September Weather in Wairakei, New Zealand

Last updated: August 31, 2025

Experience the unique September weather of Wairakei, New Zealand, where the crispness of early spring is intertwined with vibrant landscapes. With maximum temperatures averaging 17°C (63°F) and minimums dipping to 0°C (32°F), the climate offers a refreshing chill complemented by an overall average temperature of 9°C (48°F). Rain is a common companion, as residents and visitors encounter around 132 mm (5.2 in) of precipitation spread over 15 days, contributing to the lush greenery of the area. The humidity hovers at 78%, enhancing the refreshing feel of the air as the region transitions from winter's grip to the blossoming warmth of spring.

September Temperature in Wairakei

In September, Wairakei experiences a refreshing transition from the chilly winter months. With temperatures ranging from a cool 0°C (32°F) at night to a pleasant 17°C (63°F) during the day, the average dips slightly to 9°C (48°F), hinting at the onset of spring. The landscape begins to awaken, with milder weather encouraging outdoor adventures. The slight rise in temperatures compared to the preceding winter months marks a shift towards brighter days, making September a charming time to explore the natural beauty of Wairakei as it shakes off the remnants of winter and embraces the warmth of spring.

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

The chart illustrates September temperature patterns in Wairakei, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Wairakei, 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).
JanFebMarAprMayJunJulAugSepOctNovDec636360545047454648525760
Data source: Temperature data for Wairakei 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 Wairakei

In September, Wairakei experiences a noteworthy shift in its precipitation patterns as it receives 132 mm (5.2 in) of rainfall over 15 days. This amount continues the trend from the previous months, showcasing a consistent level of wet weather as the region transitions from winter to spring. Notably, September's precipitation is slightly lower than the peak seen in July and August, but it remains significant, contributing to the lush landscapes that New Zealand is known for. With a steady average of about 15 rainy days, September solidifies its place in a month rich with moisture, setting the stage for the warmer, drier days to come in October.

September Precipitation Trends in Wairakei

The chart displays monthly precipitation patterns in Wairakei, 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 Wairakei, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec7097110135127105146136132113106118
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Wairakei

In Wairakei, New Zealand, September welcomes a gentle shift in humidity, settling at 78%. This marks a decline from the peak summer months of March and April, where the humidity reaches its highest at 71% and 74%, respectively. The trend reveals a notable increase during the cooler winter months, peaking in July at 86% before gradually tapering off in September. As the year transitions towards the warmer months of October and November, humidity expectations remain relatively stable, slightly decreasing to 77% and 74%, respectively. Overall, September's humidity reflects a transitional phase, hinting at the approach of drier weather as the seasons change.

September Average Humidity in Wairakei

This chart illustrates the average monthly humidity levels in Wairakei, 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 Wairakei is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec69%69%71%74%83%86%86%83%78%77%74%66%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Wairakei

In September, Wairakei experiences a UV Index of 7, placing it in the high exposure category with a burn time of approximately 25 minutes. This marks a transition from the cooler winter months, where UV levels remained moderate, to a more intense spring environment. As the days lengthen and the sun's position shifts, residents and visitors alike should be mindful of the increased UV radiation levels that are on the rise. This month indicates a foreshadowing of the intense summer months ahead, making it essential to consider sun safety practices. For more detailed information, visit Wairakei UV Index.

Maximum UV Index Levels in Wairakei for September

The chart shows the monthly maximum UV Index (UVI) for Wairakei 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 Wairakei typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141310743357101113
Data source: Wairakei 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 Wairakei

As September rolls into Wairakei, New Zealand, the region begins to bask in an invigorating 225 hours of sunshine. This marks a delightful transition from the cooler winter months, where June and July grapple with only 160 and 178 hours of sunlight, respectively. With spring blooming, September's sunshine reflects a notable increase from the previous months, hinting at the promise of warmer days ahead. This trend continues as the sunshine hours gradually rise, reaching a peak in December with a dazzling 305 hours. Thus, September serves as a captivating prelude to the bright and sun-soaked days of summer, rejuvenating both the land and its inhabitants.

Monthly Sunshine Duration in Wairakei: September Highlighted

The September sunshine duration represents the total number of hours Wairakei 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.
JanFebMarAprMayJunJulAugSepOctNovDec260h269h255h212h190h160h178h197h225h243h273h305h
Data source: Wairakei September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Wairakei During September

As September rolls into Wairakei, the chance of sunny weather settles at 30%, reflecting a slight dip compared to the spring months that follow. The trend across the year shows a gradual decline in sunshine from the summer peak of 44% in January to the cooler depths of winter, with June seeing a low of just 23%. As the seasons shift towards spring, September offers a glimmer of hope for sunnier days ahead, but it remains challenged by varying climate patterns. With a mix of overcast skies and occasional sun, September serves as a transitional month, hinting at brighter times on the horizon while still holding onto the remnants of winter's chill.

Percentage of Sunny Days in September in Wairakei

The chart illustrates the percentage of sunny days in Wairakei 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 Wairakei experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec44%40%40%40%32%23%29%30%30%21%31%28%
Data source: Wairakei September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Wairakei in September

In September, Wairakei experiences a transition as daylight gradually begins to increase again, offering 11 hours of sunlight. This follows the winter months of June and July, where daylight was at its lowest with only 9 hours. The ascent continues through the month, following the pattern established from previous months, suggesting a return to the longer days of spring. As the daylight hours increase, Wairakei begins to shake off the chill of winter, with October promising even more sunshine at 13 hours. This rhythm of daylight reflects the seasonal shift, inviting longer afternoons and the beauty of blooming landscapes.

Average Daylight Hours in Wairakei for September

The chart illustrates the variation in daylight duration in Wairakei throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec14h 30m13h 32m12h 18m11h 2m10h9h 29m9h 44m10h 38m11h 50m13h 5m14h 12m14h 48m
Data source: Wairakei daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Wairakei

As September arrives in Wairakei, New Zealand, the average wind speed picks up, reaching 3.6 m/s (8 mph), a noticeable increase from the more tranquil conditions experienced in the winter months. Following a consistent pattern, wind speeds began to rise in late autumn, with a gradual climb from 2.7 m/s (6 mph) in April to a robust 3.3 m/s (7 mph) in August. This upward trend signals a vibrant change in the season, as spring approaches, invigorating the landscape with a refreshing breeze. Each gust carries the promise of warmer days ahead, making September a delightful time to embrace the outdoors in this picturesque region.

Average September Wind Speed in Wairakei

The chart displays monthly wind speed patterns in Wairakei, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.92.52.72.73.32.93.23.33.6 m/s3.03.23.0
Data source: Wairakei September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Wairakei Compares to Other Months

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

When comparing the weather of September and January, notable differences emerge. September sees cooler temperatures, with a minimum of 0°C (32°F), an average of 9°C (48°F), and a maximum of 17°C (63°F). Additionally, this month is characterized by higher precipitation at 132 mm (5.2 in) over 15 days, contributing to a humidity level of 78%. In contrast, January experiences a much warmer climate, with temperatures ranging from a minimum of 5°C (41°F) to a maximum of 28°C (83°F) and an average of 17°C (63°F). Precipitation drops to 70 mm (2.8 in) over just 8 days, resulting in a lower humidity level of 69%. For a more detailed look at January weather, you can check Wairakei weather in January.

When comparing the weather in September and February, the differences are quite striking. In September, temperatures range from a chilly minimum of 0°C (32°F) to a comfortable maximum of 17°C (63°F), with an average of 9°C (48°F). Precipitation is frequent, occurring on about 15 days and totaling 132 mm (5.2 in), while humidity hovers around 78%. In contrast, February experiences much warmer temperatures, with a minimum of 6°C (43°F), an average of 17°C (63°F), and a peak of 28°C (83°F). Precipitation is also less frequent, happening on just 9 days and amounting to 97 mm (3.8 in), accompanied by lower humidity at 69%. For more details, check out Wairakei weather in February.

September and March present contrasting weather patterns. In September, temperatures range from a chilly minimum of 0°C (32°F) to a moderate maximum of 17°C (63°F), with an average of 9°C (48°F). The month experiences significant precipitation, totaling 132 mm (5.2 in) over 15 days, along with high humidity levels at 78%. Conversely, March offers a much warmer climate, with temperatures starting at a minimum of 6°C (43°F) and peaking at 26°C (78°F), averaging around 15°C (60°F). This month sees slightly less rainfall, with 110 mm (4.3 in) spread across 12 days and a lower humidity of 71%. For a more detailed look at the weather in March, you can check Wairakei weather in March.

In comparing the weather between September and April, we observe notable differences in temperature and precipitation patterns. September features cooler temperatures, with a minimum of 0°C (32°F), an average of 9°C (48°F), and a maximum of 17°C (63°F). In contrast, April sees milder weather, with minimums at 2°C (37°F), average temperatures rising to 12°C (55°F), and maximums reaching 22°C (71°F).

Precipitation levels are similar, with September recording 132 mm (5.2 in) over 15 rainy days, while April has slightly higher precipitation at 135 mm (5.3 in) but occurs over just 11 days. Humidity remains relatively consistent, with September at 78% and April at 74%. For a closer look at the weather details in April, you can visit Wairakei weather in April.

In comparing the weather of September and May, both months exhibit similar temperature ranges with September having a minimum of 0°C (32°F), an average of 9°C (48°F), and a maximum of 17°C (63°F). In contrast, May sees a slightly higher average temperature at 10°C (50°F) and a maximum of 18°C (65°F). Precipitation levels are comparable as well, with September recording 132 mm (5.2 in) over 15 days and May slightly lower at 126 mm (5.0 in) across 10 days. Humidity is also noteworthy, as May features a humidity level of 83%, slightly higher than September's 78%. For more details on the climate specifics in May, you can visit Wairakei weather in May.

When comparing the weather in September and June, September tends to be slightly warmer with average temperatures ranging from 0°C to 17°C (32°F to 63°F), while June sees slightly cooler temperatures from -1°C to 15°C (31°F to 60°F). Precipitation is higher in September, with 132 mm (5.2 in) over 15 days compared to June's 105 mm (4.1 in) across 12 days, indicating September is generally wetter. Additionally, humidity levels are marginally lower in September at 78% compared to June's 85%. This makes September feel a bit milder and less humid, while June tends to have a cooler and slightly more humid climate. For a detailed look at June's weather specifics, you can visit Wairakei weather in June.

In comparing the weather between September and July, it is evident that September enjoys slightly milder temperatures with a minimum of 0°C (32°F) and a maximum of 17°C (63°F), while July sees cooler temperatures ranging from a minimum of -2°C (28°F) to a maximum of 14°C (57°F). September also experiences higher average temperatures, sitting at 9°C (48°F) compared to July's average of 7°C (45°F). Despite September having slightly less precipitation at 132 mm (5.2 in) over 15 days, July has a comparable total of 146 mm (5.8 in) over 14 days, along with higher humidity levels peaking at 86% compared to September's 78%. For more details on July weather specifics, you can visit Wairakei weather in July.

In comparing the weather of September and August, September showcases slightly warmer temperatures with an average of 9°C (48°F), while August holds a lower average of 8°C (46°F). In terms of maximum temperatures, September reaches up to 17°C (63°F), surpassing August's peak of 14°C (58°F). However, both months experience similar levels of precipitation, with September recording 132 mm (5.2 in) over 15 days and August having a slightly higher 136 mm (5.4 in) over 16 days. Humidity levels are also comparable, with September at 78% and August slightly higher at 83%. For further details about August weather, you can check Wairakei weather in August.

September and October present a notable transition in weather conditions. In September, temperatures range from a chilly minimum of 0°C (32°F) to a max of 17°C (63°F), with an average of 9°C (48°F). The month is characterized by higher precipitation, totaling 132 mm (5.2 in) over 15 days and a humidity level of 78%. In contrast, October warms up slightly, with minimum temperatures around 1°C (34°F) and maximums reaching 22°C (72°F), resulting in an average temperature of 11°C (52°F). Precipitation decreases to 113 mm (4.5 in), while the humidity remains fairly stable at 77%. For a detailed look at the weather patterns specific to this month, you can check Wairakei weather in October.

In September, the weather is characterized by cooler temperatures, with a minimum of 0°C (32°F) and an average of 9°C (48°F), reaching a maximum of 17°C (63°F). This month also sees a higher precipitation of 132 mm (5.2 in) over 15 days, contributing to a relatively high humidity level of 78%. In contrast, November experiences milder temperatures, starting with a minimum of 2°C (36°F), an average of 14°C (57°F), and maximums climbing up to 28°C (82°F). The precipitation in November is slightly lower at 106 mm (4.2 in), occurring over 13 days, and humidity drops to 74%. For a detailed look at November weather specifics, you can check Wairakei weather in November.

In September, temperatures range from a chilly 0°C (32°F) at night to a mild 17°C (63°F) during the day, with an average of 9°C (48°F). The month experiences considerable precipitation, totaling 132 mm (5.2 in) over 15 days, contributing to a high humidity level of 78%. In contrast, December brings warmer weather, with nighttime lows of 5°C (41°F) and daytime highs reaching up to 26°C (79°F), averaging 16°C (61°F). Although December sees slightly less rainfall at 118 mm (4.7 in) over the same number of days, the humidity decreases to a more comfortable 66%. For a closer look at December weather conditions, you can check Wairakei weather in December.

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Conclusion: What to Expect From September Weather in Wairakei

As September unfolds in Wairakei, the weather transitions from the chill of winter to the more temperate beginnings of spring. With daily temperatures averaging around a cool 9°C, there's a significant range from the warmer 17°C highs to the crisp 0°C lows at night. This month sees its share of wet days, with 15 days recording precipitation, adding up to 132 mm of rain, which contributes to the region's lush landscape. The higher humidity of 78% accentuates the fresh, invigorating feel of the air, marking a refreshing change from the drier winter months. For a closer look at how these patterns fit into Wairakei's overall climate, visit Wairakei Climate.