September weather forecast and climate
Mount Cook, New Zealand

What is the temperature in September in Mount Cook?

The average high-temperature, in September, in Mount Cook, is 11.9°C (53.4°F), while the average low-temperature is 1.5°C (34.7°F).

How many days does it rain in September in Mount Cook?

In Mount Cook, New Zealand, in September, it is raining for 13.7 days, with typically 297.4mm (11.7") of accumulated precipitation.
Average temperature in September - Mount Cook, New Zealand
  • Average high temperature in September: 11.9°C

The warmest month (with the highest average high temperature) is February (20.7°C).
The month with the lowest average high temperature is July (6.5°C).

  • Average low temperature in September: 1.5°C

The month with the highest average low temperature is January (9°C).
The coldest month (with the lowest average low temperature) is July (-2.2°C).

Average humidity in September - Mount Cook, New Zealand
  • Average humidity in September: 72.4%

The month with the highest relative humidity is June (83.2%).
The month with the lowest relative humidity is September (72.4%).

Average rainfall in September - Mount Cook, New Zealand
  • Average rainfall in September: 297.4mm

The wettest month (with the highest rainfall) is December (487.2mm).
The driest month (with the lowest rainfall) is February (278.4mm).

Average rainfall days in September - Mount Cook, New Zealand
  • Average rainfall days in September: 13.7 days

The month with the highest number of rainy days is October (16.7 days).
The month with the lowest number of rainy days is February (10.9 days).

Average daylight in September / Average sunshine in September - Mount Cook, New Zealand
  • Average daylight in September: 11.8h

The month with the longest days is December (Average daylight: 15.4h).
The month with shortest days is June (Average daylight: 9h).

  • Average sunshine in September: 4.3h

Months with most sunshine are January and February (Average sunshine: 6h).
The month with least sunshine is June (Average sunshine: 2.2h).

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