September Weather in Kalamunda, Australia

Last updated: February 26, 2025

In Kalamunda, Australia, September brings a delightful transition into spring, with maximum temperatures reaching 30°C (87°F) and a comfortable average of 14°C (58°F). As the weather warms up, the nights can turn cooler, dropping to a brisk minimum of 4°C (39°F). This month typically sees 44 mm (1.7 in) of rainfall spread across approximately 7 days, contributing to a humidity level of 71% that ensures lush, vibrant surroundings. Enjoy the invigorating climate as nature awakens, offering ideal conditions for outdoor activities and exploration.

September Temperature in Kalamunda

In Kalamunda, Australia, September marks a delightful transition into spring, characterized by mild temperatures and a gentle uplift in warmth. With minimums settling around 4°C (39°F) and averages reaching 14°C (58°F), the month offers a refreshing reprieve from the cooler winter months. The maximum temperatures can soar to 30°C (87°F), hinting at the summer heat to come. This trend of gradually increasing warmth is evident as temperatures steadily climb from the chilly lows of winter, creating a pleasant backdrop for outdoor activities and blooming landscapes. As September unfolds, the shift from the crisp air of winter to the comfortable embrace of early spring envelops Kalamunda, inviting both residents and visitors to enjoy the vibrant natural beauty of the region.

September Weather in Kalamunda: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Kalamunda, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec757572665956555557616774
Data source: Temperature data for Kalamunda 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.

September Precipitation in Kalamunda

September in Kalamunda, Australia, experiences a moderate precipitation total of 44 mm (1.7 in), spread across 7 days. As the region transitions from winter to spring, this amount reflects a slight decrease from the wetter months of July and August, yet it remains higher than the dry months like October and November. Notably, September marks a shift in the weather patterns, as the prevalence of rain begins to lessen compared to the earlier months of the year, paving the way for the drier conditions that characterize the upcoming summer. The overall trend indicates that while September retains a significant amount of rainfall, it foreshadows the tapering off of the wetter season in Kalamunda.

September Precipitation Trends in Kalamunda

The chart displays monthly precipitation patterns in Kalamunda, with values for each month alongside September's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec29582621528911210044402510
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Kalamunda

September in Kalamunda, Australia marks a subtle transition in humidity levels as the winter chill gradually gives way to the warmth of spring. With humidity recorded at 71%, September shows a slight dip from the higher levels experienced in the preceding winter months, where June and July peaked at 77%. This reduction is a precursor to the more comfortable conditions ahead, as humidity continues to decline into October at 63%. Overall, September plays a pivotal role in the climatic shift, hinting at the drier days of summer while still retaining a touch of the cool, moist air typical of winter's tail end. The interplay of these humidity patterns creates a uniquely refreshing atmosphere, inviting residents and visitors alike to enjoy the beauty of the changing seasons.

September Average Humidity in Kalamunda

This chart illustrates the average monthly humidity levels in Kalamunda, with September's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how September's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec53%55%59%70%72%77%77%75%71%63%56%53%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Kalamunda

In September, Kalamunda experiences a UV Index of 8, categorized as very high, with a burn time of just 15 minutes. This marks a slight increase from the preceding winter months where the index hovered around 4, but still remains below the extreme levels seen in the summer. As the spring approaches, residents and visitors should be mindful of sun safety practices, particularly as the UV intensity begins to rise. With October bringing a jump back to an extreme UV Index of 11, it’s essential to stay informed. For more detailed information on UV levels throughout the year, check out Kalamunda UV Index.

Maximum UV Index Levels in Kalamunda for September

The chart shows the monthly maximum UV Index (UVI) for Kalamunda in September, 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.
JanFebMarAprMayJunJulAugSepOctNovDec141412964468111314
Data source: Kalamunda September 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.

September Sunshine in Kalamunda

September in Kalamunda, Australia, serves as a gentle bridge between winter's end and the bounty of springtime sunshine. With 294 hours of sunlight, it marks a significant upswing from the cooler months, showcasing a steady increase from the 278 hours in May and highlighting a trend of climbing daylight as the year progresses. This month not only beckons clearer skies but also heralds the promise of brighter days, setting the stage for an impressive leap to 327 hours in October. As each month unfolds, it's clear that the anticipation of warmer weather and longer days is palpable, making September a delightful prelude to summer's embrace.

Monthly Sunshine Duration in Kalamunda: September Highlighted

The September sunshine duration represents the total number of hours Kalamunda experiences direct sunlight during the month of September, excluding cloudy or obstructed periods. This chart compares the sunshine duration of September with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec308h314h322h287h278h257h267h283h294h327h351h384h
Data source: Kalamunda September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Kalamunda During September

As September rolls into Kalamunda, Australia, residents and visitors can expect a notable likelihood of sunny weather, with a cheerful 65% chance of sunshine illuminating the landscape. While the sunshine begins to wane from the vibrant days of January and February, where chances peak at 74% and 70% respectively, September offers a delightful reprieve from the colder months, particularly the gloomy July, which only enjoys 35% sunny days. This transitional month stands as a welcome return to warmer conditions, as it bridges the gap towards the sunnier months of October and November, both of which offer a renewed promise of 49% and 66% sunshine. Thus, while September may not boast the highest percentages, it certainly signals the gradual shift towards sunnier skies, making it a lovely time to embrace the outdoors.

Percentage of Sunny Days in September in Kalamunda

The chart illustrates the percentage of sunny days in Kalamunda throughout the year, with September 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 Kalamunda experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec74%70%60%54%46%53%35%55%65%49%66%78%
Data source: Kalamunda September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Kalamunda in September

As summer gives way to spring in Kalamunda, September marks a subtle shift in daylight duration, with 11 hours of daylight illuminating the landscape. Following the longest days of summer in January and February, where daylight stretches to a bright 13 hours, the progression into autumn brings a gradual reduction. The daylight hours dip to their lowest in the heart of winter between June and August, where they linger at 10 hours. However, as September unfolds, the days begin to lengthen again, hinting at the warmer months to come. This seasonal ebb and flow showcases Kalamunda's dynamic climate, inviting residents and visitors alike to enjoy the refreshing spring air and lengthening evenings.

Average Daylight Hours in Kalamunda for September

The chart illustrates the variation in daylight duration in Kalamunda throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec13h 57m13h 12m12h 14m11h 16m10h 28m10h 4m10h 16m10h 58m11h 53m12h 52m13h 44m14h 11m
Data source: Kalamunda daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Kalamunda

As September arrives in Kalamunda, the winds embody a gentle transition, averaging a moderate speed of 3.7 m/s (8 mph). This month sees a slight uptick from the cooler, calmer days of winter, where average winds hovered around 3.2 to 3.8 m/s. Interestingly, September serves as a bridge between the calm of winter and the slightly brisker conditions of October, hinting at the seasonal shift as wind speeds begin to slowly rise again. The overall trend showcases a gradual increase from the depths of winter towards the more dynamic weather of spring and summer, making September an ideal time to enjoy the subtle dance of breezes in this picturesque region.

Average September Wind Speed in Kalamunda

The chart displays monthly wind speed patterns in Kalamunda, with values for each month shown alongside September's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how September's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec5.34.73.83.33.53.24.63.83.7 m/s3.94.24.7
Data source: Kalamunda September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Kalamunda Compares to Other Months

The weather in Kalamunda changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of September's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Kalamunda and find detailed weather information for every month.

September and January present contrasting weather patterns. In September, temperatures range from a cool minimum of 4°C (39°F) to a maximum of 30°C (87°F), with an average of 14°C (58°F). Precipitation is relatively higher, totaling 44 mm (1.7 in) over about 7 days, while humidity hovers around 71%. In stark contrast, January exhibits a much warmer climate, featuring a minimum of 10°C (51°F) and soaring to a scorching maximum of 41°C (106°F), with an average temperature of 24°C (76°F). Precipitation significantly decreases to 29 mm (1.1 in) over just 1 day, and humidity drops to 52%. For a more detailed look at January weather, check out Kalamunda weather in January.

In comparing the weather between September and February, September experiences a broader range of temperatures with a minimum of 4°C (39°F) and a maximum of 30°C (87°F), leading to an average temperature of 14°C (58°F). In contrast, February typically is much warmer, with a minimum of 11°C (51°F) and reaching highs of 41°C (107°F), resulting in an average of 24°C (75°F). Additionally, September sees more days of precipitation (7 days) but less total rainfall (44 mm or 1.7 in) compared to February, which has less rainy days (3 days) yet higher precipitation totals (58 mm or 2.3 in). Humidity levels are also higher in September at 71%, while February enjoys a drier atmosphere with 55% humidity. For more detailed information, you can visit Kalamunda weather in February.

In September, the weather features a broader range of temperatures, with a minimum of 4°C and a maximum reaching up to 30°C, showcasing the transition from winter to the warmer months. The average temperature rests at 14°C, accompanied by a higher humidity level of 71% and about 44 mm of precipitation over 7 days.

In contrast, March tends to be warmer, with a minimum temperature of 8°C and an impressive maximum of 39°C, leading to an average temperature of 22°C. The month sees less rainfall, totaling only 26 mm across 4 days, and has a lower humidity level of 59%. For more details, you can check the Kalamunda weather in March.

When comparing the weather in September and April, we notice some notable differences. September typically features a wider temperature range, with minimums around 4°C (39°F) and maximums reaching up to 30°C (87°F), resulting in an average temperature of 14°C (58°F). The month experiences more precipitation, totaling 44 mm (1.7 in) over about 7 days and maintaining a humidity level of 71%.

In contrast, April presents slightly milder temperatures, with minimums at 6°C (42°F) and maximums soaring up to 37°C (99°F), leading to a higher average of 19°C (66°F). Rainfall is considerably lower at 21 mm (0.8 in) over just 3 days, with humidity remaining relatively stable at 70%. For more detailed insights on April weather, check out Kalamunda weather in April.

When comparing the weather in September and May, both months display mild temperatures with averages close to 14°C (58°F) in September and 15°C (60°F) in May. September features a slightly broader temperature range, with nighttime lows of 4°C (39°F) and daytime highs reaching up to 30°C (87°F). In contrast, May has a minimum temperature of 3°C (38°F) and peaks at 31°C (88°F). Rainfall is comparable in both months, with September receiving 44 mm (1.7 in) over 7 days and May experiencing a slightly higher 52 mm (2.0 in) over 6 days. Humidity remains consistent, with September at 71% and May at 72%, making both months feel quite similar in terms of moisture in the air. For more details on May weather, you can check Kalamunda weather in May.

When comparing the weather in September and June, notable differences emerge. September experiences a wider temperature range, with minimums of 4°C and maximums reaching up to 30°C, leading to an average of 14°C. In contrast, June sees slightly cooler temperatures overall, with a maximum of only 24°C and an average of 13°C. Precipitation is also higher in June, totaling 89 mm over 10 days, compared to September's 44 mm over 7 days. Humidity levels are relatively similar, but June is slightly more humid at 77%, versus September's 71%. For more detailed information about June weather, you can visit Kalamunda weather in June.

In comparing the weather of September and July, September typically experiences a broader temperature range, with minimums at 4°C (39°F) and maximums reaching 30°C (87°F), contributing to an average of 14°C (58°F). In contrast, July features slightly cooler conditions, with temperatures ranging from a minimum of 5°C (40°F) to a maximum of 23°C (73°F), resulting in a lower average of 13°C (55°F). Additionally, precipitation levels in July are significantly higher, with 112 mm (4.4 in) recorded over 14 days, compared to September's 44 mm (1.7 in) across 7 days. Humidity is also higher in July at 77%, compared to 71% in September. For more detailed insights, you can visit Kalamunda weather in July.

In comparing the weather of September and August, September tends to be slightly warmer, with average temperatures reaching 14°C (58°F) compared to August's 13°C (55°F). The maximum temperatures also see an increase, peaking at 30°C (87°F) in September versus 27°C (81°F) in August. Despite this warmth, September experiences less rainfall, with a total of 44 mm (1.7 in) compared to August's 100 mm (3.9 in), and fewer rainy days—7 in September versus 10 in August. Humidity levels are also slightly lower in September at 71%, compared to 75% in August. For more details on August weather specifically, visit Kalamunda weather in August.

In comparing the weather of September and October, we see a slight increase in average temperatures, with October averaging 16°C (62°F) compared to September's 14°C (58°F). October also features a higher maximum temperature of 35°C (94°F), contrasted with September's peak of 30°C (87°F). Precipitation levels remain similar, with October receiving 40 mm (1.6 in) over 6 days, while September saw 44 mm (1.7 in) over 7 days. Notably, humidity decreases from 71% in September to 63% in October, indicating a drier feel to the air as the month progresses. For more detailed insights, you can check out Kalamunda weather in October.

In September, the weather features a wider temperature range, with minimums falling to 4°C (39°F) and maximums reaching up to 30°C (87°F), while the average temperature sits at around 14°C (58°F). This month experiences more rainfall, totaling 44 mm (1.7 in) across about seven days, along with a higher humidity level of 71%. In contrast, November brings milder temperatures with a minimum of 7°C (46°F) and maximums peaking at 39°C (103°F), averaging 19°C (67°F). Rainfall decreases to 25 mm (1.0 in), occurring over just three days, and humidity drops significantly to 56%. For a detailed look at local weather conditions, you can check Kalamunda weather in November.

September and December present contrasting weather characteristics. In September, temperatures range from a minimum of 4°C (39°F) to a maximum of 30°C (87°F), with an average temperature of 14°C (58°F). The month experiences 44 mm (1.7 in) of precipitation over 7 days, contributing to a relatively high humidity level of 71%. In contrast, December brings much warmer temperatures, with a minimum of 7°C (45°F) and maximum reaching up to 42°C (107°F), resulting in a significantly higher average temperature of 23°C (74°F). Precipitation drops to just 10 mm (0.4 in) over 2 days, and humidity decreases to 53%. For more details on December weather, visit Kalamunda weather in December.

Compare Kalamunda's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Kalamunda

As September rolls in, Kalamunda experiences a delightful transition from the chill of winter to the warmth of spring. With temperatures reaching a comfortable maximum of 30°C (87°F) and a pleasant average of 14°C (58°F), the month invites residents and visitors alike to embrace the outdoors. Although there are a few rainy days, the overall humidity of 71% adds a refreshing touch to the air, making the early blooms even more vibrant. Unlike the drier and hot summer months that follow, September strikes a perfect balance, showcasing nature's revival. To explore more about how Kalamunda's weather trends throughout the year, visit Kalamunda Climate.