Stäfa climate — normals and trends
Stäfa (Switzerland) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 7.8 °C and it receives 1,520 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is July (16.9 °C on average) and the coldest is January (-1.4 °C). Rainfall peaks in June.
Stäfa averages 105 frost days, 2 hot days (≥ 30 °C) and 178 rainy days per year.
Stäfa has warmed by +2.6 °C between 1940 and 2025, or +0.31 °C per decade. This trend is statistically significant.
The number of frost days there went from about 131 to 79 per year over the period.
The hottest day of the period reached 34.1 °C (on 13 August 2003) and the coldest -23.4 °C (on 23 January 1942).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
StäfaCanton of Zurich
- coords
- 47.24°, 8.72°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
7.8°C
Average daily high
11.8°C
Average daily low
4.2°C
Annual rainfall
1,520mm
Sunshine / day
8.6h
Mean relative humidity
80%
Average peak wind
9.8km/h
Seasonal range
18.3°C
Frost days (< 0 °C)
105 d/yr
Hot days (≥ 30 °C)
2 d/yr
Rainy days (≥ 1 mm)
178 d/yr
Annual snowfall
217.3 cm
Average feels-like high
10.1 °C
Average feels-like low
1.8 °C
Average peak gust
29.8 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
12.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.6 °C
since 1940
+0.3 °C per decade · r² = 0.64 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
34.1 °C
13 August 2003
Coldest day
-23.4 °C
23 January 1942
Wettest day
87 mm
11 July 1956
Windiest day
33.7 km/h
26 December 1999
Strongest gust
130.3 km/h
27 February 1990
Hottest feels-like
36.1 °C
5 July 2015
Coldest feels-like
-28.7 °C
10 February 1956
Snowiest day
27.1 cm
14 January 2021
Sunniest day
15.0 h
26 May 1940
Normals computed over complete calendar years 1940–2025.
A specific year
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Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 4.2 °C | +2.6 °C | 99 mm | -5 mm |
| Feb | 5.2 °C | +1.8 °C | 36 mm | -62 mm |
| Mar | 10.6 °C | +3.0 °C | 82 mm | -24 mm |
| Apr | 15.3 °C | +3.9 °C | 89 mm | -34 mm |
| May | 16.7 °C | +0.8 °C | 170 mm | +15 mm |
| Jun | 24.7 °C | +5.3 °C | 74 mm | -94 mm |
| Jul | 21.8 °C | +0.3 °C | 237 mm | +81 mm |
| Aug | 23.2 °C | +2.2 °C | 205 mm | +46 mm |
| Sep | 17.8 °C | +0.2 °C | 187 mm | +62 mm |
| Oct | 12.4 °C | -0.4 °C | 108 mm | +6 mm |
| Nov | 7.4 °C | +1.0 °C | 116 mm | +1 mm |
| Dec | 4.6 °C | +2.0 °C | 34 mm | -77 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Stäfa?
Stäfa has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 7.8 °C and it receives 1,520 mm of precipitation per year.
What is the hottest day ever recorded in Stäfa?
The hottest day measured in Stäfa between 1940 and 2025 was 13 August 2003, reaching 34.1 °C.
What is the coldest day in Stäfa?
The coldest day measured in Stäfa between 1940 and 2025 was 23 January 1942, at -23.4 °C.
Does it snow in Stäfa?
Yes. Stäfa gets on average 217.3 cm of snow per year and has around 105 frost days.
Has the climate of Stäfa warmed?
Yes: Stäfa warmed by +2.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Stäfa?
The wettest day measured in Stäfa between 1940 and 2025 was 11 July 1956, with 87 mm of rain in 24 hours.
What was the windiest day in Stäfa?
The windiest day measured in Stäfa between 1940 and 2025 was 26 December 1999, with winds reaching 33.7 km/h.
What is the warmest month in Stäfa?
The warmest month in Stäfa is July (16.9 °C on average); the coldest is January (-1.4 °C).
How much does it rain in Stäfa?
Stäfa receives on average 1,520 mm of precipitation per year, spread over about 178 rainy days.
Is it sunny in Stäfa?
Stäfa gets on average 8.6 hours of sunshine per day, roughly 3,139 hours per year over 1940-2025.
What is the biggest single-day snowfall in Stäfa?
The heaviest 24-hour snowfall measured in Stäfa between 1940 and 2025 was 14 January 2021, with 27.1 cm.
Are there tropical nights in Stäfa?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Stäfa.
What was the most extreme apparent temperature in Stäfa?
In Stäfa, between 1940 and 2025, the highest apparent temperature reached 36.1 °C on 5 July 2015, and the lowest was -28.7 °C on 10 February 1956.
Compare Stäfa with another city
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Nearby cities
The climate around Stäfa