Wetter in Hallstatt (Salzkammergut) im September

The advice here is about the hour, not the month: the coaches arrive early in the afternoon and leave before dinner, so the village belongs to whoever is still in it at breakfast and after six. In mid-September the evenings are still light enough to use, which is the argument for an overnight rather than a day trip. Our row gives 21C days over 10.2C nights with 162.9mm across 15.5 days - this is a wet valley in a wet month, so the waterproof is not optional. Ignore the 17.3cm in our snow column: that is the Dachstein above the lake, not the lakeside. The record: humidity 84 percent, 8.3 hours of sun, a 7.5 kph wind and AQI 34.

Regulars are consistent this village can genuinely swing between a light-jacket, sunny lakeside day and one needing an umbrella and waterproof shoes, with even a misty, rainy morning often clearing to blue skies by the time an afternoon walk starts. Our row backs that mild, genuinely wet read, 19C over 7.8C nights feeling 6C, with a substantial 201.1mm of rain across 22.2 days and a trace of very late snow, 13.9cm, reflecting the surrounding Alps' higher-elevation totals. Regulars are consistent this counts as more stable than April overall, warmer temperatures and more sunshine hours the norm even with the real rain risk. This remains a genuinely beautiful month for the lake reflecting the forest's fresh green, rain or shine. The record: 9.4 hours of sun, an 8.4 kph wind and AQI 40.

Regulars are candid that this village is best experienced outdoors, on the lake or eating al fresco, which makes April a gamble - by month's end the deciduous trees are usually in leaf and spring-like days are common, but rain or fog can arrive in any given week and turn a visit indoors with little to see. Our row carries real winter leftovers, 41.7cm still in the snow column and 115.5mm of rain across 16 days, alongside 16.1C reading as 14C over 4.1C nights that feel like freezing. One practical hazard: the salt mine tour, one of the area's headline attractions, will not run in poor weather, so a rainy day here can mean losing the one indoor option as well. Trails in the surrounding mountains stay soft and slippery from lingering snow. The record: humidity 78 percent, 9.6 hours of sun, a 9 kph wind and AQI 40.

Hallstatt in July has the tightest crowd timetable in this collection. The coaches from Vienna start arriving around ten, the village is packed from about half past ten until four, and regulars say the daytime crush takes away the thing people came for. Their answer is the hours either side: dawn, around five in summer, and dusk up to nine - which July makes practical, since our row carries 15.5 hours of daylight. Staying the night rather than day-tripping is the standing advice, and the salt mine wants booking ahead or you queue. The weather nobody mentions is the wettest part: 208.7mm across 20.8 precipitation days at 81 percent humidity, under a mild 25.2C. The record: 13.7C nights, 10.9 hours of sun, an 8.6 kph wind and AQI 40.

August is peak season in Hallstatt - Austrian school holidays run from early July to 10 September - and the forum's advice is entirely about the clock. Coaches start arriving around 10am, the village is at its worst from about 10:30 until 4pm, and it empties again after. Dawn, which in summer means about 5am, and the evening up to around 9pm are when the lakeside is calm and the place looks like its photographs. The conclusion regulars reach is that the only real fix is to stay the night rather than day-trip: the salt mine wants an early start too. August weather is usually warm, with evenings noticeably cooler and shorter than midsummer's. The record is the caveat: 18.9 precipitation days carrying 192.4mm, against 25.8C days, 14C nights and 9.7 hours of sun.