September weather forecast
Snow Hill Island, Antarctica

Weather in Snow Hill Island becomes notably softer in September. The temperature, although still well into the negatives, rises from August. This drop in temperature fluctuations signals the retreat of extreme winter. Snowfall reduces considerably, as rainfall reaches one of its lowest points of the year. The extension of daylight hours certainly adds to the overall thaw as we approach October.

Temperature

Snow Hill Island's shift into September is marked by a subtle change to a still frigid cold -13°C from August's -14°C in temperature. During the month of September, the temperature falls to an average of -20°C.

Rainfall

In September, the rain falls for 1 days. Throughout September, 5mm of precipitation is accumulated. In Snow Hill Island, during the entire year, the rain falls for 21 days and collects up to 76mm of precipitation.

Sea temperature

In September, the average sea temperature in Snow Hill Island, Antarctica, is -1°C.
Note: With respect to swimming, this presents an immediate life risk. Instant loss of breath control impedes logical thought. The use of a specialized swimsuit is vital to curb thermal loss.

Daylight

The average length of the day in September in Snow Hill Island is 11h and 31min.
On the first day of September in Snow Hill Island, sunrise is at 22:50 and sunset at 08:46 NZST. On the last day of the month, sunrise is at 22:06 and sunset at 11:10 NZDT.
Note: On Sunday, 24. September 2023, at 02:00, Daylight Saving Time starts, and the time zone changes from NZST to NZDT. Daylight Saving Time lasts until Sunday, 07. April 2024, at 03:00; consequently, the time zone reverts from NZDT to NZST.

Sunshine

In Snow Hill Island, the average sunshine in September is 4h.

UV index

In Snow Hill Island, the average daily maximum UV index in September is 1. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for average individuals.
Note: The maximum daily UV index, 1 in September, converts into the following recommendations:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.