Last updated: August 31, 2025
Nestled along the stunning coastline of New Zealand, Port Chalmers experiences a diverse September weather pattern characterized by a maximum temperature of 22°C (72°F) and an average of 9°C (48°F), with lows dipping to -2°C (28°F). This transitional month sees about 57 mm (2.2 in) of rain, spread across 12 days, contributing to the lush greenery of the region. The high humidity at 83% adds a refreshing chill to the air, making it a unique blend of crispness and warmth. Whether you're exploring local trails or enjoying a cozy coffee by the harbor, September in Port Chalmers is a captivating experience imbued with the essence of spring.
As spring begins to awaken in Port Chalmers during September, temperatures gradually rise, offering a pleasing transition from the chilly depths of winter. The month sees a minimum of -2°C (28°F) that hints at lingering frost, while the average temperature climbs to a comfortable 9°C (48°F). Warmest days can reach up to 22°C (72°F), inviting residents and visitors alike to embrace the outdoors. This gentle increase in temperature marks a noticeable shift in weather patterns, with each passing day bringing a brighter promise of the warmer months ahead.
September in Port Chalmers brings a moderate precipitation total of 57 mm (2.2 in), falling over 12 days. This month marks a slight uptick from the drier winter months of June and July, and it's indicative of the transitional weather patterns leading into spring. While September's rainfall is less than the heavier October downpours, it signals a gradual increase in moisture—setting the stage for the wetter months ahead. The consistent precipitation underscores Port Chalmers' climate variability, as it shakes off the colder months in favor of the more vibrant, rain-soaked landscapes that spring typically brings.
In September, Port Chalmers experiences a moderate humidity level of 83%, marking a slight decline from the wetter winter months. After a peak of 85% in both June and July, humidity begins to recede, reminiscent of the transitioning seasons. This shift signifies the approach of spring, as the air becomes crisper and more invigorating, providing a refreshing contrast to the preceding chill. Overall, the trend in humidity levels reveals a gradual increase through the cooler months, followed by a gentle dip into September, setting the stage for drier days ahead as summer approaches.
As September arrives in Port Chalmers, the UV Index settles at a moderate level of 5, with a burn time of approximately 30 minutes. This marks a shift from the winter months of June and July, during which the index lingered at a low 2, providing much more forgiving sun exposure. Compared to the higher indices seen in the summer months, like January's extreme 13, September serves as a gentle reminder of the changing seasons. As we move further into spring, it’s essential to stay informed and protected; for more insights, check out the detailed Port Chalmers UV Index.
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September in Port Chalmers, New Zealand, is a delightful transition into spring, bringing 240 hours of sunshine. This marks an uplifting shift from the winter months, with daylight hours gradually increasing from 158 hours in June to over 200 hours in August. As the days grow longer, September serves as a precursor to the vibrant energy of the approaching summer, foreshadowed by the 253 hours of sunshine in October and the peak of 319 hours in December. The trends reveal a rhythm of light that nurtures the budding season, setting the stage for the sunny days ahead. Whether you're out for a stroll or enjoying the coastal views, September's golden rays are a warm welcome back to outdoor exploration after the cooler months.
In September, Port Chalmers, New Zealand, experiences a notable 46% chance of sunny weather, marking just a slight dip from the early spring sunny peak in April at 47%. This trend indicates a promising transition as winter gives way to spring, with increasing daylight hours and warmer temperatures. Following months show a more significant drop in sunny days, particularly in October and November, where chances decrease to 27% and 28% respectively. Overall, September stands out as a time when residents and visitors alike can appreciate more sunshine, making it an inviting period for outdoor activities and exploration.
As September unfolds in Port Chalmers, New Zealand, daylight begins to extend, offering a refreshing glimpse of the upcoming spring. With 11 hours of daylight, this month marks a subtle shift from the shorter days of winter, which saw only 8 hours in June. Following the gradual increase seen in the preceding months, September's daylight sets the stage for a brighter October, where the duration increases to 13 hours. This trend of longer days not only signals the end of winter’s grasp but also invites residents and visitors alike to embrace the vibrant seasonal activities that spring has to offer. As nature awakens, the days will continue to grow longer, culminating in a celebratory 15 hours by December.
As September unfolds in Port Chalmers, New Zealand, the winds begin to pick up slightly, averaging 3.8 m/s (9 mph). This gentle increase marks a transition from the calmer breezes of winter, which dipped to their lowest point in June at 2.9 m/s (6 mph). From August’s moderate gusts of 3.7 m/s (8 mph), September's slightly stronger winds hint at the approach of spring, leading into a similar wind strength expected in October. This subtle uptick not only enhances the refreshing atmosphere of the coastal town but also enriches the experience for locals and visitors alike, inviting outdoor adventures and the soothing sound of rustling leaves.
Weather in Port Chalmers varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Port Chalmers, focusing on differences in temperature, rainfall, humidity, and UV levels.
When comparing the weather in September to that of January, we observe notable differences in temperature, precipitation, and humidity. September features a cooler climate with a minimum temperature of -2°C (28°F) and an average of 9°C (48°F), while January brings warmer conditions with a minimum of 5°C (42°F) and an average of 15°C (60°F). In terms of rainfall, September experiences 57 mm (2.2 in) over 12 days, whereas January has significantly higher precipitation at 96 mm (3.8 in) distributed over 13 days. Despite the increased rainfall in January, its overall humidity is slightly lower at 79% compared to September's 83%. For a detailed look at January weather specifics, you can visit Port Chalmers weather in January.
September and February exhibit contrasting weather patterns. In September, temperatures range from a chilly minimum of -2°C (28°F) to a pleasant maximum of 22°C (72°F), with an average of 9°C (48°F). The month sees about 57 mm (2.2 in) of precipitation over 12 days, coupled with high humidity levels at 83%. In comparison, February presents much warmer conditions, with temperatures ranging from a minimum of 2°C (37°F) to a sweltering maximum of 32°C (91°F) and an average of 15°C (59°F). Precipitation also increases, totaling around 100 mm (3.9 in) over 10 days, though humidity drops to a milder 76%. For a deeper look at February weather specifics, you can check Port Chalmers weather in February.
In September, the weather is generally cooler with temperatures ranging from a minimum of -2°C (28°F) to a maximum of 22°C (72°F), averaging around 9°C (48°F). This month experiences higher humidity at 83% and receives about 57 mm (2.2 in) of precipitation over approximately 12 days. In contrast, March exhibits milder temperatures, with a minimum of 3°C (38°F) and a maximum of 29°C (85°F), averaging 14°C (57°F). Although it has slightly less precipitation at 52 mm (2.1 in) across about 10 days, the humidity is lower at 78%. For a more detailed look at the weather specifics in March, visit Port Chalmers weather in March.
September and April exhibit notable differences in weather, reflecting the transition from late winter to early spring and then into early autumn. September tends to have cooler temperatures, with a minimum of -2°C (28°F) and an average of 9°C (48°F), compared to April’s slightly warmer minimum of 0°C (31°F) and average of 11°C (52°F). While September experiences a maximum temperature peaking at 22°C (72°F), April can reach up to 26°C (79°F). Both months see a comparable amount of precipitation, with September averaging 57 mm (2.2 in) over 12 days and April slightly higher at 69 mm (2.7 in) over 11 days. Humidity levels are relatively similar too, with September at 83% and April at 81%. For detailed information on April weather conditions, you can visit Port Chalmers weather in April.
September and May in Port Chalmers exhibit subtle differences in weather conditions. In September, temperatures range from a minimum of -2°C (28°F) to a maximum of 22°C (72°F), with an average of 9°C (48°F), while May sees slightly cooler temperatures, with a minimum of -3°C (26°F) and a maximum of 20°C (68°F), averaging around 8°C (47°F). Precipitation is a little more prevalent in September, totaling 57 mm (2.2 in) over 12 days, compared to May's 45 mm (1.8 in) across 9 days. Interestingly, humidity levels are quite similar, with September at 83% and May just a notch higher at 84%. For a closer look at May weather specifics, check out Port Chalmers weather in May.
When comparing the weather in September and June, it's evident that September is generally milder, with average temperatures reaching 9°C (48°F) compared to June's 6°C (43°F). September also experiences higher maximum temperatures, peaking at 22°C (72°F), while June's maximum is slightly cooler at 21°C (70°F). Additionally, September sees more precipitation, averaging 57 mm (2.2 in) over 12 days, compared to June's 37 mm (1.4 in) over 9 days. Humidity levels in both months are quite similar, with September at 83% and June at 85%. For more details on June weather, you can check Port Chalmers weather in June.
In comparing the weather of September and July, September generally offers milder temperatures, with a minimum of -2°C (28°F), an average of 9°C (48°F), and a maximum of 22°C (72°F). This is a notable improvement over July, which experiences cooler conditions, marked by a minimum of -5°C (23°F), an average of 5°C (42°F), and a maximum of just 16°C (62°F). Precipitation levels are relatively similar, with September receiving 57 mm (2.2 in) over 12 days and July slightly higher at 63 mm (2.5 in) across 10 days. Both months feature high humidity, with September at 83% and July at 85%. For a detailed look at July weather in this region, visit Port Chalmers weather in July.
In comparing the weather between September and August, September tends to be slightly warmer with a minimum temperature of -2°C (28°F) and an average of 9°C (48°F), as opposed to August, which has a minimum of -4°C (25°F) and an average of 7°C (45°F). The maximum temperature in September reaches up to 22°C (72°F), a notable rise from August's maximum of 20°C (68°F). However, September sees an increase in precipitation, recording 57 mm (2.2 in) over 12 days compared to August's 40 mm (1.6 in) with the same number of rainy days. Humidity levels are fairly similar, with September at 83% and August at 84%. For those interested in a more detailed look at weather patterns, check out Port Chalmers weather in August.
In September, temperatures range from a chilly minimum of -2°C (28°F) to a pleasant maximum of 22°C (72°F), with an average of 9°C (48°F). The month experiences 57 mm (2.2 in) of precipitation over 12 days, accompanied by relatively high humidity at 83%. In contrast, October sees slightly warmer conditions, with temperatures ranging from 0°C (32°F) to 24°C (75°F), and an average temperature of 10°C (51°F). However, it also brings increased rainfall, totaling 81 mm (3.2 in) across 14 days, and a marginally lower humidity of 80%. For more detailed weather information, check out Port Chalmers weather in October.
September and November weather in Port Chalmers show notable differences in temperature and precipitation patterns. In September, temperatures range from a chilly -2°C (28°F) at night to a comfortable 22°C (72°F) during the day, with an average of 9°C (48°F). The month experiences 57 mm (2.2 in) of precipitation over 12 days, coupled with a high humidity level of 83%. In contrast, November offers milder nights with temperatures that don't drop below 1°C (34°F) and can reach up to 27°C (81°F), averaging 13°C (55°F). This month also sees increased rainfall, totaling 96 mm (3.8 in) over 15 days, but with slightly lower humidity at 78%. For more detailed information, you can check Port Chalmers weather in November.
In September, the weather is characterized by cooler temperatures, with a minimum of -2°C (28°F) and an average of 9°C (48°F), peaking at 22°C (72°F). The month experiences 57 mm (2.2 in) of precipitation over about 12 days, coupled with a relatively high humidity level of 83%. In contrast, December brings milder temperatures, with a minimum of 4°C (39°F), an average of 14°C (58°F), and maximum temperatures reaching up to 27°C (80°F). This month sees increased precipitation at 105 mm (4.1 in) over approximately 15 days and slightly lower humidity at 81%. For a detailed look at December weather, check out Port Chalmers weather in December.
As we transition into September, Port Chalmers experiences a notable shift in weather patterns. The cool crispness of late winter gives way to the beginnings of spring, bringing milder temperatures that underscore a more inviting atmosphere. While rain remains a frequent visitor with 12 days of precipitation and an average humidity of 83%, the charm of emerging blooms and lengthening daylight hours creates a refreshing ambiance that distinguishes this month from the harsher winter days. For a detailed understanding of how September fits into the broader climatic trends of the region, explore our comprehensive breakdown at Port Chalmers Climate.