Climate of Tasmania
Tasmania has a cool temperate climate with four distinct seasons. The highest recorded maximum temperature in Tasmania is at Scamander on 30 January 2009, during the 2009 southeastern Australia heat wave. Tasmania's lowest recorded minimum temperature is on 30 June 1983, at Butlers Gorge, Shannon, and Tarraleah.
Rainfall in Tasmania is highly differentiated for a relatively compact island. It follows a complicated pattern rather analogous to that found on large continents at the same latitude in the northern hemisphere. Rainfall increases from around at Ouse in the centre to at Cradle Valley in the northwestern highlands.
Sunshine is also highly differentiated, with average quotients ranging from around 4 hours a day in the South West of the island, up to around 7 hours daily in the North East around the Launceston area. It shares a similar climate to places like the United Kingdom, New Zealand, and the Pacific Northwest region of the United States, and Canada.
Climate data
Rainfall
In southern Australia, most rain falls during the winter months and is normally associated with frontal systems. Elevation also has an important influence on rainfall, with the mountain areas of western Tasmania receiving higher rainfall totals.The wettest part of the State is the west coast, where there is a strong winter maximum in rainfall: January and February typically averages only one-third the rainfall of July and August, though even in the driest months rain usually falls on every second day and the number of rainy days per year is much greater than on any part of the Australian mainland. Further east in the Lake Country, annual rainfall declines to around, whilst in the Midlands, annual rainfall is as low as at Ross and generally below. The eastern part of Tasmania has rainfall more evenly distributed throughout the year than in the west, and most months receive very similar averages.
The densely populated northern coast is much drier than the western side, with annual rainfall ranging from in Launceston to in Burnie in the north west and in Scottsdale located further to the east. Most rain falls in winter, and in summer the average can be as low as per month in Launceston. The east coast is wetter than the Midlands, with an average annual rainfall ranging from in St. Helens to around in Swansea. Here the rainfall is evenly distributed over the year but can be very erratic as heavy rainfalls from the warm Tasman Sea are quite frequent. Whereas a three-day fall of occurs only once every fifty years on the north coast, it occurs on average once every four or five years around Swansea and Bicheno. On 7–8 June 1954, there were many falls as large as in two days in that area. The east coast is sometimes called the "sun coast" because of its sunny climate.
In the south-east, including Hobart, Spring receives slightly more rainfall than Winter, and Spring also has slightly more rainy days than Winter.
Summer
Summer is from December to February when the average maximum sea temperature is. On land, maximum temperatures average to along the coast and in the lowlands, such as around Launceston. The hottest areas of the state are in the valleys west of Hobart, where summer temperatures regularly rise above. During heatwaves, temperatures in this region can rise above. The Tasmanian highlands are much cooler, with Liawenee, located on the Central Plateau, one of the coldest places in Australia with temperatures in February ranging between to.Winter
The winter months are June, July, and August, and are generally the wettest and coolest months in the state, with most elevated areas receiving considerable snowfall. Winter maximums range from along the coast, to on the Central Plateau, thanks to frequent cold fronts from the Southern Ocean. Minimum temperatures however are warmer than mainland Australia, most of coastal Tasmania rarely drops below freezing and daily temperature variation is often very narrow. Elevated, inland areas can however drop below during clear nights between fronts, while during snowy weather the maximum temperature may not rise above.Spring
The Spring months are September, October, and November. It is a season of frequent changes, as winter weather patterns begin to take the shape of summer patterns, although snowfall is still common in mountainous areas until October. Spring is the windiest time of the year with afternoon sea breezes starting to take effect on the coast.Autumn
Autumn is from March to May and is a season of transition, as summer weather patterns gradually take on the shape of winter patterns. The beginning of Autumn tend to be warmer and sunnier than Spring, particularly in Northern Tasmania.Locations
Hobart
has a mild temperate oceanic climate, with four distinct seasons. The highest temperature recorded was 41.8 °C on 4 January 2013 and the lowest was −2.8 °C on 25 June 1972. Compared to other major Australia cities Hobart has the second least daily average hours of sunshine, with 5.9 hours. The city rarely receives snow in winter; however, the adjacent Mount Wellington is often seen with a covering in winter, and it has received unseasonal snowfalls in all seasons, including summer. Though snow is unusual in general at sea level in Australia, Hobart has most probably had the most sea level snowfalls out of any State Capital.Launceston
has a mild, temperate climate,with four distinct seasons with some Mediterranean climate tendencies. The city is located in the Tamar Valley and is surrounded by many large hills and mountains. With this type of topography, Launceston's weather patterns can change in a short period of time.
Ouse
Due to its inland location, Ouse has relatively warm summers and cool winters with a high diurnal range and low precipitation throughout the months. Frost is common in the winter.Burnie
The average temperature in summer ranges from 12.5 to 21 °C with drier non-sea breeze days as warm as 27 °C, with around 16 hours of sunshine per day. In winter, temperature ranges from 6 to 13 °C, and only 8 hours of sunshine. Relative humidity averages over 60% for the year in the afternoon.Burnie averages 994 mm of rainfall per year. Most of the rain is in the second half of the year from July to December.