30YearWeather
Rotorua, September 20
Rotorua street view during September
Historical Weather Analysis

Rotorua Weather on September 20 — Best Time to Visit?

Based on 30 years of historical data, we have the answer.

cloudy

14.2°C

High

6.7°C

Low

35%

Rain

🌤️ Feels like 13.9°C

partly-cloudy-day
YES, GOOD CHOICE
Peak Season

September 20 is generally a great time to visit Rotorua. While there is a slight chance of rain (35%), showers are usually brief. Expect comfortable 14°C weather. Rotorua is seeing high visitor numbers, so iconic spots may be busier than usual.

Currency

NZD

$ New Zealand dollar

Language

English

+2 more

Driving

Left side

Safety

Very High Safety

GPI: 1.269

Rotorua Weather Forecast for September 20

"Mild & Comfortable. Expect average highs of 14.2°C. 35% chance of rain."

What to Wear in Rotorua in September

Based on historical data for September 20, Rotorua typically experiences temperatures between 6.7°C and 14.2°C. We recommend packing light jacket, long pants, umbrella to stay comfortable. With a 35% chance of rain, keeping a raincoat or umbrella handy is a smart move.

Complete Packing Guide

Weekly breakdown & essential items for Rotorua

View Guide

Smart Suitcase

  • Light Jacket
  • Long Pants
  • Umbrella

Average High

extreme-hot

14.2°C

Daytime Peak

Average Low

extreme-cold

6.7°C

Nighttime Low

Feels Like

partly-cloudy-day

13.9°C

🌤️ Feels accurate

Rain Chance

rain

35%

Avg 2.4mm if it rains

Cloud Cover

cloudy

64%

Overcast

Pressure

pressure

1016.7 hPa

High volatility

Rotorua Weather Conditions & UV Index

Weather Confidence

30-year variance analysis

95%Highly Predictable

Based on 10 years of data

Temperature
±2.8°CModerate
Precipitation
18-53%Predictable

🎯 This date historically delivers consistent weather 95% of the time. Safe to plan outdoor activities with confidence.

Sun Exposure

UV Index & Safety Guide

2.7Low
036811+

Protection Needed

SPF 15 for extended outdoor time

Time to Sunburn

Type I-II

🔴 30 min to burn

Type III-IV

🟡 45 min to burn

Type V-VI

🟢 75 min to burn

UV estimate based on latitude, season & cloud cover. Actual UV may vary.

Outdoor Comfort

How pleasant is it outside?

62Moderate
TemperatureCool
HumidityMuggy
WindBreezy

Dew Point

11.5°C

Pleasant

Heat Stress

Low

No heat warning

😐 Best outdoor time:
Any time during daylight hours

Travel & Logistics Insights

Local Calendar

Business Day

Standard hours in New Zealand

Flight Traffic

Busy

77/100 pressure index

Health Advisory

Required

1 vaccine • View Details →

Landing Slots

~10

Daily arrival options (inc. codeshare)

Sunrise, Sunset & Wind in Rotorua

Daylight & Sun

Solar Elevation Cycle

🌅 Sunrise

07:10

☀️ Noon

13:10

🌇 Sunset

19:10

⏱️ Daylight

12h 0m

Golden Hour
Morning07:10 - 07:44
18:35 - 19:10Evening

Wind Speed

wind

18.4 km/h

Gentle breeze

Sunshine

clear-day

8.2 hrs

Direct Sun (Cloud-free)

Humidity

humidity

84%

Humid / Damp

Travel Intelligence

Exclusive flight analytics & health data for Rotorua

Smart Flight Estimator

Airport-to-Airport Logistics

unlock smart flight estimates

Add your home location in settings to see airport details.

Travel Health & Safety in Rotorua

Travel Comfort Index

Real-time tourism conditions

Weather Quality

⛅ Good

72/100

Tourist Crowds

🟡 Busy

85/100

Price Level

💰💰💰 Expensive

90/100

Health & Wellbeing

Meteo-Health Forecast

70Score
Atmospheric Pressure1016.7 hPa
Volatility:High
Migraine RiskHigh

Rapid pressure changes detected. High risk for meteosensitive people.

Joint Pain RiskLow

Weather unlikely to affect joint pain.

Fishing IndexExcellent

Fish are active due to pressure changes.

Air Quality Forecast
23AQI
Good
PM2.5 Concentration4.6 µg/m³

Air quality is excellent. Perfect for outdoor activities.

Regional Safety Profile

Very High

Seismic Activity

Very high seismic risk. Ring of Fire territory.

Total events (30y):717
In Sep (30y):67
Last in Sep:2025-09-22
💡 High seismic zone. Familiarize yourself with 'Drop, Cover, Hold On' procedures.

Travel Alert: This region has elevated natural risks. We recommend registering with your embassy and keeping emergency numbers handy.

"According to 30YearWeather's analysis of 30 years of NASA satellite data, Rotorua on September 20 averages 14.2°C with a 35% precipitation probability. Wedding/Outdoor Event Score: 82/100."

— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology

Rotorua Weather History (2010–2024)

Temperature History

Loading chart...

Hall of Fame

Records from last 10 years

Hottest
2023
22.3°C
Coldest
2025
2.1°C
Rainiest
2022
14.7mm

Better Alternatives Nearby

Consider these dates within ±7 days

💡 Moving your event by a few days could significantly improve weather conditions

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Same date (September 20) in other destinations

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📍 Is Rotorua Worth Visiting on September 20?

Planning a trip to Rotorua on September 20? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year offers a bracing seasonal atmosphere averaging 14.2°C with a 35% historical precipitation risk.

✈️ Travel Logistics: Approximately 10 landing slots available daily during this period, indicating manageable crowd levels.

💉 Health Advisory: 6 vaccinations are recommended for New Zealand, including COVID-19.

📊 Historical Extremes: The hottest September 20 recorded in the last 30 years saw temperatures hit 22.3°C in 2023, while the coldest dropped to 2.1°C in 2025.

Rotorua Weather FAQ