September weather forecast
McMurdo, Antarctica

Weather in September

September, the first month of the spring in McMurdo, is also a dangerously cold month, with temperature in the range of an average high of -20.8°C (-5.4°F) and an average low of -29.4°C (-20.9°F).

Temperature

In September, the average high-temperature is essentially the same as in August - a still life-threatening cold -20.8°C (-5.4°F). In McMurdo, the average low-temperature is -29.4°C (-20.9°F).

Humidity

September is the least humid month in McMurdo, with an average relative humidity of 55.8%.

Rainfall

In McMurdo, during 3 rainfall days, 11.8mm (0.46") of precipitation is typically accumulated. In McMurdo, during the entire year, the rain falls for 46.1 days and collects up to 200.9mm (7.91") of precipitation.

Snowfall

Months with snowfall are January through December. In McMurdo, during September, snow falls for 13.3 days and regularly aggregates up to 76mm (2.99") of snow. Throughout the year, there are 181.3 snowfall days, and 1484mm (58.43") of snow is accumulated.

Daylight

In McMurdo, the average length of the day in September is 10h and 42min.
On the first day of the month, sunrise is at 09:23 and sunset at 16:23 NZST. On the last day of September, sunrise is at 06:35 and sunset at 20:51 NZDT.
Note: On Sunday, 25. September 2022, at 02:00, Daylight Saving Time starts, and the time zone changes from NZST to NZDT. Daylight Saving Time lasts until Sunday, 02. April 2023, at 03:00; consequently, the time zone reverts from NZDT to NZST.
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FAQ

What is the least humid month in McMurdo?

September is the least humid month in McMurdo, with an average relative humidity of 55.8%.

What is the average humidity in September in McMurdo?

The average relative humidity in September is 55.8%.

How many days does it rain in September in McMurdo?

In McMurdo, in September, during 3 rainfall days, 11.8mm (0.46") of precipitation is typically accumulated.

How much does it snow in McMurdo in September?

In McMurdo, Antarctica, in September, snow falls for 13.3 days, with typically accumulated 76mm (2.99") of snow.

How many hours of daylight does McMurdo have in September?

In September, the average day length in McMurdo is 10h and 42min.

When is the sunrise / sunset in September in McMurdo?

On the first day of September in McMurdo, Antarctica, sunrise is at 09:23 and sunset at 16:23 NZST. On the last day of the month, sunrise is at 06:35 and sunset at 20:51 NZDT.

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

On Sunday, 25. September 2022, at 02:00, Daylight Saving Time starts in McMurdo, and the time zone changes from NZST to NZDT. DST ends on Sunday, 02. April 2023, at 03:00.

Average temperature in September
McMurdo, Antarctica

Average temperature in September - McMurdo, Antarctica
  • Average high temperature in September: -20.8°C

The warmest month (with the highest average high temperature) is January (-0.2°C).
The month with the lowest average high temperature is August (-22.8°C).

  • Average low temperature in September: -29.4°C

The month with the highest average low temperature is January (-5.5°C).
The coldest month (with the lowest average low temperature) is August (-31.8°C).

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Average humidity in September
McMurdo, Antarctica

Average humidity in September - McMurdo, Antarctica
  • Average humidity in September: 55.8%

The month with the highest relative humidity is December (67%).
The month with the lowest relative humidity is September (55.8%).

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Average rainfall in September
McMurdo, Antarctica

Average rainfall in September - McMurdo, Antarctica
  • Average rainfall in September: 11.8mm

The wettest month (with the highest rainfall) is June (24.9mm).
The driest month (with the least rainfall) is November (9.5mm).

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Average rainfall days in September
McMurdo, Antarctica

Average rainfall days in September - McMurdo, Antarctica
  • Average rainfall days in September: 3 days

The month with the highest number of rainy days is June (5.7 days).
The month with the least rainy days is November (2.4 days).

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Average snowfall in September
McMurdo, Antarctica

Average snowfall in September - McMurdo, Antarctica
  • Average snowfall in September: 76mm

The month with the highest snowfall is February (224mm).
The months with the least snowfall are January and August (66mm).

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Average snowfall days in September
McMurdo, Antarctica

Average snowfall days in September - McMurdo, Antarctica
  • Average snowfall days in September: 13.3 days

The month with the highest number of snowfall days is March (17.8 days).
The month with the least snowfall days is January (12.8 days).

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Average daylight in September
McMurdo, Antarctica

Average daylight in September - McMurdo, Antarctica
  • Average daylight in September: 10h and 42min

The month with the longest days is March (Average daylight: 13h and 46min).
The months with the shortest days are January, May, June, July, November and December (Average daylight: 0h and 0min).

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