August Weather in Perth, Australia

Last updated: February 25, 2025

Perth's weather in August offers a cool yet invigorating experience, characterized by a maximum temperature of 15°C (60°F) and an average of 7°C (45°F), dipping as low as -3°C (27°F) at times. Visitors can expect a relatively wet month with 70 mm (2.8 in) of precipitation spread over 12 days, contributing to the city's lush winter landscapes. The atmosphere remains notably humid, averaging around 83%, creating a refreshing coastal ambiance that complements the scenic beauty of Perth. Embrace the distinct chill and occasional rain as you explore this vibrant Australian city.

August Temperature in Perth

In August, Perth experiences its coolest temperatures of the year, with minimums typically around -3°C (27°F) and average highs reaching only 15°C (60°F). The month is marked by a steady chill, as the city transitions from the depths of winter to the spring warmth that gradually follows. Despite August's brisk conditions, the average temperature hovers at 7°C (45°F), slightly warmer than the preceding month of July, indicating a slow but noticeable shift. As residents and visitors bundle up against the cool air, they can look forward to a gradual increase in temperatures in the weeks to come, paving the way for the vibrant blooms of spring.

August Weather in Perth: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Perth, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec636159534844434447525659
Data source: Temperature data for Perth 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.

August Precipitation in Perth

In August, Perth experiences a notable precipitation level of 70 mm (2.8 in) over 12 rainy days, marking a continuation of the city's wet winter pattern. This month typically sees a slight dip from the heavier rainfall of July, which recorded 89 mm (3.5 in), yet it remains consistent with trends observed in the preceding months. As the winter season draws to a close, August still provides ample moisture, contributing to the region’s lush landscapes. The rainfall is not only vital for replenishing local water supplies but also sets the stage for the drier months ahead. With September showing a forecasted precipitation of 68 mm (2.7 in), it's clear that while August may not lead, it maintains an essential role in Perth's yearly climatic rhythm.

August Precipitation Trends in Perth

The chart displays monthly precipitation patterns in Perth, with values for each month alongside August's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec506868587755897068855671
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Perth

In August, Perth experiences a humidity level of 83%, maintaining a pattern of elevated moisture that has characterized the winter months. Following a gradual rise from 77% in April to 84% in July, the humidity slightly dips but remains consistent with the higher averages of the season. This trend reflects the city's transition into spring, as the humidity begins to decrease modestly in the subsequent months. Although August's levels are lower than those of July, they are still indicative of the lush, green landscapes that Perth embraces during the cooler half of the year. As summer approaches, residents and visitors alike can expect a gradual decline toward drier conditions in the months ahead.

August Average Humidity in Perth

This chart illustrates the average monthly humidity levels in Perth, with August's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how August's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec69%68%73%77%83%83%84%83%80%76%76%71%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Perth

In August, the UV Index in Perth climbs to a moderate level of 4, indicating a shift towards more intense sun exposure as winter begins to wane. This month, the recommended burn time is 30 minutes, a notable increase from the low levels seen in June and July. As we transition from the cooler months, it’s essential to remain mindful of sun safety, especially since the index will continue to rise in the following months. The trend showcases a gradual uptick in UV exposure leading into spring, with September’s index returning to 6 and continuing to escalate towards the extremes experienced in the summer months. For more detailed insights on UV levels, visit Perth UV Index.

Maximum UV Index Levels in Perth for August

The chart shows the monthly maximum UV Index (UVI) for Perth in August, 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.
JanFebMarAprMayJunJulAugSepOctNovDec13111063224681113
Data source: Perth August 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.

August Sunshine in Perth

In August, Perth enjoys an uplifting 235 hours of sunshine, a delightful respite as winter begins to wane. This month marks a gradual increase from the cooler, darker days of winter, particularly from June's low of 191 hours. As spring approaches, the sunshine hours rebound significantly, with August serving as a bridge toward the vibrant sunshine of September and beyond. Tracking the yearly trend, Perth's sunlit days peak in the summer, reaching a dazzling 354 hours in December, illustrating the city's reputation as a sun-soaked paradise. The consistent increase in daylight is not just a relief for the locals but also a beckoning call to visitors drawn to the charm of Perth's sunny disposition.

Monthly Sunshine Duration in Perth: August Highlighted

The August sunshine duration represents the total number of hours Perth experiences direct sunlight during the month of August, excluding cloudy or obstructed periods. This chart compares the sunshine duration of August with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec297h296h286h249h217h191h210h235h260h299h319h354h
Data source: Perth August Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Perth During August

In August, the likelihood of experiencing sunny weather in Perth, Australia, hovers around 32%, reflecting a trend that sees a dip in sunshine compared to the bustling summer months. This figure places August among the lower probabilities for sun, following the relatively warmer and sunnier months like February (44%) and April (50%). The trend indicates a gradual transition toward sunnier conditions as the year progresses, with September showing a promising rebound at 43%. Despite August’s cooler, cloudier days, the anticipation of brighter skies is just around the corner, welcoming the arrival of spring. Overall, while August may not be the prime time for sunshine, it serves as a bridging period between winter's chill and the sunny delights that await in the approaching months.

Percentage of Sunny Days in August in Perth

The chart illustrates the percentage of sunny days in Perth throughout the year, with August 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 Perth experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec38%44%40%50%44%19%32%32%43%30%37%49%
Data source: Perth August chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Perth in August

As winter wanes in Perth, August marks a subtle transition in daylight duration, offering a welcome resurgence of sunlight. With a daylight span of 10 hours, August mirrors April's shorter days, yet hints at the longer days to come. The slow but steady increase in sunlight begins in this month, as daylight gradually extends again until it reaches a vibrant 15 hours in December. This seasonal shift embodies the ebb and flow of light in Perth's yearly rhythm, where each month builds on the last, encouraging outdoor adventures and a growing sense of warmth as spring approaches.

Average Daylight Hours in Perth for August

The chart illustrates the variation in daylight duration in Perth throughout the year, with August highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec14h 46m13h 41m12h 19m10h 56m9h 46m9h 11m9h 29m10h 29m11h 48m13h 12m14h 27m15h 6m
Data source: Perth daylight hours, calculated by summing the hours between sunrise and sunset for each day.

August Winds in Perth

In August, Perth experiences a notable increase in wind speed, averaging 3.7 m/s (8 mph), marking it as one of the breezier months of the year. Following July's consistent speed of 3.0 m/s, August not only feels invigorating but also sets the stage for a shift in seasonal patterns as spring approaches. This uptick in wind activity continues into September, where speeds slightly decline to 3.6 m/s, before tapering off in the subsequent months. Overall, Perth's wind pattern reveals a gentle yet progressive transition, with summer months generally offering calmer breezes.

Average August Wind Speed in Perth

The chart displays monthly wind speed patterns in Perth, with values for each month shown alongside August's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how August's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.92.82.63.02.82.83.03.7 m/s3.63.22.73.2
Data source: Perth August wind data, generated using information from the Copernicus Climate Change Service.

How August Weather in Perth Compares to Other Months

The weather in Perth changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of August'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.

When comparing the weather in August and January, significant differences emerge. August typically features cooler temperatures with a minimum of -3°C (27°F) and an average of 7°C (45°F), peaking at 15°C (60°F). In contrast, January is much warmer, with a minimum of 4°C (40°F) and an average of 17°C (64°F), reaching highs of 33°C (91°F). Additionally, August experiences higher precipitation, totaling 70 mm (2.8 in) over 12 days, whereas January sees less rain at 50 mm (2.0 in) over only 5 days. The humidity in August is also higher at 83%, compared to January’s 69%. For more detailed information, you can check Perth weather in January.

August and February present contrasting weather patterns. In August, temperatures are notably cooler, with a minimum of -3°C (27°F) and an average of 7°C (45°F), peaking at 15°C (60°F). The month experiences higher humidity at 83% and sees precipitation on about 12 days, totaling 70 mm (2.8 in). In contrast, February offers much warmer temperatures, with a minimum of 3°C (37°F) and an average of 16°C (61°F) soaring to a maximum of 33°C (92°F). Though February has slightly less precipitation at 68 mm (2.7 in) over 8 days and lower humidity at 68%, it creates a distinctly more comfortable and sunny atmosphere. For a closer look at February weather conditions, visit Perth weather in February.

In August, the weather is notably cooler with temperatures ranging from a minimum of -3°C (27°F) to a maximum of 15°C (60°F) and an average of 7°C (45°F). This month experiences around 70 mm (2.8 in) of precipitation over 12 days, accompanied by high humidity levels of 83%. In contrast, March brings warmer temperatures, showcasing a minimum of 1°C (35°F) and soaring to an average high of 31°C (88°F), with an average temperature of 15°C (59°F). Despite similar precipitation levels at 68 mm (2.7 in) over just 9 days, March enjoys a lower humidity of 72%. For a more detailed look at March weather, check out Perth weather in March.

In comparing the weather of August and April, it's evident that April tends to be milder and more pleasant. April's average temperature reaches 12°C (53°F), with maximums soaring up to 25°C (77°F), while August has a much cooler average of 7°C (45°F) and a maximum of only 15°C (60°F). Although both months experience precipitation, April sees less rain at 58 mm (2.3 in) over just 7 days compared to August's 70 mm (2.8 in) over 12 days. Humidity levels are also slightly lower in April at 77%, compared to 83% in August. For more detailed information about April weather, you can check Perth weather in April.

When comparing the weather in August and May, a notable difference lies in the average temperatures. August has a lower average of 7°C (45°F), with temperatures ranging from a minimum of -3°C (27°F) to a maximum of 15°C (60°F). In contrast, May enjoys slightly warmer conditions, with an average temperature of 9°C (49°F) and a broader range from -2°C (30°F) to 20°C (68°F). Precipitation levels are also similar, with August receiving 70 mm (2.8 in) over 12 days, while May sees slightly higher rainfall at 77 mm (3.0 in) during 9 days. Both months share the same humidity level of 83%, contributing to the cool and damp atmosphere typical of late autumn and winter. For more detailed information, you can check Perth weather in May.

In comparing the weather of August and June, both months exhibit similar average temperatures, with averages around 7°C (45°F) and maximums reaching 15°C (60°F). However, August experiences slightly warmer minimum temperatures at -3°C (27°F) compared to June's minimum of -4°C (25°F). Precipitation levels are higher in August, with 70 mm (2.8 in) falling over 12 days, while June sees 55 mm (2.2 in) over just 9 days. Humidity remains consistent at 83% for both months, creating a consistently damp atmosphere. For a deeper dive into June's weather specifics, you can explore Perth weather in June.

In comparing the weather between July and August, both months exhibit quite similar conditions, with only slight variations in temperature and precipitation. August sees a minimum temperature of -3°C and an average of 7°C, while July's minimum is slightly cooler at -4°C, with an average of 6°C. The maximum temperature in August reaches 15°C, compared to July's peak of 14°C. Precipitation levels are also closely aligned, with August receiving 70 mm over 12 days and July a bit higher at 89 mm, also spread across 12 days. Humidity remains consistently high in both months, with August at 83% and July slightly higher at 84%. For more details on July weather, you can visit Perth weather in July.

In August, the weather is characterized by cooler temperatures, with a minimum of -3°C (27°F) and an average of 7°C (45°F), reaching a maximum of 15°C (60°F). The month experiences approximately 70 mm (2.8 in) of precipitation over 12 days, coupled with a relatively high humidity of 83%. In contrast, September brings slightly milder conditions, with the average temperature rising to 8°C (47°F) and a maximum reaching 21°C (69°F), while still maintaining a minimum of -3°C (26°F). Precipitation decreases slightly to 68 mm (2.7 in) over 11 days, and humidity also sees a small drop to 80%. For more detailed insights into the weather, you can visit Perth weather in September.

In comparing the weather between August and October, one can observe notable differences. August experiences colder temperatures, with a minimum of -3°C (27°F) and an average of 7°C (45°F), while October sees a milder minimum of -1°C (31°F) and an average rise to 11°C (52°F). In terms of maximum temperatures, August peaks at 15°C (60°F), whereas October can reach 25°C (78°F), making it feel significantly warmer. Both months receive approximately the same number of rainy days, around 12, but October has slightly higher precipitation at 85 mm (3.4 in) compared to August's 70 mm (2.8 in). Additionally, October exhibits lower humidity at 76%, compared to August’s more humid 83%. For those interested in exploring more about October weather, check out Perth weather in October.

In August, the weather features a colder temperature range with minimums around -3°C (27°F) and maximums reaching 15°C (60°F), averaging at 7°C (45°F). This month experiences relatively high humidity at 83% and a total precipitation of 70 mm (2.8 in) over 12 days. In contrast, November sees a milder temperature range with minimums at 0°C (32°F) and maximums climbing up to 28°C (83°F), averaging 13°C (56°F). Additionally, November has less precipitation, totaling 56 mm (2.2 in) across 9 days, accompanied by lower humidity at 76%. For more information on the weather trends in November, visit Perth weather in November.

In August, temperatures in Perth are notably cooler, with a minimum of -3°C (27°F) and an average of 7°C (45°F), while daytime highs only reach around 15°C (60°F). The month experiences substantial humidity at 83%, along with precipitation lasting over 12 days, totaling 70 mm (2.8 in). In contrast, December brings warmer conditions, with temperatures ranging from a minimum of 3°C (37°F) to a maximum of 33°C (92°F) and an average of 15°C (60°F). Despite similar precipitation levels at 71 mm (2.8 in), December's rain falls over just 7 days, and the humidity decreases to 71%. For a more detailed look at what to expect, check out Perth weather in December.

Compare Perth's Climate with Cities Worldwide

Conclusion: What to Expect From August Weather in Perth

As winter settles in, August in Perth brings a noticeable chill compared to other months, with temperatures often dipping into the lower range, making it one of the cooler times of the year. With an average temperature around 7°C, the city experiences a stark contrast to the warmer, sunnier summer months. Increased precipitation is another hallmark of August, with roughly 12 days of rain, leading to a rise in humidity levels that can feel quite brisk. The combination of lower temperatures and higher humidity may make for a damp experience, inviting residents and visitors alike to cozy indoors and enjoy the rich culture that Perth offers. For a more detailed understanding of the weather patterns throughout the year, including August's distinctive traits, check out Perth Climate.