Weather in Hervey Bay in September

Prime time. September is about as good as Hervey Bay gets. Highs average 27 °C, lows 14.8 °C, and rain falls on 6 days — nothing in the month is working against you.

September ranks 3 of 12 in Hervey Bay. Only August scores clearly higher, and the difference is small enough to be settled by price rather than weather.

Rain falls on only 6 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: 4 days top 30 °C — hot spells arrive, but they break. Across the twenty years measured, the hottest September day reached 38.5 °C and the coldest night fell to 7.1 °C, and the wettest single day dropped 54 mm — roughly 154% of the month's rain in one day.

This is the volatile part. September rainfall has ranged from 1 mm to 136 mm across the twenty years measured — a 135 mm spread around an average of 35 mm. The average is real but almost no individual September looks like it, so treat the figure as the middle of a wide range rather than a forecast.

Wind is light at 2.7 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 66%.

How September sits in the year

The month is on the way up: 3.1 °C warmer than August, and October adds another 2 °C. Late in the month feels noticeably different from the start of it, which is worth knowing if the trip is short.

Daylight in September

11.9 hours of daylight, gaining 0.7 hours across the month. That is between Hervey Bay's extremes of 13.7 and 10.6 hours, so days are long enough not to constrain the plan.

An inland climate

Despite being inland, the year stays fairly even: 20.4 °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, April is the trade worth considering — 13 points weaker on weather, and materially quieter.

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

September in Hervey Bay versus nearby

If Hervey Bay is one option among several, the nearby comparison is worth making. Bundaberg is close enough to be a coin toss — 2.3 °C cooler, the same number of rain days. Brisbane is close enough to be a coin toss — 2.8 °C cooler, 1 day more rain.

So: September is effectively as good as it gets here — 2 points behind August, which is inside the margin where the weather stops being the deciding factor and price starts being it.

Every month in Hervey Bay

See all twelve months in Hervey Bay, or where else to go in September.