September Weather in Kumeu, New Zealand

Last updated: August 31, 2025

September in Kumeu, New Zealand ushers in the arrival of spring with temperatures ranging from a maximum of 19°C (67°F) to a minimum of 8°C (46°F), averaging around 13°C (56°F). This month is characterized by its notable rainfall, with 116 mm (4.6 in) of precipitation spread over 16 days, contributing to the lush greenery of the region. The humidity levels hover around 80%, adding a fresh, vibrant feel to the air as nature awakens from winter slumber. Whether you're exploring the countryside or enjoying local festivals, September offers a refreshing blend of warmth and occasional drizzles, perfect for outdoor adventures.

September Temperature in Kumeu

In Kumeu, New Zealand, September marks a transitional phase as winter recedes and spring begins to take hold. The temperatures during this month exhibit a gentle upward trend, with minimums averaging around 8°C (46°F), while **maximums reach a pleasant 19°C (67°F). The average temperature steadies at 13°C (56°F), indicating a refreshing shift from the cooler months of July and August. This gradual warming invites residents and visitors alike to embrace outdoor activities, as the crisp air is complemented by increasing sunshine, offering a delightful preview of the springtime beauty that lies ahead.

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

The chart illustrates September temperature patterns in Kumeu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kumeu, September typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec686967646057555556596266
Data source: Temperature data for Kumeu 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 Kumeu

In September, Kumeu experiences a significant amount of rainfall, with 116 mm (4.6 in) recorded over 16 days. This marks a continuation of the wetter months that began in August, where precipitation peaked at 130 mm. As winter transitions into spring, the frequency of rainy days remains high, suggesting a lingering influence of the colder months. Compared to the preceding months, September's precipitation is slightly lower than August's but still maintains a robust trend. This pattern highlights Kumeu's propensity for well-distributed rainfall as the region gears up for the warmer spring season ahead.

September Precipitation Trends in Kumeu

The chart displays monthly precipitation patterns in Kumeu, 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. In Kumeu, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec55758510495111120130116858071
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Kumeu

As September rolls into Kumeu, New Zealand, the humidity levels settle at a comfortable 80%, reflecting a slight easing from the peaks experienced in the mid-winter months. The trend throughout the year showcases a fluctuating humidity pattern, with a noticeable rise from 74% in March and April to a high of 83% in July. Interestingly, as spring approaches, humidity stabilizes, hovering around 80% from September through to November, creating a pleasant and consistent atmosphere. This consistency bodes well for outdoor activities, heralding the transition into warmer, more inviting weather.

September Average Humidity in Kumeu

This chart illustrates the average monthly humidity levels in Kumeu, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Kumeu is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec79%76%74%75%80%82%83%81%80%80%80%78%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Kumeu

In September, Kumeu, New Zealand experiences a UV Index of 7, categorizing it as high exposure with a burn time of just 25 minutes. This marks a noticeable increase from the more moderate levels observed in the winter months of June and July, where the UV Index dipped to 3. As spring begins to unfold, residents and visitors can expect a shift in UV intensity, signaling the importance of sun safety as outdoor activities ramp up. The trend indicates that while the UV Index remains manageable compared to the extreme levels seen in summer months, it's crucial to remain vigilant. For more details on the UV levels throughout the year, check out the full report at Kumeu UV Index.

Maximum UV Index Levels in Kumeu for September

The chart shows the monthly maximum UV Index (UVI) for Kumeu 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. In September, the maximum UV index in Kumeu typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141410743357101113
Data source: Kumeu 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 Kumeu

As September ushers in the arrival of spring in Kumeu, New Zealand, the days gradually lengthen, offering an impressive 262 hours of sunshine. This marks a notable increase compared to the winter months, highlighting a shift towards warmer, more vibrant days. Following the preceding months of April through August, where sunshine hours lingered around the 200s, September's rays signal the promise of brighter days ahead. The trend is clear: as the year draws to a close, the sunshine continues to intensify, culminating in the peak of summer with December's radiant 347 hours. This transition invites residents and visitors alike to embrace the outdoors, relishing in the revitalizing warmth of Kumeu’s springtime sun.

Monthly Sunshine Duration in Kumeu: September Highlighted

The September sunshine duration represents the total number of hours Kumeu 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.
JanFebMarAprMayJunJulAugSepOctNovDec285h285h290h237h218h189h216h237h262h286h313h347h
Data source: Kumeu September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Kumeu During September

As September rolls around in Kumeu, New Zealand, the likelihood of sunny weather dips slightly to 38%. This marks a continuation of the relatively cool trend observed since mid-winter, with only July and August experiencing a marginally higher chance of sunshine. While September's sunshine potential stands better than the following months like October and December, it mirrors the downward trajectory from the late summer months. As the year progresses, optimism for sunny days begins to wane, suggesting that outdoor plans may benefit from a sprinkle of flexibility during this transitional period.

Percentage of Sunny Days in September in Kumeu

The chart illustrates the percentage of sunny days in Kumeu 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 Kumeu experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec48%43%43%39%40%37%42%39%38%29%36%25%
Data source: Kumeu September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Kumeu in September

As September unfolds in Kumeu, New Zealand, the daylight duration signals a transitional phase, featuring approximately 11 hours of sunlight each day. Following the winter months of July and August, which offered their shortest days at 9 to 10 hours, September marks a slight resurgence in daylight. This gradual increase continues into October, where the sun shines for an inviting 13 hours. With each month, Kumeu experiences a rhythmic ebb and flow in daylight, illustrating the enchanting shift from the depths of winter to the early whispers of spring. This trend not only enhances outdoor activities but also invigorates the landscape, inviting residents and visitors alike to revel in the gradually brightening days.

Average Daylight Hours in Kumeu for September

The chart illustrates the variation in daylight duration in Kumeu throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec14h 20m13h 26m12h 17m11h 7m10h 9m9h 40m9h 54m10h 44m11h 51m13h 1m14h 3m14h 36m
Data source: Kumeu daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Kumeu

As September winds sweep through Kumeu, New Zealand, they carry just a hint of summer's approach, with an average speed of 6.3 m/s (14 mph). This month marks a slight decline from August's brisk 6.5 m/s but remains robust compared to the earlier months of the year. In the transition from winter’s invigorating gusts in July and August, where winds peaked at 5.9 m/s and 6.5 m/s respectively, September's breeze hints at a calming shift. As the landscape begins to bloom with the upcoming spring, Kumeu’s winds offer a refreshing counterbalance, paving the way for warmer days ahead while still celebrating the last whispers of winter's chill.

Average September Wind Speed in Kumeu

The chart displays monthly wind speed patterns in Kumeu, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.94.54.54.95.45.45.96.56.3 m/s5.94.45.3
Data source: Kumeu September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Kumeu Compares to Other Months

Weather in Kumeu varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Kumeu, focusing on differences in temperature, rainfall, humidity, and UV levels.

In comparing the weather between September and January, September tends to be cooler with temperatures ranging from a minimum of 8°C (46°F) to a maximum of 19°C (67°F) and an average of 13°C (56°F). The month experiences significant rainfall, with 116 mm (4.6 in) of precipitation spread over 16 days, resulting in a relatively humid atmosphere at 80%. In contrast, January enjoys warmer temperatures, with a minimum of 14°C (58°F) and a maximum of 25°C (78°F), averaging around 20°C (68°F). Additionally, January sees much less rainfall at 55 mm (2.2 in) over only 6 days, coupled with a similar humidity level of 79%. For more detailed insights about January weather, you can check Kumeu weather in January.

When comparing the weather in September and February, there are notable differences in both temperature and precipitation patterns. September typically experiences cooler temperatures, with minimums around 8°C (46°F) and highs peaking at 19°C (67°F), while February enjoys warmer conditions, with minimum temperatures of 14°C (58°F) and maximums reaching up to 26°C (79°F). Additionally, September sees more rainfall, averaging 116 mm (4.6 in) across 16 days, compared to February's 75 mm (2.9 in) over just 8 days. Humidity levels are quite similar, remaining around 76% in February and 80% in September. For a more detailed look at February's climate, you can explore Kumeu weather in February.

September and March present contrasting weather patterns, showcasing the transition between seasons. In September, temperatures range from a cooler minimum of 8°C (46°F) to a mild maximum of 19°C (67°F), with an average of 13°C (56°F). The month experiences significant rainfall, totaling 116 mm (4.6 in) over 16 days, coupled with high humidity at 80%. In contrast, March sees warmer temperatures, with a minimum of 14°C (57°F) and a maximum reaching 24°C (76°F), resulting in a pleasant average of 20°C (67°F). Additionally, precipitation in March is lower, at 85 mm (3.3 in) across 11 days, and humidity dips to 74%. For a closer look at the weather specifics, check Kumeu weather in March.

September and April showcase distinct weather patterns, highlighting the transition from early autumn to late spring. In September, temperatures range from a cool minimum of 8°C (46°F) to a maximum of 19°C (67°F), with an average of 13°C (56°F). The month is relatively wet, receiving 116 mm (4.6 in) of precipitation over 16 days, resulting in a humid atmosphere with an average humidity of 80%. Conversely, April experiences milder conditions, with a temperature range of 11°C (52°F) to 23°C (73°F), averaging 18°C (64°F). With slightly lower precipitation at 104 mm (4.1 in) over 12 days, the humidity level also drops to 74%. For a more detailed look at April's weather, you can visit Kumeu weather in April.

In comparing the weather of September and May, we observe that May tends to be slightly warmer, with average temperatures ranging from a minimum of 9°C (48°F) to a maximum of 20°C (68°F), compared to September's 8°C (46°F) minimum and 19°C (67°F) maximum. Additionally, May experiences less precipitation, averaging 95 mm (3.7 in) over 12 days, while September sees higher rainfall at 116 mm (4.6 in) across 16 days. Both months share the same humidity level of 80%, creating a comfortably damp climate. For more detailed information on May weather specifics in the area, you can check Kumeu weather in May.

When comparing the weather in September and June, we observe that both months feature similar maximum temperatures, averaging around 19°C (67°F). However, September tends to be slightly cooler overall, with average temperatures around 13°C (56°F), compared to June's average of 14°C (57°F). Precipitation levels are also comparable, with September receiving a total of 116 mm (4.6 in) over 16 days, while June has slightly less at 111 mm (4.4 in) across 14 days. The humidity is a bit higher in September at 80%, compared to 82% in June. For more detailed weather information in June, you can visit Kumeu weather in June.

When comparing the weather in September and July, both months exhibit similar average temperatures, with September featuring a range from 8°C (46°F) to 19°C (67°F) and July showing slightly cooler temperatures from 7°C (45°F) to 18°C (64°F). However, September tends to be slightly wetter, accumulating 116 mm (4.6 in) of precipitation over 16 days, compared to July’s 120 mm (4.7 in) across 14 days. Humidity levels are also marginally lower in September at 80%, while July experiences a higher humidity of 83%. For more detailed weather insights, you can visit Kumeu weather in July.

In comparing the weather of September and August, we see that both months experience similar minimum temperatures, with September averaging around 8°C (46°F) and August at 8°C (47°F). However, September enjoys slightly warmer maximum temperatures, reaching up to 19°C (67°F) compared to August's 17°C (63°F). Precipitation levels are marginally lower in September, with 116 mm (4.6 in) falling on 16 days, while August records 130 mm (5.1 in) over 17 days. Both months maintain a humidity level of 80%, making for consistently humid conditions. For more detailed information, you can visit Kumeu weather in August.

In comparing the weather of September and October, we see a subtle shift towards slightly warmer temperatures. September features a minimum of 8°C (46°F) and an average of 13°C (56°F), while October sees a slight increase with a minimum of 9°C (49°F) and an average of 15°C (59°F). Both months experience high humidity at 80%, but October offers a more pleasant experience with maximum temperatures reaching 20°C (69°F) compared to September's 19°C (67°F). Additionally, precipitation decreases from 116 mm (4.6 in) over 16 days in September to 85 mm (3.4 in) over 14 days in October, making October a potentially drier month. For more specific details, you can check out Kumeu weather in October.

September weather tends to be cooler, with temperatures ranging from a minimum of 8°C (46°F) to a maximum of 19°C (67°F), and an average of 13°C (56°F). This month also sees considerable precipitation, with around 116 mm (4.6 in) over 16 days, contributing to a humid environment with 80% humidity.

In contrast, November brings milder temperatures, with a minimum of 12°C (53°F) and a maximum of 22°C (72°F), averaging 17°C (62°F). Rainfall decreases significantly to 80 mm (3.2 in) over 11 days while maintaining the same humidity level of 80%.

For more detailed insights on November weather, you can visit Kumeu weather in November.

In comparing the weather between September and December, notable contrasts emerge. September experiences cooler temperatures, with an average of 13°C (56°F) and maximums of 19°C (67°F), while December boasts warmer averages of 19°C (66°F) and highs reaching 24°C (76°F). Additionally, September sees more precipitation, totalling 116 mm (4.6 in) over 16 days, compared to December's 71 mm (2.8 in) over just 11 days, indicating drier conditions. Humidity levels remain fairly similar, with September at 80% and December slightly lower at 78%. For more details on December weather, check out Kumeu weather in December.

Compare Kumeu's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Kumeu

As September unfolds in Kumeu, the weather begins to transition from the cool grip of winter to the more temperate conditions of spring. With its mild temperatures averaging around 13°C (56°F) and a notable rise in humidity, this month stands out as a period of rejuvenation. Compared to the chillier months prior, September experiences increased rainfall, amounting to significant precipitation over nearly half of the days. While you might still need a light jacket, it’s clear that the landscape is on the cusp of blooming, making it a captivating time to explore. For a deeper dive into the seasonal changes and nuances, check out Kumeu Climate.