September 12 is generally a great time to visit Christchurch. While there is a slight chance of rain (18%), showers are usually brief. Expect comfortable 14°C weather. As it's peak season for Christchurch, we recommend booking your stay well in advance to secure the best rates.
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Essential Travel Info for Christchurch
Currency
NZD
$ New Zealand dollar
Language
English
+2 more
Driving
Left side
Safety
Very High Safety
GPI: 1.269
Christchurch Weather Forecast for September 12
"Mild & Comfortable. Expect average highs of 13.9°C. 18% chance of rain."
What to Wear in Christchurch in September
Based on historical data for September 12, Christchurch typically experiences temperatures between 4.8°C and 13.9°C. We recommend packing heavy coat, scarf, gloves to stay comfortable. Trends suggest it will stay mostly dry (18% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for Christchurch
Smart Suitcase
- Heavy Coat
- Scarf
- Gloves
Average High
13.9°C
Daytime Peak
Average Low
4.8°C
Nighttime Low
Feels Like
13.4°C
🌤️ Feels accurate
Rain Chance
18%
Avg 0.8mm if it rains
Cloud Cover
55%
Overcast
Pressure
1010.5 hPa
High volatility
Christchurch Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 99% of the time. Safe to plan outdoor activities with confidence.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 15 for extended outdoor time
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?
Dew Point
9.7°C
Dry air
Heat Stress
Low
No heat warning
🙂 Best outdoor time:
Any time during daylight hours
Marine Conditions
Marine Life
No special warnings. Enjoy the swim!
Swim Index
❄️ Cold Water Hazard
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in New Zealand
Flight Traffic
High
93/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~116
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Christchurch
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
07:39
☀️ Noon
13:27
🌇 Sunset
19:15
⏱️ Daylight
11h 35m
Wind Speed
20.7 km/h
Moderate wind
Sunshine
8.8 hrs
Direct Sun (Cloud-free)
Humidity
76%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Christchurch
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 Christchurch
Travel Comfort Index
Real-time tourism conditions
Weather Quality
☀️ Excellent
Tourist Crowds
🟡 Busy
Price Level
💰💰💰 Expensive
Health & Wellbeing
Meteo-Health Forecast
Rapid pressure changes detected. High risk for meteosensitive people.
Mild discomfort possible for arthritic conditions.
Fish are active due to pressure changes.
Air quality is excellent. Perfect for outdoor activities.
Regional Safety Profile
Seismic Activity
Active seismic zone. Multiple earthquakes per year.
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, Christchurch on September 12 averages 13.9°C with a 18% precipitation probability. Wedding/Outdoor Event Score: 86/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Christchurch Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
September 14
14.2°C • 14% rain
Score
94
September 8
13.4°C • 14% rain
Score
91
September 7
13.2°C • 14% rain
Score
90
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (September 12) in other destinations
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📍 Is Christchurch Worth Visiting on September 12?
Planning a trip to Christchurch on September 12? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year offers a bracing seasonal atmosphere averaging 13.9°C with a 18% historical precipitation risk.
✈️ Travel Logistics: Approximately 116 landing slots available daily during this period, indicating manageable crowd levels.
💉 Health Advisory: 6 vaccinations are recommended for New Zealand, including COVID-19.
🌊 Coastal Conditions: Water temperature averages 10.7°C (polar plunge). Wave conditions are generally lake-like with heights around 0m.
📊 Historical Extremes: The hottest September 12 recorded in the last 30 years saw temperatures hit 17.9°C in 2024, while the coldest dropped to 1.6°C in 2020.