Oneroa Weather in September
September in Oneroa brings moderate temperatures, with daytime highs of 16°C (61°F) and nights around 12°C (54°F). Quite a bit of rainfall is expected, around 97 mm (3.8 in), so pack an umbrella.
Rainfall in Oneroa in September
The climate data from previous years indicates about 18 days of rain, averaging 97 mm (3.8 in) for the month. The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.
Temperature in Oneroa in September
If you're visiting Oneroa in September, expect highs of 16°C (61°F) and overnight lows around 12°C (54°F). Even when the weather is stable, mornings and evenings can still feel distinctly cool. At 12°C (54°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.
Sunshine in Oneroa in September
The area experiences a moderate amount of sunshine, with approximately 151 hours of sunlight expected. This means a decent mix of sun and overcast.If you prefer dry days with pleasant temperatures, January, February, March, April and December typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit New Zealand, check out our Oneroa's climate page.
Oneroa Temperature in September
Min Temperature
12°C (54°F)
Max Temperature
16°C (61°F)
Chance of Rain
58%
Precipitation
97 mm (3.8 in)
Rainy days
18 days
Humidity
81% *
Sunshine
151 hours *
Percentage Sunshine
44% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Oneroa typically stay consistent throughout September, with daily highs averaging around 16°C (61°F). Nights are cool, with lows typically ranging from 9°C (48°F) to 11°C (52°F).
Average temperatures in September
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Oneroa in September
Browse day-by-day weather records for Oneroa spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Oneroa historical weather extremes in September
Our historical data for Oneroa spans 1976 to 2025, revealing these weather extremes.
- On September 21, 2023, temperatures climbed to 22°C (72°F), marking the warmest September day on record.
- The lowest daytime temperature in September was 9°C (48°F), recorded on September 8, 1993.
- Nighttime temperatures dropped to 3°C (37°F) on September 13, 2012, marking the coldest September night on record.
Best Places in New Zealand in September
Find out more about the weather in New Zealand and which places have the best travel conditions in this month. See all of New Zealand in September →
perfect weather
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tolerable
unpleasant
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What to Wear in Oneroa in September
Comfortable temperatures call for an easy wardrobe in September. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Expect heavy rainfall, so bring good rain protection and waterproof bags. Bring sunglasses since you'll have some sunny periods throughout the monthWhat To Do in Oneroa in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit New Zealand, check out our Oneroa's climate page.
Temperature Rainfall Sunshine Humidity
See the full Oneroa climate overview or explore weather in New Zealand.
