Brisbane, where it lies

The climate of Brisbane, the capital of Queensland, and lying on the east coast of Australia, is subtropical oceanic, with very mild, relatively dry winters and hot, rainy summers.
Being in the Southern Hemisphere, like the rest of Australia it has reversed seasons in comparison with Europe or North America.
Here are the average temperatures.
Brisbane - Average temperatures
Min (°C)21201916131191013161819
Max (°C)292928262321202224272829
Min (°F)706866615552485055616466
Max (°F)848482797370687275818284

Because of its location, in winter the city is more sheltered than the southern cities (Perth, Melbourne, Sydney) from the cold, and also from wind and rain. In addition, it is also sheltered from heatwaves coming from the desert because in summer the ocean currents prevail. However, in summer it can sometimes be affected by tropical cyclones, or at least their remains, which in any case are able to bring heavy rains.
Precipitation is quite abundant: in an average year, 1,200 millimeters (47 inches) of rain fall, of which more than 100 mm (4 in) fall per month from December to March, while the driest period is winter, together with early spring.
Here is the average precipitation.
Brisbane - Average precipitation

Winter, from June to August, is very mild: the average daytime temperatures are about 20 °C (68 °F). At night, at certain times it can be cold, in fact the temperature can drop to around 3/5 °C (37/41 °F), but during the day it remains mild. There are many sunny days, and the rains are quite rare.

Spring, in September and October, is pleasantly warm, but the rains start to increase.

Summer is long, going from November to March, and it's hot and muggy, but tempered by sea breezes, which regularly blow, especially in the afternoon. The weather is often good, but thunderstorms can break out quite often, sometimes accompanied by hail and wind gusts. In the years of La Niña, the rains may be particularly abundant, as happened in January 2011, when the Brisbane River flooded the city.
Every now and then, a tropical cyclone can reach the city, although this rarely happens because cyclones usually pass over the area more to the north, beyond the Tropic. Sometimes, cyclones can pass over the ocean at some distance, causing storm surges that can reach the coast.

Autumn, in April and May, is pleasantly warm, and it is quite rainy, although the rains are generally less intense than the summer thunderstorms. In May, sometimes at night it can get a little cold, with minimum temperatures below 10 °C (50 °F).


The amount of sunshine in Brisbane is good all year round, since there are many fine days in all seasons.
Brisbane - Sunshine

The sea near Brisbane is quite warm to swim in from December to April, when the water temperature is 24/26 °C (75/79 °F), while in winter, from July to September, it's cool, about 21 °C (70 °F), but after all it's not impossible. So, if you go in the Southern Hemisphere winter, maybe in July and August, on a fine day you can even try a swim in the sea.
The Goald Coast to the south and the Sunshine Coast to the north of the city are popular with surfers, while the city is located in a bay (the Moreton Bay) which is more sheltered from waves.
Here are the average sea temperatures.
Gold Coast - Sea temperature
Temp (°C)262626252422212121222325
Temp (°F)797979777572707070727377

Best Time

Given that it has a good climate, you can visit Brisbane all year round. However, you can choose winter and early spring, ie from June to September, since it is the driest period. October is a bit more rainy but is pleasantly warm, without excesses. Summer is hot and muggy, but generally the heat is bearable and it's a good period for swimming and sunbathing; sometimes, however, there can be severe thunderstorms, and even a cyclone can approach the city.