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Turin's forum rates September as the driest month of the year and a regular favorite, though pattern reliability has slipped in recent years according to long-time posters. Given the choice between September and the depths of winter, regulars are unanimous about which one to pick.

Regulars are specific that many locals leave the city this month, with the worst stretch for closures running roughly August 10-17 and museums specifically shut on the 15th for the national holiday, though the centre itself never fully shuts down and shops, bars and restaurants stay findable throughout. Our row backs the hot read, 30.4C reading as a hot 32C, over 22.2C nights, with 53.2mm of rain across 8 days - regulars note a thunderstorm breaking the heat every so often is normal rather than a sign of bad luck. Regulars are consistent the nearby mountains keep this noticeably less brutal than Central or Southern Italy at the same time of year. The record: humidity 62 percent, 11.6 hours of sun, a 7.9 kph wind and AQI 65.

Asked whether summer here is hot, regulars answer that the problem is not July's temperature but its humidity, which can make sleeping hard - and that mid-June is the better half of the season. Our row gives 27.9C reading as 30C at 70 percent humidity, over nights that stay at 19.8C, with 77.8mm of rain across 11.6 days. The wind is almost nothing at 7.8 kph, which is part of why the air sits. The Alps an hour away are the other half of June: late in the month is good for walking up there, though the boards warn that mountain weather changes with altitude and wants layers whatever the city is doing. The record: 12.3 hours of sun and AQI 68.

Asked to choose a season, regulars point out the plain thing about April here: May is warmer and the days are longer, so April is the cheaper, quieter version of the same city. Our row gives 18.8C over 10.6C with 9.7 hours of sun inside 13.5 of daylight, and 91.5mm across 9.9 days, which is a proper spring rather than a summer. The mountains are the other half of the question - Bardonecchia and Sestriere are an hour out by train - and the board's warning is that conditions up there are unreliable well into May, with reliable spring snow only at the highest resorts. Easter moves, so check where it falls before planning around it. The record: humidity 68 percent, a dew point of 5C and AQI 56.

May is a good month for Turin and regulars split it in two: early May and late May behave differently, with the end of the month occasionally running to 30C. One recent May they describe as perfect - no rain and around 22C every day - which is exactly the kind of year our row's 22C average high produces. The figure that deserves attention is the rain: 131.7mm across 15.6 precipitation days makes May the wettest month of the Turin year, which is Alpine foothill weather rather than Mediterranean. They are also candid that the pattern has become hard to predict, and recommend the Italian forecast sites over the international ones close to the date. The record: 14.6C nights, humidity 73 percent, 10.4 hours of sun and a 14.9-hour day.