Het weer in Airlie Beach (Whitsundays) in september

Early September is the window the Whitsundays forum names: no stingers and good weather at the same time. Stinger season runs October through April, so September sits just outside it - the part of the shoulder where the water is open and the boats are not yet fighting the summer heat. Wind is what moves a sailing plan here rather than rain; a strong northerly builds a short sharp chop and reshuffles itineraries. Our row shows how dry the month is: 0.6 precipitation days carrying 12.2mm, effectively nothing. The record: 25.8C days that feel like 27C, 19.7C nights, 10.9 hours of sun, a 23.2C sea and a 20 kph wind.

Regulars call this one of their favorite months here, nights running fresh and cool while days stay lovely and sunny, genuinely less humid than the wet summer months even if not bone dry. Our row backs that mild, genuinely dry read, 24.5C over 20.1C nights, with rain light at 62.6mm across 7.1 days and humidity at 79 percent. Regulars are consistent this remains a comfortable, popular window for exploring the Whitsundays before the cooler winter nights of June and July set in, sunny days the reliable norm. The sea sits at a mild 23.9C, cooler than peak summer but still swimmable for most. The record: 9.4 hours of sun, a 21.2 kph wind and AQI 27.

Stinger season on this coast runs October through April, so June sits safely outside it - no suit needed, and regulars name May through September as the recommended stretch for exactly that reason. The water in June is on the cool side of comfortable but fine for swimming, our column reading 23C, and sunburn still catches people off guard even in what counts as the mild season here. Our row gives 22.7C over 18C, a small nine-degree range typical of the tropics, with 30.8mm across 5.3 days - genuinely one of the drier and calmer windows of this coast's year. The record: humidity 78 percent, 9.4 hours of sun, an 18.4 kph wind and AQI 27.

August is the clear window in the Whitsundays. Stinger season runs roughly October to April, so there is nothing to plan around now - no suits, no nets, no timing - and regulars simply call late August lovely, putting it at 23 to 25C with water around 23C. Our row is a shade cooler on both: 23.5C over 17.6C with a 21.7C sea, and 24mm across only 2.2 precipitation days in the middle of the dry season. It is the sailing month, with the multi-day charters out of Airlie running on calm water. Read alongside November, when the nets go back in, August and the stinger calendar are the two halves of the same year here. The record: humidity 76 percent, 10.1 hours of sun, an 18.6 kph wind and AQI 30.

November in the Whitsundays is hot and sunny and regulars call it a fine time to come - our row gives 29.6C over 23.7C, reading as 32C, with only 3.5 precipitation days and a 27C sea. It is also the month stinger season starts: roughly November to May, with box jellyfish reported along the coastal fringe by the end of the month, so ocean swimming means a stinger suit. Their reassurance is practical - every tour and cruise supplies the suits, hotels have pools, and there are netted enclosures on beaches up and down North Queensland - so the season changes what you wear rather than whether you swim. Strong-wind days do happen. The record: 45mm of rain, humidity 74 percent, 11.6 hours of sun, a 19.9 kph wind and AQI 29.