Port Arthur Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Port Arthur.
Climate overview of Port Arthur
Port Arthur, Tasmania, Australia, has a stable climate with little temperature variation across the year. Average daytime temperatures hover around 16°C (61°F), peaking in February at 19°C (66°F) and dipping in August to 13°C (55°F).
Port Arthur sees a moderate amount of rainfall, totalling around 763 mm (30 in) per year. Sunshine peaks in January, when the city sees around 8.4 hours of sunshine per day.
Port Arthur Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Port Arthur — and find the best time to visit.
Monthly Temperature in Port Arthur
With minimal seasonal shifts, Port Arthur experiences a constant climate year-round. Average maximum daytime temperatures range from a pleasant 19°C (66°F) in February, the warmest time of the year, to a moderate 13°C (55°F) during cooler months like August.
At night, you can expect temperatures ranging from 14°C (57°F) in February to around 9°C (48°F) during August.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Port Arthur
Generally, Port Arthur receives mid-range precipitation levels, with 763 mm (30 in) annually. Year-round, Port Arthur has a balanced climate with minimal variation in precipitation. The difference between the wettest month, August, with 74 mm (2.9 in), and the driest month, February, with 58 mm (2.3 in), is minimal. For more details, please visit our Port Arthur Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Port Arthur
Seasonal changes in sunshine hours are quite dramatic in Port Arthur. While January receives considerable daily sunshine with up to 8.4 hours, June marks the darkest time of the year, where sunshine is scarce with only 4.4 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Port Arthur by Month
The relative humidity is moderate throughout the year in Port Arthur.
The city experiences its highest humidity in June, reaching 64%. In December, the humidity drops to its lowest level at 49%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Port Arthur
Frequently asked questions about the climate in Port Arthur
What is the best time to visit Port Arthur?
January, February and March typically offer the most optimal weather in Port Arthur. In contrast, July and August tend to have less optimal conditions.
What temperatures can I expect in Port Arthur?
Daytime highs range from 13°C (55°F) in August to 19°C (66°F) in February. Nighttime lows range from 9°C (48°F) to 14°C (57°F). Temperatures stay relatively stable year-round.
How much rain does Port Arthur get?
Annual rainfall is around 763 mm (30 in). August is the wettest month with 74 mm (2.9 in), while February is the driest with 58 mm (2.3 in).
How sunny is Port Arthur?
Port Arthur receives around 2,362 hours of sunshine per year. January is the sunniest month with 251 hours, while June is the cloudiest with just 131 hours. Overall, Port Arthur enjoys abundant sunshine.
Port Arthur 3-Day Forecast
Port Arthur 3-Day Forecast
Port Arthur on the map
Port Arthur is highlighted — select any city to see its climate.
Popular this month
Where to go in June — average daytime high across popular destinations.
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
An alternative way to discover Sydney
We have made an overview of the sights in Sydney that you must see if you want to visit Sydney in an alternative way.
The most relaxed and alternative area of Australia is called the Byron Shire
The Byron Shire is one of the most pretty areas in the world. Not only in terms on natural beauty, also the relaxed vibe and people make this an area that remains close to your heart.
Sail the Whitsunday islands
The best travel period to sail the Whitsunday islands is “winter” between June and October, with pleasant temperatures around 23 degrees Celsius (74 Fahrenheit).
The best dive spots in Australia
Explore Australia's best dive spots: from the Great Barrier Reef to HMAS Perth. Discover vibrant corals, marine life, and historic wrecks.