Lake Ägeri
Lake Ägeri is a Swiss lake (Zug) at 724 m, covering 7.2 km² with a maximum depth of 82 m. Typical winds: Westwind, Föhn, Bise. Main shores and access points: Unterägeri, Oberägeri, Morgarten. 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 Ägeri: 1991–2020 normals
In Lake Ägeri (724 m), the mean annual temperature is 8.5 °C. The warmest month is July (17.6 °C on average) and the coldest January (−0.4 °C). About 1433 mm of precipitation falls per year, peaking in August (170 mm) with a minimum in January (81 mm). The sun shines for about 1705 hours a year, mostly in July (234 h). On average there are 94 frost days and 6 hot days (≥ 30 °C) per year. The mean monthly maximum reaches 30.0 °C and the absolute minimum −11.1 °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 | −0.4 °C | 10.7 °C | −11.1 °C | 81 | 56 | 22 | 0 |
| Feb | 0.3 °C | 12.2 °C | −10.7 °C | 81 | 87 | 20 | 0 |
| Mar | 4.1 °C | 17.0 °C | −7.0 °C | 94 | 144 | 14 | 0 |
| Apr | 8.1 °C | 21.5 °C | −2.8 °C | 101 | 183 | 5 | 0 |
| May | 12.2 °C | 25.7 °C | 1.8 °C | 153 | 198 | 0 | 2 |
| Jun | 15.9 °C | 29.0 °C | 5.7 °C | 160 | 216 | 0 | 8 |
| Jul | 17.6 °C | 30.0 °C | 8.2 °C | 168 | 234 | 0 | 11 |
| Aug | 17.3 °C | 29.3 °C | 7.6 °C | 170 | 218 | 0 | 10 |
| Sep | 13.2 °C | 24.8 °C | 3.6 °C | 122 | 161 | 0 | 2 |
| Oct | 8.9 °C | 21.0 °C | −0.5 °C | 102 | 107 | 2 | 0 |
| Nov | 3.8 °C | 16.2 °C | −5.7 °C | 96 | 57 | 10 | 0 |
| Dec | 0.5 °C | 11.8 °C | −10.1 °C | 106 | 44 | 20 | 0 |
| Year | 8.5 °C | 30.0 °C | −11.1 °C | 1433 | 1705 | 94 | 35 |
Source: MeteoSwiss open data (1991–2020 normals) — stations Einsiedeln (10 km, 911 m), Wädenswil (12 km, 485 m), Cham (14 km, 443 m), adjusted to the elevation of Lake Ägeri (724 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.
Swiss lakes
- Weather Lake Zug (11 km · 413 m)
- Weather Lake Zurich (16 km · 406 m)
- Weather Lake Lucerne (19 km · 434 m)
- Weather Lake Greifen (26 km · 435 m)
- Weather Lake Pfäffikon (28 km · 537 m)
- Weather Lake Klöntal (29 km · 848 m)
Nearby municipalities
- Weather Oberägeri (1 km)
- Weather Unterägeri (3 km)
- Weather Sattel (3 km)
- Weather Rothenthurm (5 km)
- Weather Menzingen (6 km)
- Weather Walchwil (7 km)
- Weather Steinerberg (7 km)
- Weather Schwyz (7 km)
Frequently asked questions about the weather: Lake Ägeri
What is the wind like on Lake Ägeri today?
The “Wind on the lake” section shows hourly average wind speed, gusts and direction for the next 24 hours, computed over the lake (724 m).
Can you swim in Lake Ägeri?
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 Ägeri?
Characteristic winds: Westwind, Föhn, Bise. Storm warnings on Swiss lakes are signalled by flashing lights (40 flashes/min = caution, 90 = storm).
What is the warmest month in Lake Ägeri?
The warmest month in Lake Ägeri is July, averaging 17.6 °C (1991–2020 normal). The coldest is January at −0.4 °C.
How much does it rain in Lake Ägeri per year?
Lake Ägeri receives about 1433 mm of precipitation a year. The wettest month is August (170 mm), the driest January (81 mm).
When is the best time to visit Lake Ägeri?
For warmth and sunshine: July (17.6 °C on average, 234 h of sun). The coldest month is January (−0.4 °C). Check the 15-day forecast above for your dates.