September Weather in Whitianga, New Zealand

Last updated: August 31, 2025

In September, Whitianga, New Zealand, experiences a transition into spring, showcasing mild temperatures with a maximum of 16°C (61°F) and an average of 13°C (56°F). The minimum temperature dips to 8°C (47°F), creating a refreshing climate during this month. Rainfall is notable, with 123 mm (4.9 in) of precipitation occurring over 13 days, leading to a relatively humid atmosphere at 77% humidity. This blend of cooler weather and occasional showers offers a unique charm to the coastal town, making it an interesting destination for those seeking to enjoy the beauty of the changing season.

September Temperature in Whitianga

In Whitianga, New Zealand, September marks a transitional month as the temperatures begin to rise from the cooler winter months. With a minimum of 8°C (47°F) and a maximum reaching 16°C (61°F), the average temperature hovers around 13°C (56°F), signifying the slow return of warmth. This slight uptick in temperatures is a precursor to the brighter, sunnier days of late spring and summer. Compared to the preceding months, September offers a refreshingly mild climate, making it an ideal time for outdoor activities and exploring the region's stunning landscapes as the days gradually lengthen. As the month unfolds, the welcoming temperatures invite both locals and travelers to embrace the vibrant beauty of Whitianga's early spring.

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

The chart illustrates September temperature patterns in Whitianga, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Whitianga, 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).
JanFebMarAprMayJunJulAugSepOctNovDec676867646157555556586165
Data source: Temperature data for Whitianga 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 Whitianga

September in Whitianga, New Zealand, sees a notable precipitation total of 123 mm (4.9 in), reflecting the transition into spring. This amount continues a trend of relatively high rainfall as the month typically experiences 13 days of rain, aligning closely with the wetter months that precede it. Following a summer pattern of lighter rains, September's precipitation serves as a reminder of the changing seasons, with rainfall gradually tapering off in the subsequent months. As the year progresses, the region typically enjoys a decrease in precipitation, suggesting that while September wraps up winter's grip, it simultaneously ushers in the promise of sunnier days ahead.

September Precipitation Trends in Whitianga

The chart displays monthly precipitation patterns in Whitianga, 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 Whitianga, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec41949513299141126114123897977
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Whitianga

In Whitianga, New Zealand, September ushers in a slight decline in humidity, averaging around 77%. This level marks a gentle shift from the higher humidity levels experienced in the mid-winter months, where figures peak at 82% in July. As the seasons change, the humidity gradually stabilizes, with September's readings reflecting a consistency typical of early spring. The months leading up to September—particularly May to August—exhibit a notable increase in moisture, peaking in June and July. This transition hints at a gradual easing of the dampness that characterizes winter, suggesting more comfortable conditions ahead as the region transitions into the warmer months.

September Average Humidity in Whitianga

This chart illustrates the average monthly humidity levels in Whitianga, 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 Whitianga is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec75%73%73%73%79%81%82%79%77%76%75%74%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Whitianga

In September, Whitianga experiences a UV Index of 7, placing it in the high exposure category with a burn time of approximately 25 minutes. As spring unfolds, the UV levels rise from the previous winter months, transitioning from a moderate index of 3 in July and August, to a more intense level this month. It's a subtle reminder that as the days begin to lengthen, sun safety remains essential. This trend continues into October, where the UV Index climbs to 10, highlighting the need for increased vigilance as summer approaches. So, whether you're planning outdoor activities or simply enjoying the sun, be sure to stay protected. For more detailed insights on UV levels, visit the Whitianga UV Index.

Maximum UV Index Levels in Whitianga for September

The chart shows the monthly maximum UV Index (UVI) for Whitianga 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 Whitianga typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141410753357101113
Data source: Whitianga 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 Whitianga

In September, Whitianga basks in a delightful 261 hours of sunshine, marking a notable shift as the warmth of spring begins to embrace the region. This month serves as a bridge between the cooler winter months and the vibrant summer ahead, showing a steady increase from the previous months. After a dip to 190 hours in June, sunlight gradually climbs back, significantly outshining May's 221 hours and April's 240 hours. As we approach October, an exhilarating 292 hours await, promising a splendid transition into the heart of the warmer season. The trend reflects Whitianga's charming ability to rejuvenate under cheerful skies, making September a perfect time for outdoor adventures and serene beach days.

Monthly Sunshine Duration in Whitianga: September Highlighted

The September sunshine duration represents the total number of hours Whitianga 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.
JanFebMarAprMayJunJulAugSepOctNovDec292h285h289h240h221h190h216h237h261h292h310h354h
Data source: Whitianga September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Whitianga During September

In Whitianga, New Zealand, the likelihood of basking in sunny weather takes a noticeable dip by September, with only a 42% chance of sunny days. This trend marks a continuation from the peak summer months, where January leads with a striking 61%. As the seasons transition from the warm summer to the cooler autumn, the chances of sunshine decline steadily, reaching their lowest around October, where they plummet to 33%. September serves as a transitional period, slightly fading from the sun-soaked days of late summer but still offering opportunities for pleasant, albeit less predictable, weather.

Percentage of Sunny Days in September in Whitianga

The chart illustrates the percentage of sunny days in Whitianga 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 Whitianga experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec61%45%49%44%45%42%46%50%43%33%39%33%
Data source: Whitianga September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Whitianga in September

As the seasons shift in Whitianga, New Zealand, September marks a delightful transition with 11 hours of daylight. This increase from the deeper winter months, where daylight dipped to just 9 hours in June and July, signals the approach of spring. Following the gradual descent from January's peak of 14 hours, daylight duration begins to rise again, reaching 12 hours by March and quickly climbing back to 13 hours in October. This gradual return of longer days not only brightens the landscape but also invigorates outdoor activities, making September a beautiful month of renewal and exploration in Whitianga.

Average Daylight Hours in Whitianga for September

The chart illustrates the variation in daylight duration in Whitianga throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec14h 21m13h 26m12h 17m11h 6m10h 8m9h 39m9h 53m10h 44m11h 51m13h 1m14h 4m14h 37m
Data source: Whitianga daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Whitianga

As September rolls in Whitianga, New Zealand, the winds continue to dance energetically, averaging 7.0 m/s (16 mph). This moderate breeze signals a slight decrease from the gustier heights of August, which reached 7.3 m/s (16 mph), yet it remains well above earlier months such as May and June, both at 6.4 m/s (14 mph). The transition into spring stirs the air, creating a refreshing atmosphere that often draws locals and visitors to the coastline. It's interesting to note that September maintains a robust wind speed, contributing to the vibrant outdoor activities and the soothing sounds of nature. As the months progress, the wind tends to fluctuate, and September’s breezy charm stands as a bridge between the lively winds of winter and the calming autumn air ahead.

Average September Wind Speed in Whitianga

The chart displays monthly wind speed patterns in Whitianga, 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.
JanFebMarAprMayJunJulAugSepOctNovDec5.35.15.45.76.46.47.17.37.0 m/s6.54.85.7
Data source: Whitianga September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Whitianga Compares to Other Months

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

September and January present quite contrasting weather patterns. In September, temperatures range from a cool minimum of 8°C (47°F) to a maximum of 16°C (61°F), accompanied by significant precipitation of 123 mm (4.9 in) over 13 rainy days. The humidity is relatively high at 77%, contributing to a damp atmosphere. In stark contrast, January enjoys much warmer temperatures, with a minimum of 14°C (58°F) and a pleasant average of 19°C (67°F), peaking at 24°C (75°F). It experiences considerably less rainfall, only 41 mm (1.6 in) over just 4 days, with humidity slightly lower at 75%. For more detailed insights, visit Whitianga weather in January.

September and February present contrasting weather patterns. In September, temperatures range from a minimum of 8°C (47°F) to a maximum of 16°C (61°F), with an average of 13°C (56°F). This month experiences 123 mm (4.9 in) of precipitation over 13 days, accompanied by a relatively high humidity of 77%. In contrast, February boasts warmer temperatures, with a minimum of 16°C (61°F), an average of 20°C (68°F), and a maximum of 25°C (77°F). Precipitation decreases to 94 mm (3.7 in) over just 9 days, and humidity slightly lowers to 73%. For a closer look at February's weather specifics, check out Whitianga weather in February.

In September, the weather tends to be cooler with average temperatures ranging from a low of 8°C (47°F) to a high of 16°C (61°F), while March brings milder conditions, with temperatures ranging from 14°C (58°F) to 23°C (73°F). September also experiences more rainfall, totaling 123 mm (4.9 in) over approximately 13 days, compared to March, which sees 95 mm (3.7 in) across 12 days. Furthermore, humidity levels are slightly higher in September at 77%, compared to 73% in March, highlighting the transition from early spring’s chill to late summer warmth. For more specific insights on the weather in March, you can check out Whitianga weather in March.

When comparing the weather in September and April, notable differences emerge. September typically features cooler temperatures, with an average of 13°C (56°F) and a maximum of 16°C (61°F), while April enjoys a warmer average of 18°C (64°F) and can reach up to 21°C (71°F). Both months have similar precipitation levels, with September receiving 123 mm (4.9 in) and April slightly higher at 131 mm (5.2 in), although both months experience rain on about 13 days. Humidity is also slightly higher in September at 77%, compared to April's 73%. For a more detailed look at April weather, you can check Whitianga weather in April.

Comparing the weather in September and May reveals some notable differences. September tends to be cooler, with average temperatures ranging from a minimum of 8°C (47°F) to a maximum of 16°C (61°F), while May offers slightly warmer conditions, with temperatures averaging between 9°C (49°F) and 19°C (67°F). Precipitation levels are relatively high in both months, with September receiving 123 mm (4.9 in) over 13 days and May slightly less at 99 mm (3.9 in) over the same number of days. Humidity is also quite similar, with September at 77% and May at 79%. For a more detailed look at May weather, check out Whitianga weather in May.

In September, the weather tends to be slightly cooler than in June, with average temperatures ranging from 8°C (47°F) to a maximum of 16°C (61°F), compared to June's milder temperatures of 9°C (48°F) to 18°C (65°F). Both months experience a considerable amount of precipitation, with September receiving around 123 mm (4.9 in) on 13 days and June slightly wetter at 141 mm (5.6 in) on 14 days. Humidity levels are also comparable, with September at 77% and June a bit higher at 81%. For more details on June's weather, check out Whitianga weather in June.

When comparing the weather in September to that of July, we see some notable similarities and differences. Both months feature a similar average temperature of 13°C (56°F), but September tends to be slightly cooler, with a maximum temperature of 16°C (61°F) compared to July's 17°C (62°F). Precipitation levels are also comparable, with September experiencing 123 mm (4.9 in) over 13 days and July recording 126 mm (5.0 in) across 14 days. However, July is characterized by slightly higher humidity levels at 82%, as opposed to September's 77%. For more specific details on July weather, you can check Whitianga weather in July.

In comparing the weather of September and August, we observe that both months feature similar temperature ranges, with a minimum of 8°C (47°F), an average of around 13°C (56°F), and a maximum of 16°C (61°F). However, September experiences slightly more precipitation, totaling 123 mm (4.9 in) over 13 days, compared to August's 114 mm (4.5 in) across 16 days. Additionally, September's humidity is marginally lower at 77%, whereas August has a humidity level of 79%. For those interested in exploring August weather specifics, you can find more information here: Whitianga weather in August.

In September, the weather features a cooler climate with minimum temperatures around 8°C (47°F) and an average of 13°C (56°F), peaking at a maximum of 16°C (61°F). It also experiences a higher level of precipitation at 123 mm (4.9 in) over 13 days, contributing to a humidity level of 77%. In contrast, October sees a slight warming trend, with minimum temperatures of 9°C (48°F), an average of 14°C (58°F), and maximum temperatures reaching 17°C (64°F). Additionally, precipitation decreases to 89 mm (3.5 in) over 11 days, resulting in a slightly lower humidity level of 76%. For more detailed information about October weather, visit Whitianga weather in October.

In September, the weather is quite cool, with temperatures ranging from a minimum of 8°C (47°F) to a maximum of 16°C (61°F). It’s also relatively wet, experiencing 123 mm (4.9 in) of precipitation over 13 days, coupled with a humidity level of 77%. In contrast, November sees milder temperatures, with a minimum of 12°C (53°F) and a maximum of 20°C (68°F), making it feel warmer overall. The month is drier, with only 79 mm (3.1 in) of rainfall spread over 9 days and slightly lower humidity at 75%. For more detailed information on the weather during this month, you can check out Whitianga weather in November.

In September, the weather is cooler with average temperatures hovering around 13°C (56°F) and a maximum of 16°C (61°F). The month experiences significant rainfall, totaling 123 mm (4.9 in) over 13 days, and a humidity level of 77%. In contrast, December brings milder and more pleasant conditions, with average temperatures rising to 18°C (65°F) and highs reaching 22°C (72°F). Additionally, precipitation decreases to 77 mm (3.0 in) over just 9 days, and humidity slightly lowers to 74%. For a detailed look at December's climate, check out Whitianga weather in December.

Compare Whitianga's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Whitianga

September in Whitianga brings a noticeable shift as the region transitions from winter's chill to the warmth of spring. With average temperatures hovering around 13°C (56°F), it's a refreshing time to experience the area, although rain is more frequent, with 123 mm of precipitation across about 13 days. The humidity level rises to 77%, contributing to a crisp yet invigorating atmosphere as nature begins to bloom. Compared to the drier and cooler winter months, September invites both locals and visitors to relish the balance of fresh air and scenic beauty, making it a unique time to explore the region. For more details, check out our page on Whitianga Climate.