Lake Zurich
Lake Zurich is a Swiss lake (Zurich, St. Gallen, Schwyz) at 406 m, covering 88 km² with a maximum depth of 136 m. Typical winds: Westwind, Bise (NE), Föhn. Main shores and access points: Zürich, Rapperswil-Jona, Meilen, Horgen, Wädenswil, Stäfa, Pfäffikon SZ. The weather above is computed over the middle of the lake; the “Wind on the lake” section details hourly speed, gusts and direction — for sailing, windsurfing, paddling, fishing or swimming.
Climate of Lake Zurich: 1991–2020 normals
In Lake Zurich (406 m), the mean annual temperature is 10.4 °C. The warmest month is July (19.7 °C on average) and the coldest January (1.5 °C). About 1333 mm of precipitation falls per year, peaking in August (159 mm) with a minimum in February (76 mm). The sun shines for about 1703 hours a year, mostly in July (234 h). On average there are 68 frost days and 8 hot days (≥ 30 °C) per year. The mean monthly maximum reaches 32.1 °C and the absolute minimum −7.4 °C.
Mean monthly precipitation (mm) — bar height relative to the wettest month.
| Month | Mean T | Abs. max | Abs. min | Precip. (mm) | Sunshine (h) | Frost days | Summer days |
|---|---|---|---|---|---|---|---|
| Jan | 1.5 °C | 12.2 °C | −7.4 °C | 78 | 56 | 19 | 0 |
| Feb | 2.2 °C | 13.7 °C | −6.9 °C | 76 | 87 | 16 | 0 |
| Mar | 6.2 °C | 19.0 °C | −3.6 °C | 87 | 144 | 8 | 0 |
| Apr | 10.2 °C | 23.6 °C | 0.0 °C | 92 | 182 | 2 | 0 |
| May | 14.3 °C | 27.9 °C | 4.3 °C | 137 | 197 | 0 | 3 |
| Jun | 17.9 °C | 31.1 °C | 8.1 °C | 146 | 215 | 0 | 11 |
| Jul | 19.7 °C | 32.1 °C | 10.8 °C | 152 | 234 | 0 | 15 |
| Aug | 19.3 °C | 31.2 °C | 10.0 °C | 159 | 218 | 0 | 13 |
| Sep | 15.1 °C | 26.3 °C | 6.4 °C | 113 | 161 | 0 | 3 |
| Oct | 10.8 °C | 21.9 °C | 2.2 °C | 97 | 107 | 1 | 0 |
| Nov | 5.6 °C | 17.4 °C | −2.3 °C | 93 | 57 | 6 | 0 |
| Dec | 2.3 °C | 13.0 °C | −6.3 °C | 102 | 45 | 16 | 0 |
| Year | 10.4 °C | 32.1 °C | −7.4 °C | 1333 | 1703 | 68 | 46 |
Source: MeteoSwiss open data (1991–2020 normals) — stations Wädenswil (4 km, 485 m), Einsiedeln (14 km, 911 m), Zürich / Fluntern (18 km, 604 m), adjusted to the elevation of Lake Zurich (406 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.
Swiss lakes
- Weather Lake Greifen (11 km · 435 m)
- Weather Lake Pfäffikon (13 km · 537 m)
- Weather Lake Ägeri (16 km · 724 m)
- Weather Lake Zug (21 km · 413 m)
- Weather Lake Klöntal (32 km · 848 m)
- Weather Lake Lucerne (34 km · 434 m)
Nearby municipalities
- Weather Männedorf (2 km)
- Weather Uetikon am See (3 km)
- Weather Oetwil am See (3 km)
- Weather Wädenswil (4 km)
- Weather Stäfa (4 km)
- Weather Richterswil (5 km)
- Weather Meilen (5 km)
- Weather Wollerau (6 km)
Frequently asked questions about the weather: Lake Zurich
What is the wind like on Lake Zurich today?
The “Wind on the lake” section shows hourly average wind speed, gusts and direction for the next 24 hours, computed over the lake (406 m).
Can you swim in Lake Zurich?
In summer (June to September) lowland lakes usually reach 18–24 °C at the surface; there are many public beaches and lidos. Check the air temperature, sunshine and UV index above to pick your slot.
What are the typical winds on Lake Zurich?
Characteristic winds: Westwind, Bise (NE), Föhn. Storm warnings on Swiss lakes are signalled by flashing lights (40 flashes/min = caution, 90 = storm).
What is the warmest month in Lake Zurich?
The warmest month in Lake Zurich is July, averaging 19.7 °C (1991–2020 normal). The coldest is January at 1.5 °C.
How much does it rain in Lake Zurich per year?
Lake Zurich receives about 1333 mm of precipitation a year. The wettest month is August (159 mm), the driest February (76 mm).
When is the best time to visit Lake Zurich?
For warmth and sunshine: July (19.7 °C on average, 234 h of sun). The coldest month is January (1.5 °C). Check the 15-day forecast above for your dates.