Weather in Brisbane in August

Prime time. If you get to pick your dates, August is the one. Highs average 21.7 °C, lows 13 °C, and rain falls on 5 days — nothing in the month is working against you.

August is the highest-scoring month of the twelve. The nearest rival is September, and the month at the other end of the year is December.

Rain falls on only 5 days, so an itinerary with no wet-weather fallback is a reasonable risk. Nothing specialised needed — this is the month you pack for the trip rather than for the weather.

What the averages hide

Averages flatten a month, and this one hides a few things: it never really gets hot: not one day in an average August reaches 30 °C. Across the twenty years measured, the hottest August day reached 29.4 °C and the coldest night fell to 6.4 °C, and the wettest single day dropped 38 mm — roughly 86% of the month's rain in one day.

This is the volatile part. August rainfall has ranged from 2 mm to 145 mm across the twenty years measured — a 143 mm spread around an average of 44 mm. The average is real but almost no individual August looks like it, so treat the figure as the middle of a wide range rather than a forecast.

Wind is light at 11.5 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 67%.

How August sits in the year

Temperatures hold steady either side: 20.4 °C in July, 21.7 here, 24.2 in September. Nothing about the timing within the month matters much.

Daylight in August

11.1 hours of daylight, gaining 0.7 hours across the month. That is between Brisbane's extremes of 13.9 and 10.4 hours, so days are long enough not to constrain the plan.

An inland climate

Despite being inland, the year stays fairly even: 16.7 °C between the year's warmest afternoons and coldest nights.

How busy it gets

Peak season. Expect the highest prices of the year and to be booking well ahead. If the dates are flexible, May is the trade worth considering — 9 points weaker on weather, and materially quieter.

Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.

August in Brisbane versus nearby

If Brisbane is one option among several, the nearby comparison is worth making. Toowoomba is close enough to be a coin toss — within a degree on temperature, 1 day less rain. Byron Bay is close enough to be a coin toss — within a degree on temperature, 1 day more rain.

So: August is the answer for Brisbane. If it is booked out or priced out, September is the next best thing at 2 points behind, and December is the month to keep off the shortlist.

Every month in Brisbane

See all twelve months in Brisbane, or where else to go in August.