Rotorua Weather in September
September in Rotorua brings moderate temperatures, with highs of 15°C (59°F) and nights dropping to 6°C (43°F). It's the rainiest month of the year, so come prepared with waterproof gear.
Rainfall in Rotorua in September
Since this month has the highest rainfall, keep an umbrella with you to handle sudden showers. You can expect rain on roughly 16 days based on historical data, averaging 132 mm (5.2 in) for the month. This is a wet month with frequent and often heavy showers. Both the number of rain days and the total rainfall are high.
Temperature in Rotorua in September
September in Rotorua sees highs of 15°C (59°F) and lows of 6°C (43°F) overnight. The difference between afternoon and evening temperatures is usually noticeable. With overnight lows of 6°C (43°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.
Sunshine in Rotorua in September
The city usually sees around 155 hours of sunlight, indicating a moderately sunny period.If you prefer enjoying temperate temperatures and rain-free days, January and March 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 Rotorua's climate page.
Rotorua Temperature in September
Min Temperature
6°C (43°F)
Max Temperature
15°C (59°F)
Chance of Rain
52%
Precipitation
132 mm (5.2 in)
Rainy days
16 days
Humidity
81%
Sunshine
155 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Rotorua typically stay consistent throughout September, with daily highs averaging around 15°C (59°F). Nights are cold, with lows typically ranging from 7°C (45°F) to 9°C (48°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 Rotorua in September
Browse day-by-day weather records for Rotorua spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Rotorua historical weather extremes in September
Based on 35 years of weather observations (1990-2025), these are the most extreme conditions recorded in Rotorua.
- The hottest September day on record in Rotorua reached 21°C (70°F) (September 20, 2023).
- The lowest daytime temperature in September was 8°C (46°F), recorded on September 12, 2025.
- Rotorua registered its coldest September night on September 7, 2007, with temperatures dropping to -2°C (28°F).
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 →
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What to Wear in Rotorua in September
The weather can swing between comfortable and chilly in September, so flexibility is key. Pack a variety of tops, at least one warm layer, and both shorts and long pants. This gives you options no matter what the day brings. Expect heavy rainfall, so bring good rain protection and waterproof bags. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.What To Do in Rotorua 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 Rotorua's climate page.
Temperature Rainfall Sunshine Humidity
See the full Rotorua climate overview or explore weather in New Zealand.
