How warm is it in Vienna in August?

Daytime highs averaged 27.6 °C, night-time lows 16.0 °C. The highest value of the past 10 years was 39.0 °C (4 Aug 2026), the lowest 8.6 °C (24 Aug 2025).

How often does it rain in Vienna in August?

On average there were 13.9 rain days (at least 1 mm) with 87.6 mm of precipitation in total.

🇦🇹 Weather in Vienna in August

This is what the weather in Vienna (Austria) was like in August in 2017–2026.

Key facts at a glance

Prevailing weather: Light rain

Avg. daytime high

27.6 °C

24.2 °C – 31.0 °C

Avg. night-time low

16.0 °C

13.6 °C – 17.8 °C

Avg. rain days in period

13.9

45 % of days · ≥ 1.0 mm

Avg. precipitation in period

87.6 mm

48.1 mm – 132 mm

Avg. sunshine per day

n/a

Sunshine duration is not available from this data source.

Avg. sea temperature

–

No sea nearby – no sea temperature.

Extremes: Highest temperature 39.0 °C (4 Aug 2026) · Lowest temperature 8.6 °C (24 Aug 2025) · Avg. daily peak wind 16 km/h

Weather mix of all days

67Sunny
70Partly cloudy
14Cloudy
83Light rain
56Rain

Summary

On average 27.6 °C during the day and 16.0 °C at night.
On average 13.9 rain days (Rain day = at least 1.0 mm of precipitation) with 87.6 mm of precipitation in total.
Prevailing: Light rain.
Warmest year: 2026 (avg. 31.0 °C), coolest: 2021 (avg. 24.2 °C).
Wettest year: 2021 (132 mm), driest: 2024 (48.1 mm).
Extremes: 39.0 °C on 4 Aug 2026 and 8.6 °C on 24 Aug 2025.

Overall values from all 10 years. How is this calculated?

Temperatures per year

Average over your travel period

Precipitation & rain days

Year by year

2026
Avg. max31.0°Avg. min17.5°
Rain days
11 Rain days
Precipitation
51.1 mm
Avg. sunshine per day
n/a
Sea temperature
–
Max 39.0 °C · Min 12.3 °C
2025
Avg. max27.3°Avg. min14.8°
Rain days
10 Rain days
Precipitation
53.1 mm
Avg. cloud cover
40 % cloudy
Sea temperature
–
Max 34.1 °C · Min 8.6 °C
2024
Avg. max30.2°Avg. min17.8°
Rain days
11 Rain days
Precipitation
48.1 mm
Avg. cloud cover
50 % cloudy
Sea temperature
–
Max 35.5 °C · Min 12.6 °C
2023
Avg. max26.0°Avg. min16.1°
Rain days
16 Rain days
Precipitation
121 mm
Avg. cloud cover
55 % cloudy
Sea temperature
–
Max 34.8 °C · Min 9.2 °C
2022
Avg. max27.0°Avg. min16.2°
Rain days
15 Rain days
Precipitation
124 mm
Avg. cloud cover
56 % cloudy
Sea temperature
–
Max 36.0 °C · Min 12.0 °C
2021
Avg. max24.2°Avg. min13.6°
Rain days
20 Rain days
Precipitation
132 mm
Avg. cloud cover
66 % cloudy
Sea temperature
–
Max 31.7 °C · Min 8.9 °C
2020
Avg. max26.2°Avg. min15.8°
Rain days
16 Rain days
Precipitation
132 mm
Avg. cloud cover
55 % cloudy
Sea temperature
–
Max 31.3 °C · Min 12.2 °C
2019
Avg. max27.7°Avg. min16.4°
Rain days
18 Rain days
Precipitation
64.5 mm
Avg. cloud cover
64 % cloudy
Sea temperature
–
Max 33.8 °C · Min 10.7 °C
2018
Avg. max28.5°Avg. min16.6°
Rain days
12 Rain days
Precipitation
72.6 mm
Avg. cloud cover
45 % cloudy
Sea temperature
–
Max 33.2 °C · Min 8.8 °C
2017
Avg. max27.7°Avg. min15.3°
Rain days
10 Rain days
Precipitation
76.8 mm
Avg. cloud cover
48 % cloudy
Sea temperature
–
Max 36.4 °C · Min 9.7 °C

Frequently asked questions

How warm is it in Vienna in August?: Daytime highs averaged 27.6 °C, night-time lows 16.0 °C. The highest value of the past 10 years was 39.0 °C (4 Aug 2026), the lowest 8.6 °C (24 Aug 2025).
How often does it rain in Vienna in August?: On average there were 13.9 rain days (at least 1 mm) with 87.6 mm of precipitation in total.

Check your exact travel dates

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Data sources

Weather data: Data obtained from the NASA Langley Research Center (LaRC) POWER Project funded through the NASA Earth Science/Applied Science Program
Reanalysis (weather model constrained by observations) on a coarse grid of about 50 km. Values represent a large area and can differ from local conditions, especially on islands, coasts and in mountains. No sunshine duration.
Reanalysis (weather model constrained by observations)
Reanalysis values represent a grid cell (approx. 25–50 km) and may differ from local measurements on coasts, islands and in mountains.
Sea temperature: MUR SST data were provided by JPL under support by NASA MEaSUREs program; accessed via NOAA CoastWatch ERDDAP
Daily multi-scale ultra-high resolution (≈ 1 km) analysis of satellite measurements (infrared, microwave) and in-situ data. Represents the foundation temperature below the daily warm surface layer. (Satellite and in-situ analysis)
Place search: Natural Earth (public domain) · GeoNames (CC BY 4.0) / OpenStreetMap (ODbL)