Kaikoura Weather in September
What's the weather like in Kaikoura (Canterbury) in September 2025?
The climate in Kaikoura during September can be summarized as cool and a little damp.
September is in the spring in Kaikoura and is typically the 4th coldest month of the year. Daytime maximum temperatures average around a cool 11°C (52°F), whilst at night 2°C (36°F) is normal.
| Daytime temperature | 11.3°C 52.3°F |
|---|---|
| Nightly temperature | 2°C 35.5°F |
| Average temperature | 6.6°C 43.9°F |
| Daily sunshine | 5 hrs |
| Avg rainfall | 83 mm 3.3 ins |
| Rainy days | 12 days |
| Sea temperature | 10.9°C 51.7°F |
| Humidity | 70% |
| Windspeed | 13.4kph 8 mph |
On average September is the 5th driest month of the year in Kaikoura with around 83mm 3.3 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 12 days, although this may vary considerably.
On the flip side this corresponds to an average of 5 hours of sunshine per day.
September temperatures in Kaikoura
September rainfall
September hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Kaikoura in September 2025.
Other monthly averages
Best places to visit in September
Kaikoura weather stats
| Hottest month: | January | 19.9°C 67.8°F |
|---|---|---|
| Driest month: | February | 59mm 2.3ins |
| Sunniest month: | February | 7.1hrs |
| Coldest month: | July | 7.2°C 45°F |
| Wettest month: | July | 117mm 4.6ins |
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