September Weather in Waikanae, New Zealand

Last updated: August 31, 2025

September in Waikanae, New Zealand ushers in the beginning of spring, characterized by mild temperatures and a refreshing atmosphere. With maximum temperatures reaching 15°C (60°F) and an average of 10°C (51°F), residents experience cool yet pleasant days. As the season transitions, minimum temperatures drop to about 4°C (40°F) during the chilly nights. Rainfall is common, with approximately 151 mm (5.9 in) of precipitation spread across 17 days, contributing to a relative humidity of 83% that envelops the region in a lush, green vibrancy. Embrace the beauty of springtime in Waikanae as it comes alive with changing weather patterns and the promise of approaching warmer days.

September Temperature in Waikanae

In Waikanae, New Zealand, September marks the subtle transition into spring, characterized by cool mornings and gradually warming days. With temperatures ranging from a crisp 4°C (40°F) at night to a pleasant 15°C (60°F) during the day, it’s a time when the landscape begins to emerge from winter’s chill. Averaging 10°C (51°F), September’s climate signals a shift towards milder weather, paving the way for the warmer months ahead. As the month progresses, locals and visitors alike can enjoy the fresh air and vibrant blooms, setting the stage for outdoor adventures in the blossoming countryside.

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

The chart illustrates September temperature patterns in Waikanae, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Waikanae, 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).
JanFebMarAprMayJunJulAugSepOctNovDec626361575551505051535760
Data source: Temperature data for Waikanae 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 Waikanae

Throughout September in Waikanae, New Zealand, precipitation remains significant, with a total of 151 mm (5.9 in) recorded over 17 days. This consistent rainfall marks a continuation of the wet conditions seen in August, which had the highest precipitation of the year at 156 mm (6.1 in). The trend of increased precipitation is evident, as September’s totals fall just slightly below last month’s peak, contributing to a notably damp late winter. As the region transitions into spring, this substantial rainfall not only supports lush greenery but also sets the stage for the drier months ahead, making September a crucial player in the annual precipitation cycle.

September Precipitation Trends in Waikanae

The chart displays monthly precipitation patterns in Waikanae, 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 Waikanae, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec78106107140131126155156151122131159
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Waikanae

In September, Waikanae, New Zealand experiences a humidity level of 83%, maintaining a trend established over the past few months. Following a peak in June and July at 86%, humidity begins to ease slightly, reflecting the transition from winter into spring. This gradual decrease continues through the spring months, as October and November show a slight dip to 82%. Interestingly, the humidity levels remain relatively stable throughout the year, hovering around the 80% mark, which suggests a consistently moist climate that characterizes Waikanae. As we welcome the warmer temperatures, the lingering humidity hints at the verdant landscapes that the region is renowned for.

September Average Humidity in Waikanae

This chart illustrates the average monthly humidity levels in Waikanae, 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 Waikanae is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec79%79%79%80%84%86%86%83%83%82%82%81%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Waikanae

As September rolls into Waikanae, New Zealand, the UV Index experiences a moderate rise to 6, classified as high. This marks a transition from winter's low UV exposure, encouraging residents and visitors alike to start prioritizing sun protection, with a burn time of approximately 25 minutes. Comparatively, summer months bring much higher UV readings, peaking at 13, but September sets the stage for the approaching warmer weather and increased sun intensity. Being mindful of UV exposure during this month is essential, particularly as October follows suit with a 9 on the UV Index scale. For more detailed information, check out the complete Waikanae UV Index.

Maximum UV Index Levels in Waikanae for September

The chart shows the monthly maximum UV Index (UVI) for Waikanae 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 Waikanae typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec1313974224691113
Data source: Waikanae 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 Waikanae

As September dawns in Waikanae, New Zealand, residents and visitors alike can bask in an impressive 244 hours of sunshine—a delightful increase from the cooler winter months. Following a refreshing August with 221 hours, September marks a gradual transition into longer days and warming weather, paving the way for a vibrant spring. This trend continues into October, which welcomes back the sun with 270 hours, setting the stage for the lush landscapes and blooming gardens that characterize the season. As we look ahead, the increasing daylight offers a promise of brighter days, encouraging outdoor adventures and a reinvigorated spirit as nature awakens.

Monthly Sunshine Duration in Waikanae: September Highlighted

The September sunshine duration represents the total number of hours Waikanae 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.
JanFebMarAprMayJunJulAugSepOctNovDec275h285h270h229h201h164h187h221h244h270h300h324h
Data source: Waikanae September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Waikanae During September

In Waikanae, New Zealand, September offers a moderate 43% chance of sunny weather, marking a subtle transition as spring begins to unfold. This percentage is slightly above the year’s low months, such as June and October, and echoes trends from the preceding months, where the likelihood of sunshine hovers between the early 40s and the high 30s. As winter recedes, September's weather signals a hopeful shift toward brighter days, making it an enticing time for outdoor activities. While not the sunniest month of the year, the increase in daylight and warmth makes this period an appealing prelude to the vibrant months ahead.

Percentage of Sunny Days in September in Waikanae

The chart illustrates the percentage of sunny days in Waikanae 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 Waikanae experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec53%49%46%49%41%28%45%42%43%27%37%32%
Data source: Waikanae September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Waikanae in September

As the winter chill recedes, September in Waikanae, New Zealand heralds a gradual increase in daylight, with the sun gracing the skies for approximately 11 hours each day. Following the consistent decline from 14 hours in January to a low of 9 hours during the depths of winter, September marks a turning point. This slight lengthening of daylight signals the approach of spring, setting the stage for the forthcoming burst of sunshine in October, which offers 13 hours of daylight. The shifting patterns reflect the changing seasons, inviting residents and visitors alike to embrace the vibrancy and renewal that this transitional month brings.

Average Daylight Hours in Waikanae for September

The chart illustrates the variation in daylight duration in Waikanae throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec14h 43m13h 39m12h 19m10h 57m9h 50m9h 15m9h 32m10h 31m11h 48m13h 10m14h 23m15h 2m
Data source: Waikanae daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Waikanae

As September rolls into Waikanae, a noticeable shift in the breeze emerges, with average wind speeds reaching 7.2 m/s (16 mph). This uptick marks a delightful transition from the more gentle winds of late winter, wherein the preceding months ranged between 5.5 and 6.4 m/s. The invigorating September winds not only signal the onset of spring but also contribute to an energizing atmosphere, perfect for outdoor enthusiasts. This trend of increasing wind speed continues into the sunny months of spring and early summer, setting the stage for an active season ahead. With the transition from winter's calm to September's breezy embrace, Waikanae invites its residents and visitors to enjoy the fresh air and vibrant surroundings.

Average September Wind Speed in Waikanae

The chart displays monthly wind speed patterns in Waikanae, 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.
JanFebMarAprMayJunJulAugSepOctNovDec6.24.65.25.65.95.85.56.47.2 m/s5.46.35.9
Data source: Waikanae September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Waikanae Compares to Other Months

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

September and January present quite different weather patterns. In September, temperatures range from a chilly minimum of 4°C (40°F) to a maximum of 15°C (60°F), with an average of 10°C (51°F). This month is characterized by significant precipitation, averaging 151 mm (5.9 in) over 17 days and a high humidity level of 83%. In contrast, January is much warmer, with temperatures ranging from a minimum of 10°C (49°F) to a pleasant maximum of 25°C (77°F), averaging 17°C (62°F). January experiences less rainfall, with only 78 mm (3.1 in) occurring over 12 days and slightly lower humidity at 79%. For those looking to understand more about the weather in January, you can find more details here: Waikanae weather in January.

The weather in September is markedly cooler than in February, with average temperatures ranging from a minimum of 4°C (40°F) to a maximum of 15°C (60°F), compared to February's milder range of 10°C (50°F) to 24°C (76°F). September experiences more precipitation, totaling 151 mm (5.9 in) over 17 days, whereas February sees less rain at 106 mm (4.2 in) across just 10 days. Additionally, while September has a higher humidity level of 83%, February’s humidity tends to be slightly lower at 79%. For a detailed look at February weather, check Waikanae weather in February.

In comparing the weather between September and March, September typically has cooler temperatures, with a minimum of 4°C (40°F) and an average of 10°C (51°F), peaking at 15°C (60°F). It also experiences more precipitation, totaling 151 mm (5.9 in) over 17 days and a relatively high humidity of 83%. In contrast, March ushers in warmer weather, with temperatures ranging from a minimum of 9°C (49°F) to an average of 16°C (61°F) and a maximum of 21°C (70°F). Precipitation is less frequent in March, with 107 mm (4.2 in) over 12 days and slightly lower humidity at 79%. For more detailed information, visit Waikanae weather in March.

In comparing the weather of September and April, September tends to be cooler and wetter, with average temperatures ranging from 4°C to 15°C (40°F to 60°F) and receiving 151 mm (5.9 in) of precipitation over approximately 17 days. In contrast, April offers a milder climate, featuring temperatures from a minimum of 7°C to a maximum of 20°C (45°F to 69°F), and slightly less rainfall at 140 mm (5.5 in) across 14 days. While both months experience high humidity, September's 83% surpasses April's 80%, making September feel more damp overall. For those looking to explore the specifics of April's weather conditions, you can find more information here: Waikanae weather in April.

September and May exhibit notable differences in weather patterns. September tends to be slightly cooler, with average temperatures ranging from a minimum of 4°C (40°F) to a maximum of 15°C (60°F), while May shows a warmer profile, with temperatures varying from 5°C (42°F) to 17°C (64°F). Precipitation levels are fairly close, with September receiving about 151 mm (5.9 in) over 17 days compared to May's 131 mm (5.1 in) over 14 days. Humidity levels are similar in both months, hovering around 83% in September and 84% in May. For more detailed insights into May's weather patterns, you can refer to Waikanae weather in May.

In comparing the weather of September and June, we can see some notable differences. September generally has slightly lower average temperatures, with a minimum of 4°C (40°F) and a maximum of 15°C (60°F), compared to June, which has a slightly milder range with a minimum of 5°C (42°F) and a maximum of 16°C (60°F). Precipitation is more prevalent in September, with 151 mm (5.9 in) falling over 17 days, while June records 126 mm (4.9 in) across 13 days. Additionally, September displays lower humidity at 83%, compared to June's 86%. For more detailed insights into June weather, you can check Waikanae weather in June.

In comparing the weather of September and July, both months exhibit relatively cool temperatures, with September showing a slightly wider range. September experiences a minimum of 4°C (40°F) and a maximum of 15°C (60°F), while July has a minimum of 5°C (41°F) and a maximum of 14°C (58°F). Average temperatures remain consistent at around 10°C (51°F) for both months. Precipitation levels are comparable, with September receiving 151 mm (5.9 in) and July a bit more at 155 mm (6.1 in), both over 17 days. Humidity is also similar, with September at 83% and July slightly higher at 86%. For a more detailed look at July weather, you can refer to Waikanae weather in July.

In comparing the weather between September and August, both months exhibit similar average temperatures, hovering around 10°C (50°F). However, September experiences slightly cooler minimum and maximum temperatures, with lows of 4°C (40°F) and highs reaching 15°C (60°F), while August records a minimum of 5°C (41°F) and a maximum of 14°C (57°F). Precipitation levels are also comparable, with September receiving 151 mm (5.9 in) and August close behind at 156 mm (6.1 in), both spread over 17 days. Notably, humidity remains constant at 83% throughout both months. For more detailed information on August weather, you can visit Waikanae weather in August.

September typically presents cooler weather compared to October, with average temperatures ranging from a minimum of 4°C (40°F) to a maximum of 15°C (60°F), while October sees slightly warmer averages with minimums at 5°C (42°F) and maximums reaching 17°C (62°F). Rainfall is abundant in September, totaling 151 mm (5.9 in) over 17 days, but October experiences a decrease in precipitation to 122 mm (4.8 in) over the same number of days. Humidity levels remain similar, hovering around 83% in September and slightly lower at 82% in October. For more detailed information on October's weather, you can check Waikanae weather in October.

September and November exhibit notable differences in weather patterns. September tends to be cooler, with average temperatures ranging from a minimum of 4°C (40°F) to a maximum of 15°C (60°F), while November enjoys milder temperatures, with a minimum of 8°C (46°F) and a maximum of 18°C (65°F). Additionally, September experiences more precipitation, totaling 151 mm (5.9 in) over 17 days, compared to November's 131 mm (5.2 in) over 14 days. Humidity levels remain relatively similar, with September at 83% and November slightly lower at 82%. For more detailed insights, you can check Waikanae weather in November.

In September, the weather features cooler temperatures with a minimum of 4°C (40°F) and an average of 10°C (51°F), peaking at a maximum of 15°C (60°F). This month experiences significant rainfall, with 151 mm (5.9 in) spread over 17 days and high humidity at 83%. In contrast, December sees a rise in temperatures, with a minimum of 9°C (48°F) and an average of 16°C (61°F), reaching a maximum of 22°C (71°F). Precipitation slightly increases to 159 mm (6.3 in) over the same 17 days, but humidity drops slightly to 81%. Additionally, for a more detailed look at the December weather, visit Waikanae weather in December.

Compare Waikanae's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Waikanae

As September unfolds in Waikanae, the weather shifts markedly from the chill of winter. While the chill remains with cool averages, the month brings a welcome increase in warmth, providing a stark contrast to the colder months preceding it. With a higher number of rainy days and humidity levels peaking at 83%, September offers a refreshing feel, though it may also feel damp. This transitional month paves the way for the sunny days of spring, making it a unique time of year for both locals and visitors. Embrace the changing weather and learn more about the region's climate at Waikanae Climate.