (2.3 in) over 8 days, contributing to higher humidity levels at 72%. This difference highlights the shift from the dry heat of December to the cooler, wetter conditions of May. For more detailed information, you can check Perth weather in May.
When comparing the weather in December and June, noticeable differences emerge. December generally enjoys warmer temperatures, with a minimum of 10°C (51°F) and highs reaching up to 40°C (104°F), while June is notably cooler, starting from a minimum of 8°C (46°F) and peaking at only 24°C (75°F). Additionally, December tends to be drier, with only 8 mm (0.3 in) of precipitation over just 2 days, compared to June’s significant rainfall of 107 mm (4.2 in) occurring over 11 days. The humidity also reflects this contrast, with December averaging 53% and June considerably higher at 77%. For those interested in exploring more about Perth's June weather, visit Perth weather in June.
In comparing the weather of December and July, it's evident that December is significantly warmer, boasting maximum temperatures reaching up to 40°C (104°F) and an average of 23°C (73°F). In contrast, July experiences milder conditions with maximum temperatures only reaching 23°C (73°F) and an average of 15°C (58°F). Additionally, December sees very little rainfall, with only 8 mm (0.3 in) over just 2 days, while July is considerably wetter, receiving 115 mm (4.5 in) over 16 days. The humidity levels also vary notably, with December at 53% compared to a much higher 77% in July. For a closer look at July's climate details, check out Perth weather in July.
December and August present contrasting weather patterns. In December, temperatures range from a minimum of 10°C (51°F) to a scorching maximum of 40°C (104°F), with an average of 23°C (73°F). The month experiences minimal rainfall, totaling only 8 mm (0.3 inches) over just 2 days and humidity levels at 53%. In contrast, August is considerably cooler, with temperatures ranging from 7°C (45°F) to a maximum of 26°C (78°F) and an average of 14°C (58°F). This month is much wetter, receiving 103 mm (4.1 inches) of precipitation over 11 days and presenting higher humidity at 75%. For a more detailed overview of the conditions, check out Perth weather in August.
In comparing the weather of December and September, December is notably warmer with average temperatures ranging from a minimum of 10°C (51°F) to a scorching maximum of 40°C (104°F), while September sees much cooler temperatures, with averages between 7°C (44°F) and 28°C (83°F). Additionally, December experiences significantly less precipitation, with only 8 mm (0.3 in) over just 2 days, compared to September's 42 mm (1.6 in) spread over 7 days, indicating a wetter month overall. Furthermore, September's humidity level is higher at 71%, compared to December's relatively lower humidity of 53%. For a detailed look at September weather, visit Perth weather in September.
When comparing the weather in December and October, it's clear that December features warmer temperatures, with a minimum of 10°C (51°F) and reaching highs of 40°C (104°F), while October has milder temperatures, with a minimum of 9°C (48°F) and a maximum of 32°C (90°F). Additionally, December experiences significantly less precipitation, receiving only 8 mm (0.3 in) over just 2 days compared to October's 41 mm (1.6 in) spread across 7 days. Humidity levels also differ, with December sitting at 53% compared to October's higher humidity of 63%. For more detailed information, you can check Perth weather in October.
Comparing the weather between November and December reveals some notable differences. December experiences warmer temperatures overall, with average highs reaching up to 40°C (104°F) compared to November's maximum of 35°C (96°F). The minimum temperatures are similar, hovering around 10°C (50°F) in both months. Additionally, December sees significantly less rainfall, with only 8 mm (0.3 in) over 2 days, whereas November has higher precipitation levels at 26 mm (1.0 in) over 3 days. Humidity decreases slightly in December to 53%, compared to November's 56%. For more detailed information, you can check out Perth weather in November.
December in Perth marks the transition into the warm summer months, characterized by higher temperatures and lower precipitation compared to other times of the year. With maximum highs reaching up to 40°C (104°F), it’s a stark contrast to the cooler, wetter months preceding it. The average temperature sits comfortably at 23°C (73°F), while the air maintains a moderate humidity level of 53%, creating a unique australian summer experience. As precipitation drops significantly, with only about 8 mm falling on just 2 days, outdoor activities become increasingly popular. For those looking to plan their visit or simply learn more about the nuances of Perth's weather, check out the detailed information available on Perth Climate.