Last updated: August 31, 2025
As September unfolds in Wellington, New Zealand, the city experiences a crisp average temperature of 11°C (52°F), with maximums reaching 15°C (59°F) and minimums dipping to 7°C (44°F). This transitional month is characterized by a notable humidity of 83%, creating a fresh coastal atmosphere. Rainfall, accumulating to 85 mm (3.4 in) over 12 days, adds to the region's lush beauty, making it vital for the thriving natural landscape. Embrace the dynamic weather of September as Wellington welcomes the arrival of spring with its charming blend of cooler temperatures and invigorating rain.
As September rolls into Wellington, New Zealand, the city begins its transition from the chill of winter to the mildness of spring. The temperatures feature a minimum of 7°C (44°F), creeping upward to an average of 11°C (52°F), with a peak at 15°C (59°F). This gradual warming trend signals a shift from the colder months, teasing the promise of sunnier days ahead. While the max temperature might still feel brisk compared to the summer months, the fresh, crisp air invites residents and visitors alike to embrace outdoor activities. As the spring blossoms begin to bloom, Wellington slowly shakes off winter's embrace, setting the stage for the vibrant season to come.
September in Wellington, New Zealand, sees a total precipitation of 85 mm (3.4 in), marking a slight decline compared to the wetter months of winter. With 12 rainy days, the spring transition becomes evident as temperatures rise and the days lengthen. The overall trend shows September as part of a broader pattern in which the city experiences increasing rainfall from late spring through winter. Despite a drop from the rainy peak of July, this month maintains a significant level of precipitation, hinting at the lingering influence of winter before the drier, sunnier days of October. The combination of manageable rainfall and moderate precipitation days makes September a uniquely transitional month, bridging the gap between the chill of winter and the warmth of spring.
In September, Wellington experiences a humidity level of 83%, which provides a smooth transition from the cooler winter months. As the seasons shift, the humidity begins to stabilize, reflecting the end of winter's damp chill and the approach of spring. Notably, September's humidity remains consistent with the slightly lower levels recorded in August, showcasing a lingering moisture in the air while paving the way for the drier autumn months ahead. This trend indicates that while the air begins to warm, the characteristic humidity of Wellington persists, adding to the city's unique charm during this time of year.
As September rolls into Wellington, the UV Index begins to rise, reaching a value of 6 which falls into the high exposure category, indicating a burn time of just 25 minutes for fair-skinned individuals. This marks a transition from the cooler months of winter, where UV levels were lower and burned times were extended, to a more intense sun exposure as spring approaches. Interestingly, this uptick in UV rays paves the way for what seems to be a gradual climb leading into the peak summer months, with January and February recording extreme levels of 13. It's essential for residents and visitors alike to stay informed and protect their skin during outdoor activities. For more detailed insights, check out Wellington UV Index.
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As we transition from winter to spring, September in Wellington, New Zealand, shines with an inviting 250 hours of sunshine, a delightful increase from the cooler months. This notable upswing not only brings warmth to the budding flowers but also heralds the end of the darker days, as September's sunshine significantly outpaces the dreary 169 hours of June. As the month progresses, the days gradually lengthen, setting a vibrant backdrop that paves the way for the summer surge in sunshine, which peaks with 336 hours in December. This gradual ascent in daylight illuminates Wellington's charming landscapes, inviting both locals and visitors to relish the stunning views and outdoor adventures in the heart of spring.
In Wellington, New Zealand, September marks a transitional period as the city shifts from winter to spring. With a sunshine probability of 47%, it sits comparatively higher than the depths of winter, yet still below the sunnier summer months. This mild climatic shift hints at a gradual increase in sunny days, following the notably clearer January and February, which boast chances of sun at 61% and 48%, respectively. As the months progress toward summer, September serves as a reminder that brighter days are on the horizon, despite still being part of the variable weather characteristic of Wellington.
As September unfolds in Wellington, New Zealand, daylight begins to stretch its arms after the winter months, offering approximately 11 hours of light. This gradual increase signals the transition from the shorter days of the colder season, where the hours dipped to only 9 hours in the depths of winter. Following September, the progression continues as October and November bring back the warmth and brightness of 13 and 14 hours of daylight, respectively. The ebb and flow of daylight hours throughout the year not only reflect the changing seasons but also the anticipation of spring’s arrival, heralding longer, sunnier days ahead in the Southern Hemisphere.
As September settles over Wellington, the city's famed winds begin to assert themselves with notable vigor, reaching an average speed of 8.9 m/s (20 mph). This marks a distinct increase from the previous months, especially compared to August's average of 8.1 m/s (18 mph). It’s clear that as winter wanes, the winds are gearing up for a lively spring, showcasing Wellington's playful yet powerful character. Following September, average wind speeds dip slightly in October to 7.1 m/s (16 mph), suggesting a transitional period before the spring breezes fully take hold. With each gust, September invites residents and visitors alike to revel in the dynamic embrace of Wellington's weather, setting the stage for the cheerful days ahead.
Weather in Wellington varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Wellington, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, the weather is cooler with average temperatures ranging from a minimum of 7°C (44°F) to a maximum of 15°C (59°F). The month is characterized by relatively high precipitation, totaling 85 mm (3.4 in) over about 12 days, and a humidity level of 83%. In contrast, January experiences milder conditions, with temperatures averaging between a minimum of 11°C (52°F) and a maximum of 23°C (73°F). Additionally, January sees significantly less rainfall, with only 33 mm (1.3 in) across 6 days and a slightly lower humidity of 79%. For more details on January weather in Wellington, you can visit Wellington weather in January.
In comparing the weather between September and February, we can see a notable shift in temperature and overall conditions. September experiences cooler temperatures, with a minimum of 7°C (44°F) and an average of 11°C (52°F), while February boasts a milder climate with temperatures ranging from a minimum of 12°C (54°F) to an average of 17°C (63°F). Additionally, February tends to be drier, with only 69 mm (2.7 in) of precipitation over 6 days, compared to September's 85 mm (3.4 in) of rainfall spread over 12 days. Humidity levels in September are slightly higher at 83%, compared to February's 79%. This makes February a more pleasant month for outdoor activities. For more details on the February climate, check out Wellington weather in February.
In September, the weather is cooler with average temperatures ranging from a minimum of 7°C (44°F) to a maximum of 15°C (59°F), accompanied by higher humidity at 83%. This month sees about 85 mm (3.4 in) of precipitation over approximately 12 days, making it relatively wet. In contrast, March experiences milder temperatures, with a minimum of 11°C (51°F) and a maximum of 20°C (69°F), and a slightly lower average humidity of 79%. Precipitation also decreases to 76 mm (3.0 in) over 9 days, indicating a drier trend. For more details on March weather, visit Wellington weather in March.
In September, the weather features cooler temperatures with a minimum of 7°C (44°F) and an average of 11°C (52°F), peaking at a maximum of 15°C (59°F). This month experiences 85 mm (3.4 in) of precipitation over about 12 days, combined with high humidity at 83%. Conversely, April offers slightly warmer conditions, starting at a minimum of 9°C (48°F) and an average temperature of 15°C (59°F) while reaching up to 19°C (67°F). Precipitation is higher in April at 104 mm (4.1 in) over 10 days, with humidity remaining relatively comfortable at 80%. For a more detailed look at the weather in April, visit Wellington weather in April.
September and May show some similarities in their weather patterns, but there are notable differences. In September, temperatures range from a minimum of 7°C (44°F) to a maximum of 15°C (59°F), with an average temperature of 11°C (52°F). This month experiences 85 mm (3.4 in) of precipitation over 12 days, accompanied by a high humidity level of 83%. In contrast, May sees slightly warmer temperatures, with a minimum of 7°C (44°F) and a maximum of 17°C (64°F), leading to an average of 13°C (56°F). The precipitation in May is similar at 88 mm (3.5 in) but occurs over just 11 days, and the humidity remains comparable at 84%. For further details on the weather in May, you can check this link: Wellington weather in May.
September and June in Wellington showcase mild temperatures but marked differences in weather patterns. September typically sees minimum temperatures around 7°C (44°F) and an average of 11°C (52°F), with maximums reaching 15°C (59°F). The month experiences approximately 85 mm (3.4 in) of precipitation over 12 days and a humidity level of 83%. In contrast, June has similar minimum temperatures but an average of 12°C (53°F) and maximums peaking at 16°C (61°F). Rainfall is slightly higher in June, totaling about 101 mm (4.0 in), also over 12 days, with humidity levels slightly elevated at 86%. For more details, you can explore Wellington weather in June.
In comparing the weather of September and July, both months share similar temperature ranges, with minimums at 7°C (44°F), average temperatures at 11°C (52°F), and maximums reaching 15°C (59°F). However, July experiences slightly higher precipitation, totaling 108 mm (4.3 in) over 13 days, compared to September’s 85 mm (3.4 in) across 12 days. Humidity levels remain relatively consistent, with July at 86% and September at 83%. For those interested in more details, visit Wellington weather in July.
In comparing the weather conditions of September and August, both months exhibit similar average temperatures, with September slightly warmer, recording a minimum of 7°C and a maximum of 15°C, compared to August's minimum of 6°C and maximum of 14°C. Precipitation levels are closely aligned as well, with September receiving 85 mm over 12 days, while August saw 89 mm also across 12 days. Both months share identical humidity levels at 83%. For a more detailed look at August's weather, visit Wellington weather in August.
In September, the weather features a mild temperature range with a minimum of 7°C (44°F), an average of 11°C (52°F), and a maximum of 15°C (59°F). This month also experiences relatively high precipitation, amounting to 85 mm (3.4 in) over 12 days, along with a humidity level of 83%. In contrast, October sees a slight increase in average temperature to 12°C (55°F), with a minimum of 6°C (44°F) and a maximum of 16°C (61°F). Precipitation decreases to 72 mm (2.8 in) across 11 days, with humidity slightly dropping to 82%. Overall, October offers a slightly warmer and drier climate compared to September. For more detailed information, you can check Wellington weather in October.
September and November exhibit notable differences in their weather patterns. In September, temperatures range from a minimum of 7°C (44°F) to a maximum of 15°C (59°F) with an average of 11°C (52°F), while November sees slightly warmer temperatures, with a minimum of 9°C (49°F), an average of 14°C (57°F), and a maximum of 18°C (64°F). Precipitation is more abundant in September with 85 mm (3.4 in) over 12 days, compared to November's 73 mm (2.9 in) over 10 days. Humidity levels remain relatively similar, with September at 83% and November at 82%. For more detailed information on November weather, you can refer to Wellington weather in November.
In September, temperatures in the region typically range from a minimum of 7°C (44°F) to a maximum of 15°C (59°F), with an average temperature of 11°C (52°F). The month experiences about 85 mm (3.4 in) of precipitation over 12 days, with humidity levels around 83%. In contrast, December sees milder conditions with minimum temperatures at 10°C (51°F) and maximums reaching up to 20°C (68°F), averaging 16°C (61°F). Although December has slightly higher precipitation at 101 mm (4.0 in) over 11 days, humidity decreases slightly to 81%. For those interested in more specifics on December weather, check out Wellington weather in December.
As September ushers in the arrival of spring, Wellington experiences a refreshing change in its weather dynamics compared to the cooler winter months. With temperatures gradually rising, daytime highs can reach around 15°C, making it feel significantly milder than the frostier winter averages. However, the charm of early spring comes with its share of rain, as the city sees frequent precipitation, totaling around 85 mm across nearly half the month. This means occasional drizzles are quite common, often accompanied by a comforting humidity of 83% that highlights the lushness of the landscape. For more details on what to expect throughout the year, visit Wellington Climate.