
Australia is one of the sunniest countries in the world, with an abundance of sun and many big cities that get fewer than 90 days of overcast weather per year. The country's hot desert regions cover most of its landmass, and its tropical areas are characterised by high humidity. The sunniest places in Australia are Port Hedland and Broome, which get only 22 overcast days per year. WA is known as Australia's unofficial sunshine state, with Perth receiving an average of 5.5 peak sun hours per day.
| Characteristics | Values |
|---|---|
| Sunniest State in Australia | WA (unofficial) |
| Number of peak sun hours | More than other areas in Australia |
| Average peak sun hours in Perth | 5.5 hours per day |
| Average number of overcast days in Port Hedland | 22 days per year |
| Average number of overcast days in Kalgoorlie | 49 days per year |
| Average number of overcast days in Melbourne | 113.9 days per year |
| Average number of overcast days in Albany | 96.3 days per year |
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What You'll Learn

Port Hedland and Broome are Australia's sunniest cities
Australia is one of the sunniest countries in the world, with many big cities that get fewer than 90 days of overcast weather per year. Most of its population lives on the eastern coast, which offers a relatively pleasant climate all year round. However, Port Hedland and Broome are the sunniest cities in Australia, with just 22 overcast days annually. Port Hedland, in particular, gets over twice as many clear days as partly cloudy days.
Port Hedland and Broome are located in Western Australia, which is known as the country's unofficial "sunshine state". The region experiences hot semi-arid and desert climates, with extremely high summer temperatures. For example, in Port Hedland, daily maximums exceed 38–39 °C (100–102 °F) for about six months of the year, and nights offer little relief with minimum temperatures that don't drop below 26 °C (79 °F) in the hottest months.
The high temperatures and low rainfall in Western Australia make it an ideal location for solar energy. The region receives longer peak sun hours, which can significantly increase the amount of energy generated by solar panels. This abundance of sunshine also makes it a great place to enjoy outdoor activities and a high quality of life.
While Port Hedland and Broome are the sunniest cities, other places in Australia that are known for their sunny weather include Perth, Darwin, Cairns, Townsville, Sydney, and Brisbane. Perth, the capital of Western Australia, receives an average of 8 hours of sunshine per day, or 3,200 hours per year, making it the sunniest city on the continent.
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WA is Australia's unofficial 'sunshine state'
Australia is one of the sunniest countries in the world, with many of its big cities experiencing fewer than 90 days of overcast weather per year. The country's abundance of sunshine makes it an ideal location for solar energy conversion. While most of Australia's population lives on the eastern coast, which offers a pleasant climate year-round, the tropical regions of Darwin, Cairns, Townsville, and their surrounding areas are known for their sunny weather during the dry season.
However, when it comes to the sunniest state, Western Australia (WA) stands out as Australia's unofficial "sunshine state". WA boasts more peak sun hours than other parts of the country, making it a prime location for solar energy solutions. The city of Perth, for example, receives an average of 5.5 peak sun hours per day, and even during winter, most of WA gets enough peak sun hours to efficiently power solar panels.
The abundance of sunshine in WA has practical benefits for those considering solar energy options. With a solar and battery setup, residents can take advantage of the long peak sun hours to generate more energy and reduce their reliance on grid power. This not only leads to significant cost savings on energy bills but also contributes to a cleaner environment by lowering carbon emissions.
WA's sunny climate is also a drawcard for those seeking a pleasant outdoor lifestyle. The state offers a range of sunny destinations, from the mild temperatures of Kalgoorlie to the sun-soaked cities of Broome and Port Hedland, which boast extremely low numbers of overcast days annually.
So, while there may be no official title, WA's status as Australia's unofficial sunshine state is well-deserved, and its abundant sunshine provides a range of benefits for residents and clean energy enthusiasts alike.
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$63.95

Darwin is sunny all year round
Australia is known for its sunny days and beautiful beaches, and Darwin is a prime example of this. Located in the Top End of the Northern Territory, Darwin enjoys warm, sunny weather all year round. The region has a tropical climate with two distinct seasons: the Wet and the Dry. Each season lasts for about six months, and both offer something unique.
During the wet season, from November to April, Darwin experiences high humidity, monsoonal rains, and storms. However, it is still considered a beautiful time to visit. The average temperature ranges from 24.7°C to 32°C (76.5°F - 89.6°F), and the humidity can push past 80%. January is the wettest month, with an average rainfall of 429mm (17 inches), but it is also when the landscape is at its most lush and vibrant, with plants and animals flourishing. The wet season is also known for its spectacular lightning storms, which locals eagerly await, often watching from beachside restaurants and bars.
The dry season, from May to October, brings warm, dry sunny days and cool nights. Temperatures typically range from 21.6°C to 31.8°C (70.9°F - 89.2°F), and humidity levels drop to around 60-65%. The dry season is a popular time for outdoor events and activities such as bushwalking, hiking, camping, and cycling. It's also the perfect time to visit nearby Kakadu National Park, known for its extraordinary biodiversity and breathtaking landscapes. The average temperature during these months is around 30°C, with little chance of rain and low humidity.
Darwin's sunny weather is a significant drawcard for tourists, and it's essential to take precautions against the sun's rays. Visitors are advised to use SPF30+ sunscreen and wear sun-smart clothing, including hats and sunglasses, to protect themselves from sunburn. The UV index in local weather reports can help guide sun protection measures.
While Darwin experiences sunny weather throughout the year, the amount of sunshine varies month to month. August shines with an average of 316 hours of sunshine, while February sees the least with 165 hours. However, even in its wettest month, Darwin still enjoys sunny days, and the city's annual rainfall is relatively low compared to other tropical destinations.
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Adelaide is sunny but cold in winter
While Western Australia is known as the country's unofficial "sunshine state", Adelaide, the capital city of South Australia, is also known for its sunny days. However, during the winter months of June to August, Adelaide experiences a temperature drop, with average temperatures ranging from 8°C to 16°C. Frosts are common in the nearby Adelaide Hills, and June is typically the wettest month.
Despite the colder temperatures, Adelaide still boasts a significant amount of sunshine during winter. The city is known for its Mediterranean climate, characterised by mild to cool winters and hot, dry summers. Even during the coldest months, Adelaide receives an abundance of daylight, with the sun typically rising around 7:20 am and setting around 5:15 pm in June.
The winter season in Adelaide marks a transition from the hot summer months. The city experiences a notable decrease in temperature, with frosts and rainfall becoming more prevalent. The weather can be changeable, with some days reaching cooler temperatures, while others may surprise with a warm spell.
Although the temperature drops, Adelaide's winter weather is relatively mild compared to other parts of Australia. The city's lowest recorded temperature was −0.4 °C in June 1982, which is still significantly warmer than the winter temperatures experienced in many other regions.
Overall, Adelaide offers a unique blend of sunny days and cool temperatures during the winter season. While the city experiences a colder climate compared to the hot summer months, it still benefits from a good amount of sunshine, making it a pleasant destination year-round.
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Melbourne is sunny but cold
Melbourne, the state capital of Victoria, is known for its changeable weather conditions. While the city experiences all four seasons, it is not uncommon to experience "four seasons in one day". Melbourne's weather can change suddenly, with isolated convective showers forming when a cold pool crosses the state, especially with considerable daytime heating. These showers are often heavy and may include hail, squalls, and significant drops in temperature. However, they usually pass through quickly, giving way to sunny and calm weather.
During the summer months of December to February, Melbourne warms up, with mean temperatures between 14°C and 25.3°C. These months are typically dry, but there can be occasional hot spells that last more than three days. The top temperatures are usually recorded in January and February, sometimes soaring past 30°C. February is one of the hottest months, with average temperatures ranging from 16°C to 27°C. However, there are fewer cloudy days, resulting in more sunshine.
Autumn in Melbourne (March to May) sees cooler weather, with average temperatures ranging from 10°C to 20°C. While there may be some foggy mornings, they usually clear up to welcome sunny days. Towards the end of the season, there can be extended periods of light winds. In April, the weather becomes drier and less humid, with temperatures averaging between 12°C and 21°C.
Melbourne's winter (June to August) is characterised by cool, damp weather, with average temperatures ranging from 6.5°C to 14.2°C. While snow falls in the north-east of Victoria, it is rare in the city centre, with the last recorded instance in 1986. The weather is frequently cold and cloudy, and nights can be frosty. Despite the cold, heavy rain is uncommon during this season.
Spring (September to November) is the most variable season in Melbourne, with weather quickly shifting from calm and sunny to cold and windy. October is the wettest month, with approximately 10 days of rainfall. Despite the variability, Melbourne's sunny days are renowned, and the city's rich arts and music culture, natural beauty, and tourist attractions make it a popular destination year-round.
While Melbourne may not be the sunniest state in Australia—a title often given to Western Australia (WA)—it offers a temperate oceanic climate with a unique mix of sunny days and cold spells.
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Frequently asked questions
Port Hedland and Broome have been named the sunniest cities in Australia, with only 22 overcast days a year.
The dry season, from May to October, is characterised by little to no overcast weather and bright skies.
The tropical region of Australia, including Darwin, Cairns, Townsville, and the surrounding areas, is the sunniest region in the country.




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