Weather in Toowoomba in December

Shoulder season. December sits in between. You will get good days and you will lose some. Highs average 30 °C, lows 16.1 °C, and rain falls on 13 days — nothing in the month is working against you.

December ranks 12 of 12 — near the bottom of Toowoomba's year. August is the month that works, and the swing between the two is 30 points, which is a different holiday rather than a slightly better one.

Rain on 13 days, 3 of them heavy. Enough to need a plan B, not enough to need a plan around it. Pack for 30 °C days and 16.1 °C nights; the spread matters more here than any single number.

What the averages hide

Averages flatten a month, and this one hides a few things: 15 days top 30 °C — hot spells arrive, but they break. Across the twenty years measured, the hottest December day reached 39.6 °C and the coldest night fell to 7.2 °C, and the wettest single day dropped 61 mm — roughly 62% of the month's rain in one day.

December is moderately variable: 26 mm in the driest year against 325 mm in the wettest, around an average of 99 mm. Roughly two Decembers in three land near that average, and the third does something else entirely.

Wind is light at 9.5 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 63%.

How December sits in the year

Temperatures hold steady either side: 29.1 °C in November, 30 here, 31 in January. Nothing about the timing within the month matters much.

Daylight in December

December is at or near the longest days of Toowoomba's year: 13.9 hours of daylight, holding steady all month. Evenings are the real gain — dinner outdoors still happens in full light.

An inland climate

With no coast nearby, the year swings a fair way — 26.1 °C between the warmest afternoons and the coldest nights, wider than any coastal city at this latitude would manage.

How busy it gets

Off season. The genuine off season: cheapest by a distance, with the caveat that some tours and restaurants close entirely.

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

December in Toowoomba versus nearby

If Toowoomba is one option among several, the nearby comparison is worth making. Brisbane is close enough to be a coin toss — within a degree on temperature, 1 day more rain. Byron Bay is a better bet in December — 4.5 °C cooler, 1 day more rain.

So: December is a compromise. August is 30 points better and is what Toowoomba is actually like at its best — worth moving the trip for if that is possible, and worth adjusting expectations for if it is not.

Every month in Toowoomba

See all twelve months in Toowoomba, or where else to go in December.