About Illnau-Effretikon
Illnau-Effretikon is a Swiss municipality located in the canton of Zurich (ZH), at 47.425° latitude and 8.692° longitude. The municipality is part of the Swiss plateau, transitional temperate oceanic climate with four distinct seasons. Also known as Illnau-Effretikon, Illnau-Effretikon benefits from precise weather monitoring with hourly and 15-day forecasts.
Climate of Illnau-Effretikon
The climate in Illnau-Effretikon is characteristic of the Swiss plateau, transitional temperate oceanic climate with four distinct seasons. Temperatures, precipitation and wind conditions vary throughout the year with local features linked to altitude and surrounding terrain. Our data comes from official weather stations and real-time Netatmo sensors for Illnau-Effretikon and neighboring municipalities.
On this page you will find the detailed weather forecast for Illnau-Effretikon: current temperature, 48-hour hourly forecast, 15-day forecast, air quality, UV index, wind, precipitation and weather alerts. Updated hourly.
Climate of Illnau-Effretikon: 1991–2020 normals
In Illnau-Effretikon (508 m), the mean annual temperature is 9.8 °C. The warmest month is July (19.1 °C on average) and the coldest January (1.0 °C). About 1050 mm of precipitation falls per year, peaking in July (120 mm) with a minimum in February (57 mm). The sun shines for about 1666 hours a year, mostly in July (233 h). On average there are 81 frost days and 10 hot days (≥ 30 °C) per year. The mean monthly maximum reaches 32.2 °C and the absolute minimum −8.9 °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 | 1.0 °C | 11.5 °C | −8.9 °C | 63 | 54 | 20 | 0 |
| Feb | 1.7 °C | 13.6 °C | −8.5 °C | 57 | 84 | 18 | 0 |
| Mar | 5.7 °C | 19.0 °C | −4.9 °C | 67 | 140 | 12 | 0 |
| Apr | 9.7 °C | 23.6 °C | −1.5 °C | 75 | 176 | 3 | 1 |
| May | 13.7 °C | 27.5 °C | 2.9 °C | 118 | 193 | 0 | 4 |
| Jun | 17.4 °C | 31.0 °C | 6.7 °C | 115 | 212 | 0 | 11 |
| Jul | 19.1 °C | 32.2 °C | 9.3 °C | 120 | 233 | 0 | 16 |
| Aug | 18.7 °C | 31.5 °C | 8.7 °C | 113 | 217 | 0 | 14 |
| Sep | 14.4 °C | 26.5 °C | 4.7 °C | 83 | 161 | 0 | 4 |
| Oct | 10.0 °C | 21.6 °C | 0.3 °C | 82 | 100 | 1 | 0 |
| Nov | 4.9 °C | 15.8 °C | −4.0 °C | 74 | 54 | 8 | 0 |
| Dec | 1.7 °C | 11.9 °C | −7.9 °C | 81 | 42 | 18 | 0 |
| Year | 9.8 °C | 32.2 °C | −8.9 °C | 1050 | 1666 | 81 | 49 |
Source: MeteoSwiss open data (1991–2020 normals) — stations Zürich / Fluntern (11 km, 604 m), Zürich / Affoltern (13 km, 444 m), Zürich / Kloten (13 km, 426 m), adjusted to the elevation of Illnau-Effretikon (508 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.
Nearby cities
Check the weather of cities near Illnau-Effretikon:
- Weather Volketswil
- Weather Lindau
- Weather Weisslingen
- Weather Wangen-Brüttisellen
- Weather Winterthur
- Weather Nürensdorf
- Weather Fehraltorf
- Weather Schwerzenbach
- Weather Bassersdorf
- Weather Uster
- Weather Brütten
- Weather Dietlikon
→ Nearby cities · Canton Zurich
Frequently asked questions about weather in Illnau-Effretikon
What is the weather in Illnau-Effretikon today?
At the top of the page you will find the current temperature, precipitation and wind in Illnau-Effretikon, updated in real time.
What is the 15-day forecast for Illnau-Effretikon?
The "15-day forecast" section shows min/max temperatures, precipitation and wind expected for the next 15 days in Illnau-Effretikon.
Will it rain tomorrow in Illnau-Effretikon?
Check the 48-hour hourly forecast to see exactly when precipitation is expected in Illnau-Effretikon.
What is the air quality in Illnau-Effretikon?
The air quality section displays the AQI index and PM2.5, PM10 and ozone concentrations measured near Illnau-Effretikon.
Are there weather alerts for Illnau-Effretikon?
Weather alerts (storms, high winds, extreme temperatures) are shown as a banner at the top of the page when active.
At what altitude is Illnau-Effretikon located?
Illnau-Effretikon sits at around 508 m above sea level in the canton of Zurich. This elevation directly affects the temperatures, rain-snow line and snow cover shown in the forecasts.
What is the warmest month in Illnau-Effretikon?
The warmest month in Illnau-Effretikon is July, averaging 19.1 °C (1991–2020 normal). The coldest is January at 1.0 °C.
How much does it rain in Illnau-Effretikon per year?
Illnau-Effretikon receives about 1050 mm of precipitation a year. The wettest month is July (120 mm), the driest February (57 mm).
When is the best time to visit Illnau-Effretikon?
For warmth and sunshine: July (19.1 °C on average, 233 h of sun). The coldest month is January (1.0 °C). Check the 15-day forecast above for your dates.