About Aristau
Aristau is a Swiss municipality located in the canton of Aargau (AG), at 47.291° latitude and 8.369° longitude. The municipality is part of the Swiss plateau, transitional temperate oceanic climate with four distinct seasons. Also known as Aristau, Aristau benefits from precise weather monitoring with hourly and 15-day forecasts.
Climate of Aristau
The climate in Aristau 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 Aristau and neighboring municipalities.
On this page you will find the detailed weather forecast for Aristau: current temperature, 48-hour hourly forecast, 15-day forecast, air quality, UV index, wind, precipitation and weather alerts. Updated hourly.
Climate of Aristau: 1991–2020 normals
In Aristau (380 m), the mean annual temperature is 10.6 °C. The warmest month is July (19.9 °C on average) and the coldest January (1.7 °C). About 1018 mm of precipitation falls per year, peaking in July (121 mm) with a minimum in February (52 mm). The sun shines for about 1666 hours a year, mostly in July (232 h). On average there are 77 frost days and 10 hot days (≥ 30 °C) per year. The mean monthly maximum reaches 32.7 °C and the absolute minimum −7.7 °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 | 1.7 °C | 12.2 °C | −7.7 °C | 54 | 55 | 20 | 0 |
| Feb | 2.5 °C | 14.2 °C | −7.4 °C | 52 | 84 | 18 | 0 |
| Mar | 6.5 °C | 19.6 °C | −3.9 °C | 59 | 140 | 11 | 0 |
| Apr | 10.4 °C | 24.1 °C | −0.7 °C | 75 | 176 | 2 | 1 |
| May | 14.5 °C | 28.2 °C | 3.7 °C | 119 | 192 | 0 | 4 |
| Jun | 18.2 °C | 31.7 °C | 7.8 °C | 118 | 211 | 0 | 11 |
| Jul | 19.9 °C | 32.7 °C | 10.2 °C | 121 | 232 | 0 | 16 |
| Aug | 19.5 °C | 32.0 °C | 9.5 °C | 119 | 216 | 0 | 14 |
| Sep | 15.2 °C | 27.4 °C | 5.6 °C | 83 | 161 | 0 | 4 |
| Oct | 10.8 °C | 22.5 °C | 1.3 °C | 78 | 101 | 1 | 0 |
| Nov | 5.6 °C | 16.6 °C | −3.2 °C | 66 | 55 | 8 | 0 |
| Dec | 2.4 °C | 12.8 °C | −7.6 °C | 73 | 43 | 18 | 0 |
| Year | 10.6 °C | 32.7 °C | −7.7 °C | 1018 | 1666 | 77 | 50 |
Source: MeteoSwiss open data (1991–2020 normals) — stations Cham (13 km, 443 m), Zürich / Fluntern (18 km, 604 m), Zürich / Affoltern (19 km, 444 m), adjusted to the elevation of Aristau (380 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.
Nearby cities
Check the weather of cities near Aristau:
- Weather Jonen
- Weather Rottenschwil
- Weather Muri (AG)
- Weather Besenbüren
- Weather Merenschwand
- Weather Ottenbach
- Weather Oberlunkhofen
- Weather Unterlunkhofen
- Weather Bünzen
- Weather Boswil
- Weather Arni (AG)
- Weather Affoltern am Albis
→ Nearby cities · Canton Aargau
Frequently asked questions about weather in Aristau
What is the weather in Aristau today?
At the top of the page you will find the current temperature, precipitation and wind in Aristau, updated in real time.
What is the 15-day forecast for Aristau?
The "15-day forecast" section shows min/max temperatures, precipitation and wind expected for the next 15 days in Aristau.
Will it rain tomorrow in Aristau?
Check the 48-hour hourly forecast to see exactly when precipitation is expected in Aristau.
What is the air quality in Aristau?
The air quality section displays the AQI index and PM2.5, PM10 and ozone concentrations measured near Aristau.
Are there weather alerts for Aristau?
Weather alerts (storms, high winds, extreme temperatures) are shown as a banner at the top of the page when active.
At what altitude is Aristau located?
Aristau sits at around 380 m above sea level in the canton of Aargau. This elevation directly affects the temperatures, rain-snow line and snow cover shown in the forecasts.
What is the warmest month in Aristau?
The warmest month in Aristau is July, averaging 19.9 °C (1991–2020 normal). The coldest is January at 1.7 °C.
How much does it rain in Aristau per year?
Aristau receives about 1018 mm of precipitation a year. The wettest month is July (121 mm), the driest February (52 mm).
When is the best time to visit Aristau?
For warmth and sunshine: July (19.9 °C on average, 232 h of sun). The coldest month is January (1.7 °C). Check the 15-day forecast above for your dates.