Christchurch
September
Weather in Christchurch for September 2025
Your guide to Christchurch weather in September - trends and predictions
Wind Warning - See hour by hour.
Until now, September 2025 in Christchurch is slightly cooler than the historical average by -1.7 °C.
The forecast for the upcoming days in Christchurch predicts a temperature of 14.8 °C, which is slightly above the historical average.
In general, the average temperature in Christchurch at the beginning of September is 14.6 °C. As the month progressed, temperatures tended to slightly decrease, reaching an average of 14.4 °C by the end of September.
Christchurch experiences moderate rainfall in September, with an average of 8 rainy days and a total precipitation of 167.7 mm.
Official Weather Alert ⚠️
Temperatures
Rain 🌧️
22
Dry days
8
Rainy days
0
Snow days
17°/2°
Temperatures
22 km/h
Avg max wind
75 %
Avg humidity
Christchurch Weather September
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Temperatures trend during September in Christchurch
See the weather trend as well as the moving average line
September weather in Christchurch day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Sunny | 16° /4° | 0 mm | 5 | |
| 2 Sept. |  Overcast | 15° /5° | 0.6 mm | 4 | |
| 3 Sept. | Sunny | 14° /5° | 0.3 mm | 5 | |
| 4 Sept. | Sunny | 14° /5° | 0.4 mm | 5 | |
| 5 Sept. | Overcast | 13° /4° | 0.7 mm | 4 | |
| 6 Sept. | Sunny | 14° /4° | 0.7 mm | 4 | |
| 7 Sept. |  Patchy rain possible | 16° /5° | 0.4 mm | 5 | |
| 8 Sept. | Sunny | 11° /3° | 1.8 mm | 4 | |
| 9 Sept. |  Partly cloudy | 15° /3° | 0 mm | 5 | |
| 10 Sept. |  Heavy rain at times | 15° /5° | 5.5 mm | 5 | |
| 11 Sept. | Patchy rain possible | 13° /3° | 1.1 mm | 4 | |
| 12 Sept. | Overcast | 14° /3° | 0 mm | 4 | |
| 13 Sept. |  Moderate or heavy rain shower | 13° /4° | 4.2 mm | 4 | |
| 14 Sept. | Patchy rain possible | 11° /3° | 2.4 mm | 4 | |
| 15 Sept. | Sunny | 12° /3° | 0 mm | 4 | |
| 16 Sept. | Sunny | 13° /8° | 0 mm | 0.9 | |
| 17 Sept. | Partly cloudy | 19° /10° | 0 mm | 0.8 | |
| 18 Sept. |  Moderate rain | 16° /6° | 5.1 mm | 0.9 | |
| 19 Sept. | Sunny | 10° /3° | 0 mm | 0.9 | |
| 20 Sept. | Sunny | 14° /4° | 0 mm | 0 | |
| 21 Sept. | Partly cloudy | 17° /11° | 0 mm | 5 | |
| 22 Sept. | Sunny | 16° /9° | 0 mm | 5 | |
| 23 Sept. | Partly cloudy | 12° /7° | 0 mm | 4 | |
| 24 Sept. | Sunny | 15° /5° | 0 mm | 4 | |
| 25 Sept. | Sunny | 16° /6° | 0 mm | 5 | |
| 26 Sept. | Sunny | 14° /9° | 0 mm | 5 | |
| 27 Sept. | Patchy rain possible | 17° /9° | 1.6 mm | 4 | |
| 28 Sept. | Sunny | 14° /7° | 0 mm | 5 | |
| 29 Sept. | Patchy rain possible | 14° /5° | 0.6 mm | 3 | |
| 30 Sept. | Patchy rain possible | 11° /4° | 3.4 mm | 4 | |
| Next | |||||
Important Notice
Our weather forecast for Christchurch in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Christchurch forecast closer to your planned date for the most up-to-date weather information.
Change Month
Christchurch in September - FAQ
What are the expected maximum and minimum temperatures in Christchurch during September?
During September, expect a variety of temperatures with highs around 17° and lows near 2°, suitable for diverse activities and preferences.
How much rainfall should be expected in Christchurch during September?
Significant rainfall exceeding 167.7 mm is expected in Christchurch during September, occurring over more than 8 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Christchurch in September 2025?
Christchurch typically sees 0.9 cm of snowfall during September.
What are the typical wind conditions in Christchurch during September?
The average wind speed in Christchurch during September is 22 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Christchurch
Explore the daily rainfall trends and prepare for Christchurchs September weather 💧
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