About Arni (AG)
Arni (AG) is a Swiss municipality located in the canton of Aargau (AG), at 47.315° latitude and 8.420° longitude. The municipality is part of the Swiss plateau, transitional temperate oceanic climate with four distinct seasons. Also known as Arni (AG), Arni (AG) benefits from precise weather monitoring with hourly and 15-day forecasts.
Climate of Arni (AG)
The climate in Arni (AG) 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 Arni (AG) and neighboring municipalities.
On this page you will find the detailed weather forecast for Arni (AG): current temperature, 48-hour hourly forecast, 15-day forecast, air quality, UV index, wind, precipitation and weather alerts. Updated hourly.
Climate of Arni (AG): 1991–2020 normals
In Arni (AG) (555 m), the mean annual temperature is 9.7 °C. The warmest month is July (18.9 °C on average) and the coldest January (0.8 °C). About 1067 mm of precipitation falls per year, peaking in July (125 mm) with a minimum in February (56 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 31.8 °C and the absolute minimum −8.7 °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 | 0.8 °C | 11.3 °C | −8.7 °C | 59 | 55 | 20 | 0 |
| Feb | 1.6 °C | 13.3 °C | −8.3 °C | 56 | 84 | 18 | 0 |
| Mar | 5.6 °C | 18.7 °C | −4.8 °C | 64 | 140 | 11 | 0 |
| Apr | 9.5 °C | 23.2 °C | −1.5 °C | 78 | 176 | 2 | 1 |
| May | 13.6 °C | 27.3 °C | 2.9 °C | 124 | 192 | 0 | 4 |
| Jun | 17.2 °C | 30.8 °C | 6.9 °C | 123 | 211 | 0 | 11 |
| Jul | 18.9 °C | 31.8 °C | 9.3 °C | 125 | 232 | 0 | 16 |
| Aug | 18.5 °C | 31.1 °C | 8.7 °C | 121 | 216 | 0 | 14 |
| Sep | 14.3 °C | 26.4 °C | 4.8 °C | 86 | 161 | 0 | 4 |
| Oct | 9.9 °C | 21.5 °C | 0.4 °C | 82 | 101 | 1 | 0 |
| Nov | 4.7 °C | 15.7 °C | −4.0 °C | 71 | 55 | 8 | 0 |
| Dec | 1.5 °C | 11.8 °C | −8.3 °C | 78 | 43 | 18 | 0 |
| Year | 9.7 °C | 31.8 °C | −8.7 °C | 1067 | 1666 | 77 | 49 |
Source: MeteoSwiss open data (1991–2020 normals) — stations Zürich / Fluntern (13 km, 604 m), Zürich / Affoltern (15 km, 444 m), Cham (15 km, 443 m), adjusted to the elevation of Arni (AG) (555 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.
Nearby cities
Check the weather of cities near Arni (AG):
- Weather Oberlunkhofen
- Weather Islisberg
- Weather Jonen
- Weather Unterlunkhofen
- Weather Aesch (ZH)
- Weather Hedingen
- Weather Affoltern am Albis
- Weather Bonstetten
- Weather Oberwil-Lieli
- Weather Ottenbach
- Weather Rottenschwil
- Weather Wettswil am Albis
→ Nearby cities · Canton Aargau
Frequently asked questions about weather in Arni (AG)
What is the weather in Arni (AG) today?
At the top of the page you will find the current temperature, precipitation and wind in Arni (AG), updated in real time.
What is the 15-day forecast for Arni (AG)?
The "15-day forecast" section shows min/max temperatures, precipitation and wind expected for the next 15 days in Arni (AG).
Will it rain tomorrow in Arni (AG)?
Check the 48-hour hourly forecast to see exactly when precipitation is expected in Arni (AG).
What is the air quality in Arni (AG)?
The air quality section displays the AQI index and PM2.5, PM10 and ozone concentrations measured near Arni (AG).
Are there weather alerts for Arni (AG)?
Weather alerts (storms, high winds, extreme temperatures) are shown as a banner at the top of the page when active.
At what altitude is Arni (AG) located?
Arni (AG) sits at around 555 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 Arni (AG)?
The warmest month in Arni (AG) is July, averaging 18.9 °C (1991–2020 normal). The coldest is January at 0.8 °C.
How much does it rain in Arni (AG) per year?
Arni (AG) receives about 1067 mm of precipitation a year. The wettest month is July (125 mm), the driest February (56 mm).
When is the best time to visit Arni (AG)?
For warmth and sunshine: July (18.9 °C on average, 232 h of sun). The coldest month is January (0.8 °C). Check the 15-day forecast above for your dates.