Snow Hill Island
Antarctica
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Snow Hill Island, Antarctica

September, the first month of the spring, in Snow Hill Island, is still an extremely cold month, with average temperature varying between -20°C (-4°F) and -13°C (8.6°F).

Temperature

In September, the average high-temperature is essentially the same as in August - a still frigid cold -13°C (8.6°F). In Snow Hill Island, Antarctica, the average low-temperature is -20°C (-4°F).

Rainfall

In Snow Hill Island, in September, it is raining for 1 days, with typically 5mm (0.2") of accumulated precipitation. Throughout the year, in Snow Hill Island, there are 21 rainfall days, and 76mm (2.99") of precipitation is accumulated.

Sea temperature

In Snow Hill Island, in September, the average water temperature is -1°C (30.2°F).
Note: For swimming, this is considered life-threatening and very dangerous. The water feels painfully cold, and hyperventilation quickly occurs. A specialized swimsuit is mandatory to reduce thermal damage.

Daylight

In September, the average length of the day is 11.5h.

Sunshine

The average sunshine in September is 4h.

UV index

The average daily maximum UV index in Snow Hill Island is 1. A UV Index of 2, and less, symbolizes a minimal health hazard from unprotected exposure to the Sun's UV rays for ordinary individuals.
Note: In September, the average maximum UV index of 1 translate into the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.

What is the temperature in September in Snow Hill Island?

The average high-temperature, in September, is -13°C (8.6°F), while the average low-temperature is -20°C (-4°F).

How many days does it rain in September in Snow Hill Island?

In Snow Hill Island, Antarctica, in September, during 1 rainfall days, 5mm (0.2") of precipitation is typically accumulated.

What is the water temperature in September in Snow Hill Island?

In September, the average sea temperature is -1°C (30.2°F). For swimming, this is considered extremely cold, dangerous, and life-threatening. Unless suitably protected with insulated waterproof clothing, hypothermia quickly occurs.

What is the average length of the day in September in Snow Hill Island?

In Snow Hill Island, Antarctica, the average length of the day in September is 11.5h.

How many hours of sunshine does Snow Hill Island have in September?

The average sunshine in September in Snow Hill Island is 4h.

What is the UV index intensity in September in Snow Hill Island?

In Snow Hill Island, the average daily maximum UV index in September is 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from the exposure to the Sun's UV rays.
Average temperature in September - Snow Hill Island, Antarctica
  • Average high temperature in September: -13°C

The warmest months (with the highest average high temperature) are January and December (3°C).
Months with the lowest average high temperature are July and August (-14°C).

  • Average low temperature in September: -20°C

The month with the highest average low temperature is January (-1°C).
The coldest months (with the lowest average low temperature) are July and August (-21°C).

Average rainfall in September - Snow Hill Island, Antarctica
  • Average rainfall in September: 5mm

The wettest month (with the highest rainfall) is May (12mm).
The driest months (with the least rainfall) are January and December (2mm).

Average rainfall days in September - Snow Hill Island, Antarctica
  • Average rainfall days in September: 1 days

Months with the highest number of rainy days are March, April and May (3 days).
Months with the least rainy days are January, February, September, October, November and December (1 days).

Average sea temperature in September - Snow Hill Island, Antarctica
  • Average sea temperature in September: -1°C

The best months for swimming (with the highest average sea temperature) are January, February and December (0°C).
The coldest month (with the lowest average sea temperature) is May (-2°C).

Average daylight in September / Average sunshine in September - Snow Hill Island, Antarctica
  • Average daylight in September: 11.5h

The month with the longest days is December (Average daylight: 21.1h).
The month with the shortest days is June (Average daylight: 4.2h).

  • Average sunshine in September: 4h

The month with the most sunshine is December (Average sunshine: 10h).
Months with the least sunshine are June and July (Average sunshine: 0).

Average UV index in September - Snow Hill Island, Antarctica
  • Average UV index in September: 1

Months with the highest UV index are November and December (UV index 5).
Months with the lowest UV index are April, May, June, July and August (UV index 0).