Vienna’s weather & climate
Around 2,073 hours of sunshine, 90 rain days and 88 summer days a year — and it is getting noticeably warmer. Vienna’s climate in real numbers.
These are the official annual figures of the GeoSphere Austria station Wien Hohe Warte (open data, CC BY 4.0), averaged over 2020–2025. We state every threshold openly — a hot day means a daily maximum of 30 °C or more, a tropical night means the temperature never drops below 20 °C.
Vienna over the year (avg 2020–2025)
Vienna is warming — and you can see it
Compared with the 1991–2020 normal, the annual temperature is already +0.5 °C higher. The extremes show it even more clearly: hot days and tropical nights are rising fast, frost days are becoming rarer.
Year by year
Month by month
Warmest month: July (Ø 22.6 °C), coldest: January. Sunniest: June (278 h), wettest: September. The climatology below is the 2020–2025 average per calendar month.
What it means for where you live
Warmer summers do not hit Vienna evenly. In dense, sealed neighbourhoods the heat builds up and barely cools at night — exactly what makes tropical nights uncomfortable. Green, tree-lined Grätzl, closeness to open water (the Danube, Alte Donau, Neue Donau) and higher slopes along the Vienna Woods cool down noticeably better. Anyone choosing a flat for the next decade looks at street trees and shade, green space within walking distance and elevation — not just the floor plan.
Why Vienna is sometimes windy
Vienna sits at the eastern edge of the Alps, where the land opens into the Pannonian plain. West and north-west winds blow on more than 160 days a year: the Vienna Woods channel that flow along the Danube and through the Wiental valley straight into the city. Less often, on about 40 days, the south-east wind arrives from the open plain — warm from the Hungarian lowlands in summer, cold and continental in winter. On average there are about 45 windy days a year. The wind has its upside, too: it carries muggy summer air away and keeps the city cleaner.
Find green, cooler Grätzl on the map →Frequently asked
How many hours of sunshine does Vienna get?
About 2,073 hours a year (average 2020–2025, station Wien Hohe Warte) — a touch above the 1991–2020 normal of 2,041.8 hours. 2022 was the sunniest recent year with 2,135 hours.
How many rain days does Vienna have?
Around 90 days a year with at least 1 mm of precipitation, and about 648 mm of rain and snow in total.
How hot does Vienna get in summer?
On average 88 summer days (max ≥ 25 °C), 30 hot days (≥ 30 °C) and 11 tropical nights (never below 20 °C) a year. 2024 had 45 hot days.
Is Vienna getting warmer?
Yes. The annual temperature is already +0.5 °C above the 1991–2020 normal. Comparing 2020–2022 with 2023–2025, hot days rose from 25 to 35 and tropical nights from 5 to 16 per year.
Does it still snow in Vienna?
Less and less: on average only about 11 days a year with snow on the ground (≥ 1 cm) — and warm winters can bring barely any.
When is the warmest, sunniest and wettest month in Vienna?
Warmest is July (avg 22.6 °C), coldest January. Sunniest is June (278 h), wettest September (average 2020–2025).
Why is it so windy in Vienna?
Vienna lies between the Alps and the Pannonian plain. West/north-west winds are funnelled by the Vienna Woods along the Danube into the city (160+ days a year); the south-east wind blows unobstructed off the plain. About 45 windy days a year.
Source: GeoSphere Austria, station Wien Hohe Warte (daily climate data klima-v2-1d), CC BY 4.0; 1991–2020 normals: Stadt Wien / GeoSphere. Counts computed by Vienna Living Map from the daily series.