September Weather in Geraldton, Australia

Last updated: February 26, 2025

In September, Geraldton, Australia, experiences a pleasant blend of warmth and mildness, with temperatures reaching a maximum of 28°C (83°F) and averaging 17°C (63°F). The month begins to hint at the spring season, as the minimum temperature can drop to 11°C (52°F). Despite the generally favorable conditions, the area sees about 17 mm (0.7 in) of precipitation over 4 days, contributing to a humidity level of 67%. This combination creates an ideal environment for outdoor activities while also showcasing the natural beauty of the region as it transitions into the warmer months.

September Temperature in Geraldton

In September, Geraldton begins to shed the chill of winter, with temperatures gradually warming as the month progresses. The average temperature rises to a pleasant 17°C (63°F), while the maximum can reach a comfortable 28°C (83°F). Nights, however, remain relatively brisk with a minimum of 11°C (52°F). This transitional month heralds a shift from the cooler days of August, setting the stage for the more temperate conditions of spring. Overall, September is characterized by moderate warmth and an inviting atmosphere, perfect for outdoor activities amidst the blooming landscape.

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

The chart illustrates September temperature patterns in Geraldton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec757575726864626163656973
Data source: Temperature data for Geraldton 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 Geraldton

In September, Geraldton experiences a modest rainfall of 17 mm (0.7 in), marking a slight increase from the dry winter months. With precipitation occurring over four days, this transition into spring brings a refreshing change, though it remains significantly lower than the heavier rains of June and July, each recording 58 mm (2.3 in). This pattern points to a gradual upward trend in precipitation as the year progresses, paving the way for the warmer months ahead. As spring unfolds, the relatively higher rainfall in September often rejuvenates the landscape, highlighting its role as a bridge between the cooler, wetter winter and the hotter, drier summer.

September Precipitation Trends in Geraldton

The chart displays monthly precipitation patterns in Geraldton, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1122311265858501718145
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Geraldton

In September, Geraldton experiences a slight dip in humidity, stabilizing at 67%, which marks a transition towards the warmer months ahead. Over the course of the year, the region's humidity levels fluctuate, peaking in the summer months (January and February) at around 73-74% and gradually descending to their lowest in the cooler winter season (July and August) with 66%. This pattern illustrates Geraldton's characteristic climate, where the humidity begins to rise again in October, hinting at the impending summer heatwave. The gradual shift reflects the area's coastal influence, where the interplay of moisture in the air contributes to its vibrant ecosystem and pleasant living conditions.

September Average Humidity in Geraldton

This chart illustrates the average monthly humidity levels in Geraldton, 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.
JanFebMarAprMayJunJulAugSepOctNovDec73%74%73%75%69%70%66%66%67%70%72%73%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Geraldton

In September, Geraldton experiences a UV Index of 9, categorizing the exposure level as very high, with a burn time of just 15 minutes. This marks a shift from the milder summer months, where indices peaked at an extreme of 15 in January. As temperatures begin to moderate, the trend indicates a gradual decrease in UV intensity compared to the heart of summer, although caution remains crucial as the sun's rays can still cause harm in a short time. This pattern foreshadows an increase in UV levels once again in October, where the index will escalate back to 12. As always, it's essential to stay informed about local UV conditions, especially in outdoor settings. For more insights on UV exposure in Geraldton, visit Geraldton UV Index.

Maximum UV Index Levels in Geraldton for September

The chart shows the monthly maximum UV Index (UVI) for Geraldton 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.
JanFebMarAprMayJunJulAugSepOctNovDec1514121075579121414
Data source: Geraldton 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 Geraldton

As September unfolds in Geraldton, Australia, the region basks in 304 hours of glorious sunshine, marking a delightful interlude between the cooler months and the approaching summer. This month reflects a notable increase in sunshine compared to the preceding winter, showcasing a gradual ascent that continues into the warmer months. Following the steady rise from 287 hours in May to this month’s bounty, it hints at a seasonal rhythm that climaxes with October’s impressive 336 hours. With each passing day in September, locals and visitors alike are reminded of the invigorating energy that sunlight brings, setting the stage for vibrant spring days and the promise of summer adventures on the horizon.

Monthly Sunshine Duration in Geraldton: September Highlighted

The September sunshine duration represents the total number of hours Geraldton 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.
JanFebMarAprMayJunJulAugSepOctNovDec300h312h321h293h287h273h282h296h304h336h347h375h
Data source: Geraldton September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Geraldton During September

In September, Geraldton, Australia, enjoys a delightful 77% chance of sunny weather, marking it as one of the sunniest months of the year. Following the highs of August, which boasts a 72% likelihood, September's increase hints at the region's transition into spring, where longer days and more stable weather patterns often prevail. This trend continues into warmer months, with October maintaining a healthy 66% sun probability, while the sunniest stretch peaks in November at 82%. This consistent sun-filled forecast makes September an enticing time for outdoor activities and enjoyment of the stunning coastal views that Geraldton has to offer.

Percentage of Sunny Days in September in Geraldton

The chart illustrates the percentage of sunny days in Geraldton 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 Geraldton experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec71%67%76%57%58%67%43%72%77%66%83%76%
Data source: Geraldton September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Geraldton in September

As September arrives in Geraldton, Australia, daylight hours continue to exhibit a gentle transition reflecting the waning winter. With 11 hours of daylight, this month mirrors August's brightness, suggesting the subtle shift towards longer days as spring approaches. A noteworthy trend emerges as the days gradually extend from winter's 10-hour minimum in the colder months, creating a rhythm that peaks in the summer with up to 13 hours of daylight in January and February. As we move towards October, the pattern suggests an increasing ambiance of warmth and light that encourages outdoor activities and the blooming of nature, captivating the spirit of the region.

Average Daylight Hours in Geraldton for September

The chart illustrates the variation in daylight duration in Geraldton throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec13h 43m13h 4m12h 13m11h 22m10h 40m10h 19m10h 29m11h 6m11h 54m12h 46m13h 32m13h 55m
Data source: Geraldton daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Geraldton

As September arrives in Geraldton, Australia, the average wind speed settles at a refreshing 5.8 m/s (13 mph), slightly bouncing back from the calmer summer months. This marks a trend towards the breezier conditions characteristic of the approaching spring, following a gradual decline from January's robust 7.0 m/s (16 mph). Interestingly, the winds in September often carry a touch of invigorating warmth, setting the stage for the vibrant energy of the season ahead. The month of transition shows the first hints of an upward trajectory, paving the way for stronger gusts that follow in October and November, heralding the dynamic weather changes typical of the region.

Average September Wind Speed in Geraldton

The chart displays monthly wind speed patterns in Geraldton, 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.
JanFebMarAprMayJunJulAugSepOctNovDec7.07.05.85.95.55.36.25.45.8 m/s6.56.67.2
Data source: Geraldton September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Geraldton Compares to Other Months

The weather in Geraldton 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 Geraldton and find detailed weather information for every month.

September and January weather in Geraldton exhibit distinct characteristics that reflect the transition from late winter to the peak of summer. In September, temperatures range from a minimum of 11°C (52°F) to a maximum of 28°C (83°F), with an average of 17°C (63°F). Rainfall is relatively moderate at 17 mm (0.7 in) over four days, and humidity averages around 67%. In contrast, January experiences significantly warmer temperatures, with a minimum of 17°C (63°F) and soaring to a maximum of 37°C (98°F), averaging 24°C (75°F). Precipitation diminishes to just 11 mm (0.4 in) over a single day, while humidity rises slightly to 73%. For more details on January weather, visit Geraldton weather in January.

In comparing the weather of September and February, it's clear that February experiences significantly warmer temperatures, with average highs reaching 37°C (99°F), compared to September's max of 28°C (83°F). Min temperatures are also higher in February, starting at 18°C (64°F), while September's minimum is milder at 11°C (52°F). Both months have similar precipitation levels, with February averaging 22 mm (0.9 in) over three days and September at 17 mm (0.7 in) over four days. Additionally, February's humidity is slightly higher at 74%, compared to September's 67%. For more specifics on February weather, you can refer to this link: Geraldton weather in February.

In comparing the weather of September and March, we observe a significant shift in temperatures and conditions. September experiences cooler temperatures, with averages ranging from a minimum of 11°C (52°F) to a maximum of 28°C (83°F), along with a moderate amount of precipitation at 17 mm (0.7 in) spread over four days. In contrast, March presents a much warmer climate, characterized by higher averages of 17°C (62°F) to 34°C (93°F) and minimal rainfall of just 3 mm (0.1 in) over the course of the month. Humidity levels are slightly higher in March at 73%, compared to 67% in September. For additional insights, you can check Geraldton weather in March.

September and April exhibit distinct weather patterns. September boasts a cooler temperature range, with minimums around 11°C (52°F), average highs of 17°C (63°F), and maximums reaching 28°C (83°F). The month sees about 17 mm (0.7 in) of rainfall over four days, contributing to a relatively comfortable humidity level of 67%. In contrast, April experiences warmer temperatures, with minimums of 14°C (58°F), average highs of 22°C (72°F), and maximums soaring to 34°C (94°F). This month has less precipitation, totaling only 11 mm (0.4 in) over just one day, yet it boasts a slightly higher humidity of 75%. For more detailed weather specifics, visit Geraldton weather in April.

In comparing the weather of September and May, both months share similar temperature ranges, with maximums reaching up to 28°C (83°F). However, May boasts a slightly warmer average temperature of 20°C (68°F) compared to September's 17°C (63°F). Precipitation is notably higher in May, with 26 mm (1.0 in) of rain over four days, compared to 17 mm (0.7 in) in September during the same number of days. Additionally, humidity levels are slightly elevated in May at 69%, compared to 67% in September. For a more detailed look at May weather, check out Geraldton weather in May.

When comparing the weather in September and June, September offers slightly warmer average temperatures, with daily highs reaching up to 28°C (83°F) compared to June's maximum of 26°C (80°F). Both months share a minimum temperature of 11°C (52°F), but September typically experiences less precipitation, averaging only 17 mm (0.7 in) over about 4 days, while June sees more considerable rainfall at 58 mm (2.3 in) over approximately 7 days. Additionally, humidity levels are quite similar, with September at 67% and June slightly higher at 70%. For a detailed look at June conditions, you can check Geraldton weather in June.

In comparing the weather of September and July, September tends to be notably warmer, with maximum temperatures reaching up to 28°C (83°F) compared to July's highest of 24°C (76°F). Both months share a minimum temperature of 11°C (52°F) and an average temperature around 17°C (63°F), but September enjoys more sunny days, featuring only 17 mm (0.7 in) of precipitation across 4 days, whereas July experiences significantly higher rainfall at 58 mm (2.3 in) over 9 days. Additionally, humidity levels are fairly similar, with September at 67% and July slightly lower at 66%. For more details on the specifics of July weather, you can check Geraldton weather in July.

In comparing the weather of September and August, September tends to be slightly warmer, boasting an average temperature of 17°C (63°F) compared to August's average of 16°C (62°F). While both months experience mild minimum temperatures, September’s maximum reaches 28°C (83°F), outpacing August’s peak of 26°C (78°F). Precipitation is significantly lower in September, with only 17 mm (0.7 in) over 4 days, contrasted with August's 50 mm (2.0 in) across 9 days. Humidity levels remain similar, with September at 67% and August at 66%. For a more in-depth look at August’s climate, visit Geraldton weather in August.

In September, the weather features a minimum temperature of 11°C (52°F) and an average of 17°C (63°F), with a maximum of 28°C (83°F). The month sees about 17 mm (0.7 in) of precipitation over four days, and the humidity averages around 67%. In contrast, October experiences slightly warmer temperatures with a minimum of 12°C (54°F) and an average of 19°C (66°F), peaking at a maximum of 31°C (88°F). The precipitation remains similar at 18 mm (0.7 in) over four days, but humidity increases to 70%. For more specific details about October weather, you can visit Geraldton weather in October.

September and November exhibit subtle yet notable differences in weather patterns. September tends to be cooler with an average temperature of 17°C (63°F), while November enjoys slightly milder conditions, averaging 20°C (69°F). Interestingly, November can reach a higher maximum temperature of 33°C (92°F), making it warmer overall compared to September's peak of 28°C (83°F). Precipitation is also minimal in both months, with September experiencing 17 mm (0.7 in) over four days, whereas November sees just 14 mm (0.6 in) across only two days. Additionally, humidity levels rise slightly from September's 67% to November's 72%. For more detailed insights, you can check Geraldton weather in November.

In September, the weather tends to be milder with temperatures ranging from a minimum of 11°C (52°F) to a maximum of 28°C (83°F), averaging around 17°C (63°F). The month sees about 17 mm (0.7 in) of precipitation spread across 4 days, and humidity levels are around 67%. In contrast, December experiences much warmer temperatures, with minimums of 15°C (58°F) and maximums soaring up to 37°C (98°F), averaging at 23°C (73°F). Notably, December has significantly less precipitation, with only 5 mm (0.2 in) over just 1 day, while humidity slightly increases to 73%. This shift highlights a transition from the cooler, wetter conditions of September to the hot, dry weather typical of December. For more detailed insights, check out Geraldton weather in December.

Compare Geraldton's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Geraldton

As September unfolds in Geraldton, the transition from winter to spring brings a delightful warmth to the region. Unlike the cooler months preceding it, this period showcases milder temperatures that average a comfortable 17°C. Although occasional rain graces the landscape with about 17 mm of precipitation over just four days, the 67% humidity adds a subtle embrace to the air. The month’s maximum highs can reach up to 28°C, ensuring that days are pleasantly inviting, making it a great time to experience the burgeoning beauty of nature. For a deeper understanding of how September’s charm fits within the broader climatic patterns, explore Geraldton Climate.