The coldest months are December to February, when the temperatures struggle to get much above 0°C. Day temperatures well below zero are not uncommon.
These months are also when you can expect snow every now and then.
The city is geared up to dealing with blizzards; the local authorities clear the sidewalks and roads very quickly and public transport is rarely troubled for longer than a couple of hours (though delays can occur).
Tip: If you’re driving, take care where you park when snow is predicted – the snowploughs can end up half-burying your car in snow, leaving you to dig your vehicle out by hand.
If you’re planning to come during these winter months, then bring warm clothes, including some kind of hat or headband to protect the ears. And sturdy boots or walking shoes if you plan to go around on foot. The streets and pavements can get very mucky after snow, and a combination of slush, grit and salt can play havoc with your shoes if you haven’t got the proper footwear.
The hottest time of year is July and August, with average temperatures around 20°C and day temperatures often reaching the high 20s. “Comfortably warm” is a typical description for the summer, but this is a city, so it can get sticky. In 2015, a heatwave saw temperatures hit the high 30s for days on end.
It doesn’t rain too much, but it never hurts to bring an umbrella. Vienna gets about 600mm of rain each year but there tends to be more of the short, sharp thunderstorm variety, rather than drizzle.
Here are typical average temperatures for the 12 months (remember it’s warmer during the day and colder at night!)
Highest ever recorded temperatur: 38.3°C…(100.94°F) (1957)
Lowest ever recorded temperature: -26.3°C…(-15.34°F) (1929)