September Weather in Townsville, Australia

Last updated: February 26, 2025

In September, Townsville, Australia experiences a delightful transition into spring, characterized by maximum temperatures reaching 33°C (91°F) and an average of 22°C (73°F). The month enjoys a refreshing minimum temperature of 11°C (52°F), making it perfect for outdoor activities. Although there's a slight chance of rain, with a total precipitation of 12 mm (0.5 in) over just 3 days, the humidity stays around a comfortable 61%. Overall, September in Townsville offers a vibrant climate that invites residents and visitors alike to seize the day amid sunny skies and mild conditions.

September Temperature in Townsville

In September, Townsville experiences a delightful transition as temperatures begin to warm up, reflecting the approach of spring. The minimum temperature rises to a comfortable 11°C (52°F), while the average hovers around 22°C (73°F), providing a pleasant climate for outdoor activities. Daytime highs can reach up to 33°C (91°F), offering a taste of the hotter months ahead. This shift from the cooler winter months is noticeable, as September serves as a bridge between the mildness of earlier months and the increasing warmth of October and November, making it an ideal time for both locals and visitors to explore the natural beauty and vibrant lifestyle Townsville has to offer.

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

The chart illustrates September temperature patterns in Townsville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec818281777268687072778082
Data source: Temperature data for Townsville 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 Townsville

In September, Townsville experiences a notable dry spell, with only 12 mm (0.5 in) of precipitation falling over just three days. This marks a continuation of the trend from August, where rainfall was minimal, contributing to a stark contrast with the wetter months earlier in the year, like January and February, which see much more substantial totals of 290 mm (11.4 in) and 299 mm (11.8 in) respectively. As the region shifts into spring, the lighter precipitation suggests a gradual transition, hinting at the drier conditions that typically characterize the latter part of the year, while still leaving room for the occasional surprise shower. With such low rainfall, September stands as one of the driest months, paving the way for a return to slightly higher precipitation levels in October.

September Precipitation Trends in Townsville

The chart displays monthly precipitation patterns in Townsville, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2902992286453211612123042127
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Townsville

In September, Townsville, Australia, experiences a noticeable decline in humidity, recording 61%—the lowest level for the month across the year. This dip marks a pivotal transition from the typically mucky conditions of winter. As temperatures begin to rise, the air retains less moisture, providing a refreshing respite after the more humid months of January through March, where humidity peaks at an average of 81%. The trend suggests a gradual easing into spring, with October's humidity slightly rising to 62%, hinting at the return of warmer, more humid days ahead. Thus, September not only serves as a turning point but also offers a brief pause before the humid summer settles back in.

September Average Humidity in Townsville

This chart illustrates the average monthly humidity levels in Townsville, 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.
JanFebMarAprMayJunJulAugSepOctNovDec76%78%81%76%72%71%63%67%61%62%63%69%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Townsville

September in Townsville, Australia, sees a UV Index of 13, placing it in the extreme exposure category with a burn time of just 10 minutes. This month continues the trend of high UV exposure typical for the region, following August’s Index of 11. As the year progresses towards October, the UV levels remain consistently high, indicating a robust sun intensity that demands precaution. With a pattern of extreme UV conditions prevalent throughout the year, it's crucial for residents and visitors to stay informed and protected from harmful sun exposure. For detailed insights about UV levels throughout the year, visit Townsville UV Index.

Maximum UV Index Levels in Townsville for September

The chart shows the monthly maximum UV Index (UVI) for Townsville 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.
JanFebMarAprMayJunJulAugSepOctNovDec161614129781113141516
Data source: Townsville 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 Townsville

As September unfolds in Townsville, Australia, the sun graces the skies for an impressive 300 hours, marking it as one of the brightest months of the year. This vibrant leap into sunshine continues a delightful trend observed over the past several months, with daylight hours steadily increasing since the cooler midyear months. Notably, August already set a remarkable stage with 298 hours, and the trend shows no sign of waning. As October approaches, the sunshine promises to intensify even further, reaching 320 hours, which invites residents and visitors alike to bask in the warm embrace of spring. With each month building on the last, September becomes a radiant highlight in Townsville’s sunny calendar, ushering in a season of outdoor adventures and vibrant community activities.

Monthly Sunshine Duration in Townsville: September Highlighted

The September sunshine duration represents the total number of hours Townsville 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.
JanFebMarAprMayJunJulAugSepOctNovDec238h263h283h280h273h259h276h298h300h320h330h330h
Data source: Townsville September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Townsville During September

In Townsville, Australia, September marks a significant transition in weather patterns, boasting a 58% chance of sunny days. This figure reflects a steady increase from the earlier months, demonstrating a shift toward more favorable conditions after the winter months. The city's weather in September is relatively bright compared to the earlier part of the year, with sun chances rising notably from a modest 24% in February and fluctuating throughout the winter months. As spring blooms, so does the likelihood of enjoying the outdoors, making September an appealing choice for sun-seekers in this vibrant coastal town. While the chances remain high, they are just shy of peak summer months like October and July, setting the stage for delightful late-winter sun.

Percentage of Sunny Days in September in Townsville

The chart illustrates the percentage of sunny days in Townsville 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 Townsville experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec19%24%44%44%68%49%62%62%59%61%39%52%
Data source: Townsville September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Townsville in September

As September unfolds in Townsville, Australia, daylight duration maintains a steady rhythm, offering around 11 hours of light each day. This month marks a continuation of the slight decline in daylight that began in April, reflecting the transition toward the shorter days of winter. However, as the days grow cooler, the approach of October promises a gradual return to longer daylight, with daylight hours expected to increase once again. Notably, the seasonal pattern reveals a cyclical dance, where summer months boast up to 13 hours of daylight, while the winter months retreat to around 10 hours. Thus, September serves as a pivotal moment of balance—nestled between the brightness of spring and the snug embrace of winter.

Average Daylight Hours in Townsville for September

The chart illustrates the variation in daylight duration in Townsville throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec13h 8m12h 42m12h 10m11h 37m11h 11m10h 58m11h 4m11h 27m11h 58m12h 31m13h13h 15m
Data source: Townsville daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Townsville

As September rolls in, Townsville experiences a delightful uptick in average wind speed, reaching 3.2 m/s (7 mph), making it one of the breeziest months of the year. This slight increase from the quieter winter months—where July saw winds dip to just 2.3 m/s (5 mph)—signals a transition that invigorates the vibrant coastal atmosphere. Following a moderate August, with winds at 2.9 m/s, September sets the stage for mild yet refreshing breezes that often accompany the change of seasons. Interestingly, this month ties with November for the top wind speed, suggesting that the spring months in Townsville not only bring warmth but also a lively, invigorating air that welcomes both locals and visitors alike to enjoy the picturesque surroundings.

Average September Wind Speed in Townsville

The chart displays monthly wind speed patterns in Townsville, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.12.52.63.12.82.52.32.93.2 m/s2.93.22.7
Data source: Townsville September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Townsville Compares to Other Months

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

In September, the weather is quite mild, with temperatures ranging from a minimum of 11°C (52°F) to a comfortable average of 22°C (73°F), peaking at 33°C (91°F). Precipitation is relatively minimal, averaging only 12 mm (0.5 in) over three days, and the humidity sits at a moderate 61%. In contrast, January brings much warmer conditions, featuring minimum temperatures of 22°C (72°F) and averaging around 27°C (82°F), with highs reaching up to 38°C (101°F). However, January is significantly wetter, with 290 mm (11.4 in) of rain over 15 days, and humidity levels climbing to 76%. For more details on the weather in this summer month, check out Townsville weather in January.

September and February showcase distinctly different weather patterns. In September, temperatures range from a comfortable minimum of 11°C (52°F) to a high of 33°C (91°F), with an average temperature of 22°C (73°F). The month sees relatively low precipitation at 12 mm (0.5 in) over just 3 days, along with a humidity level of 61%. In contrast, February is significantly warmer, with minimum temperatures of 20°C (69°F) and maximums peaking at 39°C (102°F), averaging around 28°C (82°F). This month experiences much heavier rainfall, accumulating 299 mm (11.8 in) over 17 days and higher humidity at 78%. For a more detailed look at February's weather patterns, you can check out Townsville weather in February.

When comparing the weather in September and March, it is evident that March tends to be significantly warmer and wetter. September offers a mild climate with temperatures ranging from a minimum of 11°C to a maximum of 33°C, alongside relatively low precipitation of 12 mm over just three days and humidity around 61%. In stark contrast, March experiences much higher temperatures, averaging 27°C and peaking at 38°C, while also receiving substantial rainfall of 228 mm across 17 days, resulting in higher humidity levels of 81%. For a more detailed look at what to expect, visit Townsville weather in March.

In comparing the weather between September and April, we can observe notable differences in temperature and precipitation. September experiences a milder average temperature of 22°C (73°F), with a maximum of 33°C (91°F) and relatively low precipitation of 12 mm (0.5 in) over just 3 days. In contrast, April tends to be warmer with an average temperature of 25°C (78°F) and a higher maximum of 35°C (95°F). Additionally, April sees significantly more rainfall, accumulating 64 mm (2.5 in) across 9 days, along with increased humidity levels at 76%. For a more detailed look at the conditions, check out Townsville weather in April.

In September, the weather features a comfortable average temperature of 22°C (73°F), with daytime highs reaching up to 33°C (91°F) and cooler nights averaging around 11°C (52°F). The month sees relatively low precipitation of 12 mm (0.5 in) over just three days, resulting in a humidity level of 61%. In contrast, May shares the same average temperature of 22°C (73°F), but experiences slightly cooler maximum temperatures of 31°C (87°F) and more rainfall, totaling 53 mm (2.1 in) across six days. The humidity in May is higher at 72%, making it feel a bit more muggy. For more details, you can check Townsville weather in May.

In comparing the weather between September and June, it’s evident that September tends to be warmer, with average temperatures reaching 22°C (73°F) and highs of up to 33°C (91°F), compared to June's average of 20°C (68°F) and a maximum of 28°C (82°F). While September experiences less precipitation at 12 mm (0.5 in) over three days, June sees a bit more rain, totaling 21 mm (0.8 in) over four days. Additionally, September generally has lower humidity at 61%, making it feel less muggy than June, which has a humidity level of 71%. For more details, you can visit Townsville weather in June.

In comparing the weather of September with July, September tends to be warmer overall, with an average temperature of 22°C (73°F) compared to July's 20°C (68°F). Both months see similar humidity levels, with September at 61% and July slightly higher at 63%. Interestingly, the maximum temperatures in September can reach up to 33°C (91°F), while July peaks at 30°C (86°F). Precipitation is slightly less in September, with only 12 mm (0.5 in) over three days, compared to 16 mm (0.6 in) in July, which also experiences rain on three days. For more details, check out Townsville weather in July.

In comparing the weather of September and August, September presents slightly warmer temperatures, with a minimum of 11°C (52°F) and an average of 22°C (73°F), compared to August's minimum of 9°C (49°F) and average of 21°C (70°F). Both months experience the same amount of precipitation at 12 mm (0.5 in), but September sees this spread over three days, whereas August has it concentrated into just one day. Additionally, September has a lower humidity level at 61%, while August's humidity stands at 67%. For more information on the weather in August, you can check Townsville weather in August.

September in Townsville experiences a comfortable range of temperatures with a minimum of 11°C (52°F) and an average high of 33°C (91°F), accompanied by relatively low precipitation of 12 mm over just 3 days. The humidity averages at 61%, creating a pleasant atmosphere for outdoor activities. In contrast, October sees a slight increase in temperature, with minimums around 16°C (62°F) and an average high of 34°C (94°F). However, it also brings increased rainfall, totaling 30 mm over 5 days, while maintaining a similar humidity level of 62%. These changes reflect a transition to a warmer and wetter climate as the month progresses. For more insights on the weather, check out Townsville weather in October.

In September, the weather typically features a comfortable temperature range, with minimums around 11°C (52°F) and maximums peaking at 33°C (91°F). The overall average temperature is a pleasant 22°C (73°F), accompanied by relatively low precipitation totaling just 12 mm (0.5 in) over about 3 days, and a humidity level of 61%.

Conversely, November sees a notable increase in temperatures, with minimums rising to 19°C (67°F) and maximums soaring to a sweltering 41°C (106°F). The average temperature in November is a warmer 26°C (80°F). However, this month also experiences increased rainfall, with 42 mm (1.7 in) of precipitation spread over 8 days and slightly higher humidity at 63%.

For more detailed information on how the weather unfolds in November, you can visit Townsville weather in November.

September and December exhibit notable differences in weather patterns. In September, temperatures range from a minimum of 11°C (52°F) to a maximum of 33°C (91°F), with an average of 22°C (73°F). This month experiences relatively low precipitation, totaling just 12 mm (0.5 in) over three days, and a humidity level of 61%. In contrast, December brings warmer temperatures, with a minimum of 21°C (71°F), an average of 28°C (82°F), and a maximum of 37°C (99°F). However, it also experiences significantly higher precipitation at 127 mm (5.0 in) across 13 days, coupled with increased humidity at 69%. For more details on how the weather unfolds in December, you can check out Townsville weather in December.

Compare Townsville's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Townsville

As September rolls in, Townsville experiences a delightful shift in weather that sets the stage for the upcoming warmer months. With comfortable daytime temperatures and a pleasant average that allows for outdoor exploration, this month stands out as a perfect blend of warmth without the oppressive heat. The relatively low precipitation of just a few days adds to the enjoyment, making it ideal for adventures under the sun. Overall, September serves as a gentle transition, offering a brief respite before the hotter months ahead. For more detailed insights into the seasonal changes, visit Townsville Climate.