Climate, weather and tides at Davis

Snow at Davis after a blizzard
Snow at Davis after a blizzard (Photo: Chris Hill)

Davis has a relatively mild climate and is known as the ‘Riviera of the South'.

Despite the fact that it is at higher latitude than Casey or Mawson, the rock of the Vestfold Hills moderates the local climate. From an extreme maximum in summer of +13°C, the winter temperature reaches ‑40°C.

In the Davis summer, the sun stays above the horizon for most of December and January and in winter it stays below the horizon for about two months from early June. During the winter, the ‘day’ is made up of one to two hours of twilight.

Being distant from the continental ice sheet and away from the katabatic wind, Davis has an average yearly wind speed of around 20km/h.

Tidal predictions 

Tides are measured for many different research and operational purposes. Such measurements have a practical value in determining sea level for mapping elevations and ocean depths, tidal predictions for shipping, and in the calibration of satellite altimeters.

Tide measurements also have a research value. Sea level data helps us understand long-term climate change as well as continental readjustment, heat transfer across the continental shelf, and other oceanographic phenomena including observation of Southern Ocean oscillation.