September weather forecast and climate
McMurdo, Antarctica

September, the first month of the spring, in McMurdo, is still a life-threatening cold month, with average temperature ranging between max -20.8°C (-5.4°F) and min -29.4°C (-20.9°F).

Temperature

In September, the average high-temperature is practically 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

With an average relative humidity of 55.8%, September is the least humid month.

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 in McMurdo are January through December. In September, in McMurdo, it is snowing for 13.3 days. Throughout September, 76mm (2.99") of snow is accumulated. In McMurdo, during the entire year, snow falls for 181.3 days, and aggregates up to 1484mm (58.43") of snow.

Daylight

The average length of the day in September in McMurdo, Antarctica, is 10.8h.

What is the temperature in September in McMurdo?

The average high-temperature, in September, in McMurdo, Antarctica, is -20.8°C (-5.4°F), while the average low-temperature is -29.4°C (-20.9°F).

What is the least humid month in McMurdo?

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

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 September, in McMurdo, the rain falls for 3 days. Throughout September, 11.8mm (0.46") of precipitation is accumulated.

How many days does it snow in September in McMurdo?

In McMurdo, 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 McMurdo, Antarctica, the average length of the day in September is 10.8h.
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).

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%).

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).

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).

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

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

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).

Average daylight in September - McMurdo, Antarctica
  • Average daylight in September: 10.8h

Months with the longest days are January, November and December (Average daylight: 24h).
Months with the shortest days are May, June and July (Average daylight: 0h).