Last updated: August 31, 2025
September in Opua, New Zealand offers a refreshing transition into spring, with temperatures ranging from a pleasant 5°C (42°F) to a maximum of 20°C (69°F), averaging around 13°C (56°F). This month is known for its variable weather, characterized by 80 mm (3.2 in) of precipitation spread over approximately 12 days, contributing to a humidity level of 78%. Visitors can expect a mix of sunny days and occasional showers, making it an ideal time for exploring the lush landscapes and vibrant flora that begin to awaken in this picturesque region.
In September, Opua experiences a gentle transition from winter to spring, with temperatures steadily rising as the days grow longer. The minimum temperature hovers around 5°C (42°F), while the average climbs to a mild 13°C (56°F), and the maximum reaches a pleasant 20°C (69°F). This month marks a notable increase from the colder depths of July and August, signaling the arrival of warmer weather and the first hints of spring blooms. As the chill of winter fades, visitors can expect a refreshing atmosphere perfect for exploring the stunning landscapes of New Zealand's Bay of Islands.
In September, Opua, New Zealand, experiences a moderate level of precipitation, with a total of 80 mm (approximately 3.2 inches) falling over 12 days. This marks a slight decrease from the wetter months of June and July, yet it remains consistent compared to August, which recorded 92 mm of rainfall over more days. As spring begins to unfold, the rainfall can contribute significantly to the lush landscapes, making September a time of transition. The data hints at fluctuating patterns, with the region noticing a peak in precipitation earlier in the year, while the onset of September signals a gradual move towards the drier months ahead. As these trends evolve, residents and visitors alike can expect a blend of sunny spells interspersed with refreshing rain.
September in Opua, New Zealand, experiences a humidity level of 78%, reflecting a pattern of moderate moisture characteristic of the region. This month stands out as the humidity stabilizes after a brief rise during the cooler winter months of June and July, both at 80%. As spring approaches, Opua's humidity begins to mirror the lighter levels of summer, seen in the 78% and 79% readings of the following months, October and November. The gradual decline from the peak humidity levels earlier in the year suggests a smooth transition toward the warmer, drier conditions of summer, while still maintaining a pleasant maritime atmosphere.
As September ushers in the beginning of spring in Opua, New Zealand, residents and visitors can expect a UV Index of 7, categorized as high, with a burn time of about 25 minutes. This marks a slight increase from the previous months, indicating an important shift as the days grow longer and sunnier. Following the cool winter months where the UV levels hovered around 3 to 5, the rise to high emphasizes the need for sun protection to prevent skin damage, even during extended outdoor activities. As the UV Index primed for further increases in October, it’s a timely reminder for everyone to stay vigilant and safeguard their skin. For more details on UV levels throughout the year, visit Opua UV Index.
UV Risk Categories
As September unfolds in Opua, New Zealand, the sunny embrace of late winter transitions thoughtfully into spring, bringing with it 253 hours of radiant sunshine. This marks an uplifting increase from the cooler winter months, showcasing a clear upward trend as the days grow warmer. Following the relatively mild August with its 231 hours, September hints at a delightful shift in the season, paving the way for the brilliance of October, which typically boasts 269 hours of sun. This gradual ascent in daylight hours not only enhances the landscape’s beauty but also invites locals and visitors alike to revel in the outdoor splendor of the upcoming months, culminating in an impressive average of 321 hours by December. The rhythm of sunshine in Opua paints a vibrant picture of renewal and warmth as the year progresses.
In September, Opua, New Zealand, sees a 40% chance of sunny weather, which positions it as a transitional month as spring approaches. While this sunny likelihood is slightly below the peak summer months like January at 50%, it surpasses the gloomier late year months of October and November, which both dip to 29% and 27% respectively. This moderate probability is echoed in the earlier winter months of June (40%) and July (41%), indicating a gradual improvement in weather as the country welcomes the warmer season. Thus, while September may not guarantee sun-soaked days, it offers a promising transition from the cooler, cloudier months preceding it.
As September rolls in Opua, New Zealand, daylight begins to gradually lengthen, offering around 11 hours of sunlight—the first glimpse of the shift towards longer days following the winter months. This month marks a transition point in the annual cycle, with daylight increasing from just 9 hours in June to a rejuvenating 12 hours by October. The trend is clear: as spring approaches, Opua shakes off the shorter days of winter, paving the way for warmer months characterized by abundant sunlight. This increasing duration not only brightens the landscape but also revitalizes outdoor activities, creating an inviting atmosphere for residents and visitors alike.
As September rolls into Opua, New Zealand, the winds pick up a brisk pace, averaging 5.1 m/s (11 mph). This marks a noticeable increase from the gentler breezes of the earlier months. After a summer of calm, where winds rarely exceeded 4.7 m/s, it’s clear that spring is ushering in a shift—a trend that peaks in July with the year’s highest average wind speed of 5.3 m/s (12 mph) before gradually tapering off again in the coming months. September’s winds not only signal a fresh change in the season but also hint at the playful energy that this picturesque coastal town embraces as it transitions into the warmer months ahead.
Weather in Opua varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Opua, focusing on differences in temperature, rainfall, humidity, and UV levels.
September weather is characterized by cooler temperatures, with lows of 5°C (42°F) and an average of 13°C (56°F). The month sees a maximum temperature of 20°C (69°F) and experiences considerable rainfall, averaging 80 mm (3.2 in) over 12 days, alongside a humidity level of 78%. In contrast, January offers much warmer conditions, with lows of 12°C (53°F) and a pleasant average of 20°C (69°F). The maximum temperature can reach 28°C (82°F), and precipitation is significantly reduced to 49 mm (1.9 in) over just 5 days, maintaining a similar humidity level at 79%. For more details on January weather, you can visit Opua weather in January.
In September, the weather tends to be cooler, with temperatures ranging from a minimum of 5°C (42°F) to a maximum of 20°C (69°F) and an average of 13°C (56°F). This month experiences about 80 mm (3.2 in) of precipitation over 12 days, contributing to a relatively humid environment with 78% humidity. In contrast, February brings warmer conditions, with minimum temperatures of 13°C (56°F) and maximums reaching 30°C (86°F), averaging around 20°C (69°F). Although February has slightly more precipitation at 94 mm (3.7 in) over just 9 days, the humidity remains the same at 78%. For more details on February weather in Opua, visit Opua weather in February.
In comparing the weather of September and March, September tends to be cooler with temperatures ranging from a minimum of 5°C (42°F) to a maximum of 20°C (69°F), averaging around 13°C (56°F). This month also sees a higher precipitation level of 80 mm (3.2 in) over 12 days, coupled with a humidity level of 78%. In contrast, March boasts milder temperatures, with a minimum of 12°C (53°F) and a maximum of 26°C (79°F), yielding an average of 19°C (67°F). Precipitation is slightly lower in March at 69 mm (2.7 in) over the same number of days, while humidity remains relatively stable at 76%. For more specific details on the weather patterns, you can refer to Opua weather in March.
September and April present distinct weather profiles, showcasing the transition of seasons. In September, temperatures range from a cooler minimum of 5°C (42°F) to a comfortable average of 13°C (56°F), peaking at a maximum of 20°C (69°F). The month experiences substantial rainfall, with 80 mm (3.2 in) spread over about 12 days and a relatively high humidity of 78%. In contrast, April enjoys milder weather, with temperatures starting at a minimum of 9°C (49°F), averaging 17°C (63°F), and reaching up to 24°C (76°F) at its hottest. Though April sees slightly more precipitation at 83 mm (3.3 in) over 9 days, the overall humidity remains lower at 75%. For more insights into the month of April, you can visit Opua weather in April.
In September, the weather tends to be cooler, with average temperatures ranging from a minimum of 5°C (42°F) to a maximum of 20°C (69°F). The month also sees higher precipitation levels, averaging 80 mm (3.2 in) over about 12 days, and a humidity of 78%. In contrast, May offers slightly warmer conditions, with temperatures ranging from a minimum of 6°C (43°F) to a maximum of 22°C (71°F). Precipitation is lower at 59 mm (2.3 in) spread over 8 days, and the humidity remains quite comparable at 77%. For a more detailed look at May weather patterns, check out Opua weather in May.
In comparing the weather of September and June, both months offer similar minimum and average temperatures, with September slightly warmer with a maximum of 20°C (69°F) compared to June's 19°C (67°F). However, June experiences higher precipitation, totaling 126 mm (5.0 in) over 10 days, while September has 80 mm (3.2 in) across 12 days. Humidity levels are also comparable, with September at 78% and June at 80%. For more detailed information about June weather patterns, you can check out Opua weather in June.
In comparing the weather of September and July, both months exhibit relatively mild temperatures, but September tends to be slightly warmer, with average temperatures reaching 13°C (56°F) compared to July's 12°C (54°F). July experiences a slightly cooler minimum temperature of 3°C (38°F) versus September's 5°C (42°F). However, July sees more precipitation overall, with 106 mm (4.2 in) falling over just 9 days, compared to September's 80 mm (3.2 in) spread over 12 days. Humidity levels remain similar in both months, hovering around 78% in September and 80% in July. For more detailed insights into July weather, you can check Opua weather in July.
In comparing the weather of September to that of August, we see a slight warming trend. September boasts a minimum temperature of 5°C (42°F), an average of 13°C (56°F), and a maximum of 20°C (69°F), while August features similar min temperatures but slightly cooler averages and maximums at 5°C (41°F), 12°C (55°F), and 19°C (66°F). Additionally, September experiences a decrease in precipitation, with 80 mm (3.2 in) over 12 days compared to August's 92 mm (3.6 in) over 13 days. Both months share the same humidity level of 78%. For more detailed information on August weather, you can visit Opua weather in August.
September weather features a cooler climate, with average temperatures ranging from a minimum of 5°C (42°F) to a maximum of 20°C (69°F) and a notable humidity of 78%. The month receives around 80 mm (3.2 in) of precipitation over 12 days, making it relatively wet. In contrast, October sees a slight increase in temperatures, with averages from 7°C (44°F) to 22°C (71°F) and similar humidity levels at 79%. However, October also experiences more rainfall, totaling 104 mm (4.1 in) across just 10 days. For more detailed insights into October weather, you can check the following link: Opua weather in October.
In September, temperatures start to cool down with a minimum of 5°C (42°F) and an average of 13°C (56°F), reaching a maximum of 20°C (69°F). The month sees around 80 mm (3.2 in) of precipitation over approximately 12 days, along with a humidity level of 78%. In contrast, November experiences milder weather, with temperatures ranging from a minimum of 8°C (46°F) to a maximum of 26°C (78°F) and an average of 17°C (62°F). Precipitation decreases slightly to 65 mm (2.6 in), still spread across 12 days, while humidity remains similar at 79%. For more details on November weather, you can check Opua weather in November.
September and December present quite a contrast in weather patterns. In September, temperatures range from a chilly 5°C (42°F) at night to a comfortable 20°C (69°F) during the day, with an average of 13°C (56°F). The month sees about 80 mm (3.2 in) of precipitation over 12 days, creating a damp atmosphere with humidity levels lingering at 78%. In comparison, December boasts milder temperatures, with nighttime lows of 10°C (51°F) and daytime highs reaching up to 27°C (80°F), averaging 19°C (66°F). Additionally, December experiences less rainfall, totaling 54 mm (2.1 in) over 10 days, while maintaining the same humidity of 78%. For more specific insights into the December weather, visit Opua weather in December.
As September ushers in the spring, Opua experiences a notable transition in weather compared to the colder winter months. With temperatures gradually rising and a refreshing average of 13°C, the chill of winter gives way to milder days, even though cool nights still linger. Rainfall is moderate, with about 80 mm spread across 12 days, making the air feel consistently moist, accompanied by humidity levels around 78%. This blend of cool temperatures and increased precipitation sets the stage for the vibrant growth of flora, marking a time of renewal and awakening in the landscape. For a deeper insight into how Opua's climate evolves throughout the year, visit Opua Climate.