September weather forecast
Mount Cook, New Zealand

Weather in September

The first month of the spring, September, is a fresh month in Mount Cook, New Zealand, with an average temperature varying between 1.5°C (34.7°F) and 11.9°C (53.4°F).

Temperature

In Mount Cook, the average high-temperature in September slightly increases from a frosty 8.6°C (47.5°F) in August to a fresh 11.9°C (53.4°F). In Mount Cook, the average low-temperature is 1.5°C (34.7°F).

Humidity

With an average relative humidity of 72.4%, September is the least humid month in Mount Cook.

Rainfall

In September, the rain falls for 13.7 days. Throughout September, 297.4mm (11.71") of precipitation is accumulated. In Mount Cook, during the entire year, the rain falls for 163.4 days and collects up to 4484.7mm (176.56") of precipitation.

Daylight

In September, the average length of the day in Mount Cook, New Zealand, is 11h and 47min.
On the first day of September, sunrise is at 7:06 am and sunset at 6:12 pm NZST. On the last day of the month, sunrise is at 7:14 am and sunset at 7:44 pm NZDT.
Note: On Sunday, 25. September 2022, at 2:00 am, Daylight Saving Time starts, and the time zone changes from NZST to NZDT. Daylight Saving Time lasts until Sunday, 02. April 2023, at 3:00 am; consequently, the time zone reverts from NZDT to NZST.

Sunshine

The average sunshine in September in Mount Cook is 4.3h.
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FAQ

What is the least humid month in Mount Cook?

With an average relative humidity of 72.4%, September is the least humid month.

What is the average humidity in September in Mount Cook?

In Mount Cook, the average relative humidity in September is 72.4%.

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 (11.71") of accumulated precipitation.

What is the average length of the day in September in Mount Cook?

In September, the average day length in Mount Cook is 11h and 47min.

When is the sunrise / sunset in September in Mount Cook?

In September, on the first day of the month, sunrise is at 7:06 am and sunset at 6:12 pm NZST. On the last day of the month, sunrise is at 7:14 am and sunset at 7:44 pm NZDT.

When does Daylight Saving Time (DST) start in September in Mount Cook?

On Sunday, 25. September 2022, at 2:00 am, Daylight Saving Time starts, and the time zone changes from NZST to NZDT. DST ends on Sunday, 02. April 2023, at 3:00 am.

How long on average sun shines in September in Mount Cook?

In Mount Cook, the average sunshine duration in September is 4.3h.

Average temperature in September
Mount Cook, New Zealand

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).

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Average humidity in September
Mount Cook, New Zealand

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%).

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Average rainfall in September
Mount Cook, New Zealand

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 least rainfall) is February (278.4mm).

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Average rainfall days in September
Mount Cook, New Zealand

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 least rainy days is February (10.9 days).

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Average daylight in September /
Average sunshine in September
Mount Cook, New Zealand

Average daylight in September / Average sunshine in September - Mount Cook, New Zealand
  • Average daylight in September: 11h and 47min

The month with the longest days is December (Average daylight: 15h and 22min).
The month with the shortest days is June (Average daylight: 9h and 0min).

  • Average sunshine in September: 4.3h

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

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