Vienna Weather in August
In August, Vienna averages a high of 26°C (79°F) and a low of 16°C (60°F), from 56 years of daily records (1971–2026).
26°C
Average high
79°F
16°C
Average low
60°F
40°C
Record high
103°F · August 5, 2026
7°C
Record low
45°F · August 26, 1979
What August Is Like in Vienna
- Vienna's hottest August day on record is a recent one: 40°C (103°F) on August 5, 2026.
- August in Vienna has become 2.6°C (4.7°F) warmer on average: the 2012–2026 average against 1970–1989.
- 8 of the 10 warmest Augusts on record in Vienna have come since 2012.
- August 2026 was the 2nd warmest August in 56 years of records, 3.5°C (6.3°F) above the long-run average.
At least 1 mm of rain falls on 26% of August days, and the month averages 65 mm in total.
Warmest: 1992 (31.5°C)Latest: 2026 (30.6°C)10-year averageLong-run average (26.3°C)
Look Up a Day in August
See the weather in Vienna on any August date, year by year.
Source: NOAA GHCN-Daily, Wien (1971–2026). Averages cover 1971–2026. How we compute this