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Christchurch in September: Weather, Average temperature and Climate

Planning a trip and want to know what the weather in Christchurch in September will be like? Take a look at our weather guide for Christchurch, based on historical data.
Check flight prices to Christchurch on Avionero:
September

Weather in Christchurch in September 2024

Good Weather
Mild
☁️
Cloudy
Planning a trip to Christchurch in September? You are in luck! The weather is generally good, with an average maximum temperature of +59°F and approximately 7 sunny days. Just be prepared for some rain, as there are usually around 5 rainy days and 46 mm of precipitation. Expect good weather and pack accordingly to enjoy the outdoors. Search flights in one click on Avionero.

Average weather

☀️
+59°F
Avg. max. temperature
+25°F
Min.
+77°F
Max.
46 mm
Total precipitation
74%
Avg. humidity
3 m/s
Avg. wind
7 ☀️
Sunny Days
18 ⛅️
Cloudy
5 🌦
Rainy
Our opinion: Christchurch has good weather in September.

Average temperature in Christchurch in September

Here are the expected maximum, average and minimum temperatures in Christchurch for September based on the historical data.
Last Year
Historical Data

Going from a maximum of +70°F during the day to a minimum of +28°F during the night, the temperature in September averages around +59°F.

The average maximum temperature goes down 43% by the end of the month, compared with the beginning of the month, from +68°F to +50°F.

Is Christchurch warm or cold in September?

Christchurch is typically mild in September.

Maximum temperatures go up compared to the previous month from +54°F to +59°F. The minimum temperature also goes up from +41°F to +43°F.

Pack a light jacket as it will be warm in the day and cool in the evenings.

Take a look at how September is compared to other months in Christchurch:

Climate in Christchurch in September

Christchurch weather looks like this, on average, in September and the surrounding months.
AugustSeptemberOctober
Avg. temperature
+54°F+59°F+63°F
Min. temperature
+23°F+25°F+27°F
Max. temperature
+72°F+77°F+82°F
Rainfall
56 mm46 mm57 mm
Wind
2 m/s3 m/s3 m/s
Humidity
79%74%72%
Air pressure
1010 HPa1009 HPa1009 HPa
Sunny days
776
Cloudy days
181819
Rainy days
656
Snowy days
000

September often has better weather than August. It’s getting warmer as September arrives. The average maximum temperature goes up from +54°F to +59°F during the day. As September arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 56 mm to 46 mm. It feels drier, as humidity decreases from 79% to 74%. Winds are stronger in comparison to August, going up from 2 m/s to 3 m/s on average. The amount of sunny days stay about the same, averaging 7 sunny days during the month.

October brings much the same weather, it remains good.

Wind

Wind speed in Christchurch in September based on historical data.
Last Year
Historical Data

The average wind speed is 3 m/s getting up to 8 m/s which is a medium breeze. You can feel it, especially getting out of the water.

The average wind speed in Christchurch is gradually increasing during September, going from 1 m/s to 1 m/s over the course of the month.

Rain

Amount of rainfall in mm during September in Christchurch based on historical data.
Last Year
Historical Data
Total precipitation in September is about 43 mm, with a 40% chance of rain on a typical day. The maximum amount of rainfall per day is around 22 mm, which is considered light rain. September is a pretty wet month with over 12 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of wellies.
Here’s how September is compared with other months in the amount of precipitation, total mm:
Christchurch wettest month is December, where a typical day has a 19% chance of precipitation and 60 mm of rainfall per day. February, on the other hand, is the driest month with a mere 14% chance of precipitation and 44 mm of rainfall per day.

How was the weather last September in Christchurch?

This is the weather in Christchurch in September 2023:
1 September
☁️
+68°F
2 September
☁️
+63°F
3 September
☀️
+66°F
4 September
🌧️
+62°F
5 September
🌧️
+49°F
6 September
☀️
+51°F
7 September
☁️
+57°F
8 September
☁️
+57°F
9 September
☀️
+56°F
10 September
☁️
+57°F
11 September
🌫️
+54°F
12 September
☁️
+59°F
13 September
🌧️
+59°F
14 September
☀️
+51°F
15 September
☀️
+57°F
16 September
☁️
+53°F
17 September
☁️
+57°F
18 September
☁️
+60°F
19 September
☁️
+67°F
20 September
☁️
+67°F
21 September
☁️
+57°F
22 September
☁️
+58°F
23 September
☁️
+59°F
24 September
☁️
+58°F
25 September
☁️
+57°F
26 September
☁️
+64°F
27 September
☁️
+66°F
28 September
☁️
+66°F
29 September
🌧️
+70°F
30 September
☁️
+51°F
In September 2023 Christchurch had 5 sunny days, 20 cloudy days, and 4 rainy days. The average maximum temperature was +59°F, with an absolute maximum of +70°F and a minimum of +48°F. The average humidity was 74%, with a maximum of 100% and a minimum of 29%. The average wind speed was 3 m/s, with a maximum of 12 m/s and a minimum of 0 m/s.
Are you planning a trip in September?

Climate Change Over the Years

This is how Christchurch climate has changed over the last 43 years.

The climate in Christchurch in September has not changed that much over the last 43 years.

The average temperature was the lowest in 1992 (+56°F) and the highest in 2021 (+67°F). The driest year was 2006 with only 11 mm of rainfall, and the wettest year was 1995 with 118 mm.

FAQ

Frequently asked questions about the weather in Christchurch in September:

Is September a good time to visit Christchurch?

September is a really good time to go to Christchurch. The weather is nice so plan your packing around outdoor activities and exploring. Check out other good time to visit Christchurch.

Can you sunbathe in Christchurch in September?

September has mild temperatures in Christchurch. Not ideal for sunbathing, but still good for daytime outdoor activities, but plan for cool evenings. Pack a light jacket and shorts!

Is Christchurch rainy in September?

Christchurch is usually dry in September. Plan your packing around outdoor activities and exploring.

Is it sunny in Christchurch in September?

Usually, it’s not very sunny in Christchurch in September, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.

Other cities in New Zealand

Check out the weather for other cities in New Zealand.

Monthly weather in Christchurch

Source of the data

For this page, we’ve looked at the typical weather in Christchurch, based on historical hourly weather data from January 1, 1979, to December 31, 2022.

For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.