Current meteorological data
Air temperature: 65.66 (°F)
18.7 (°C)
Wind speed:5 (km/h)
Wind direction: S-W, 220.8 °
Global radiation: 0.0 (W/m²)
Act. UV-Index: 0
Precipitation: 0.0 (ltr/m²)
(Updated: 07/12/2024, 23:30,
S-Mitte, Amt für Umweltschutz
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Average monthly and annual values in Stuttgart


May is the first out of four months with more than 200 hours of sunshine. The position of the sun is already very high and the first hot days occur. This leads to both an increase in the average ozone concentration to up to more than 70 ug/m³ (Böblingen) and higher peak values reaching the critical value of 180 ug/m³ or even more.

The heating activity has decreased to an extent that the average ambient air concentration of sulphur dioxide drops to less than 10 µg/m³ at all measuring stations. This very low concentration moves around the limit of detection.

In May, a polar area with increasing pressure moves southwards and shifts the centre of high pressure from Asia to the Atlantic. Apart from September, May is the only month with a belt of high pressure that stretches from the West to the East of Central Europe and mostly brings fine weather.

May is the last month before autumn in which temperature can drop below the freezing level. The last frost day in Stuttgart's centre is 11 May, 20 May in the higher district of Hohenheim. The "ice saints" (12 to 15 May) are famous for their late frosts, which can damage the flowers already abloom.

Weather lore:

- A cold May and a windy makes a fat barn and a findy.

- A hot May makes a fat churchyard.


Average monthly values of the climatic elements measured in Stuttgart-Zentrum (312 m), Stuttgart-Schnarrenberg (314) and Stuttgart-Hohenheim (420 m)


Climatic element STUTTGART Stuttgart-Hohenheim
1951-1980 1961-1990
Average temperature
(in °F/°C)
56.7/ 13.7 55.9/ 13.3 54.3/ 12.4 54.9/ 12.7
Maximum temperature
(in °F/°C)
91.0/ 32.8 (1969) 88.6/ 31.4 87.9/ 31.1 (1969) -
Minimum temperature
(in °F/°C)
30.7/ -0.7 (1953) 29.8/ -1.2 26.8/ -2.9 (1962) -
Ice days (in days) 0 0 0 0
Frost days (in days) 0.1 0 0.3 0.3
Heating days (in days) 20.1 - 22.9 -
Degree-day figure * 148 - - -
Summer days (in days) 3.4 3 2.2 1.9
Hot days (in days) 0.3 - 0.1 0
Sultry days (in days) 0.5 - - -
Rain days (in days) 13.9 14 15.8 17.3
Thunderstorm days
(in days)
- - 4.7 5.2
Amount of precipitation
(in mm)
72 83.6 71 82
Evaporation (in mm) - 65 50 -
Highes point of the sun (degrees) 61 61 61 -
Possible sunshine hours (in hours) 468 468 468 -
Average amount of sunshine hours (in hours) 202 - 205 198
Global radiation (in W/m²) - - 220 -


(Figures in red respresent the years between 1961-1990, figures in black the years between 1951-1980)
*( degree-day figure = average from the years 1982 - 1997)
**( after the relocation of the Weather Central, the given values are those for Stuttgart - Schnarrenberg)



© City of Stuttgart, Office for Environmental Protection, Section of Urban Climatology