Swansea Temperature by Month
Swansea, Tasmania, Australia has an average annual maximum temperature of 17°C (63°F), with moderate seasonal shifts ranging from 13°C (55°F) in August to 21°C (70°F) in January. Below you'll find a full monthly breakdown and a comparison with cities worldwide.
Swansea Monthly Temperatures
The climate in Swansea experiences moderate temperature changes, with mild shifts between seasons. At night, temperatures range from 13°C (55°F) in January to 6°C (43°F) in August.
The chart below illustrates the average maximum day and minimum night temperatures in Swansea by month:
Daily lows are most common between 4 AM and 6 AM. By 3 PM temperatures reach their daily high, driven by peak solar heating.
The chart below shows the average temperature throughout the year:
Temperature: Swansea vs Australia
The map below shows the annual temperature across Australia. You can also select individual months if you want to compare a specific time of year.
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Swansea vs World: Temperature Compared
Swansea's average annual maximum temperature is 17°C (63°F). To put that in context, here's how it compares to a few well-known destinations:
Seville, Spain averages 23°C (73°F) a year — one of the warmer cities in Western Europe, with long hot summers.
Interlaken, Switzerland averages 8°C (46°F) a year, with cold winters and cool summers thanks to its Alpine setting.
Seoul, South Korea averages 18°C (64°F) a year, with four clear seasons, cold winters, and hot humid summers.
Tokyo, Japan averages 21°C (70°F) a year, with hot summers, cool winters, and a well-defined cherry blossom spring.
Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.
The readings come from a range of sources — land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.
Seasonal temperature shifts influence more than just how warm it feels — they also drive changes in rainfall, cloud cover, and wind patterns throughout the year.
Warmer air holds more moisture, which tends to mean heavier or more frequent rain during the warmer months. When temperatures drop in winter, any precipitation that does fall is more likely to come as snow or sleet, though in Swansea this rarely lasts long on the ground.
For more on Swansea's weather — including monthly rainfall, sunshine hours, and humidity — visit our Swansea climate page.
