About Gränichen
Gränichen is a Swiss municipality located in the canton of Aargau (AG), at 47.354° latitude and 8.106° longitude. The municipality is part of the Swiss plateau, transitional temperate oceanic climate with four distinct seasons. Also known as Gränichen, Gränichen benefits from precise weather monitoring with hourly and 15-day forecasts.
Climate of Gränichen
The climate in Gränichen 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 Gränichen and neighboring municipalities.
On this page you will find the detailed weather forecast for Gränichen: current temperature, 48-hour hourly forecast, 15-day forecast, air quality, UV index, wind, precipitation and weather alerts. Updated hourly.
Climate of Gränichen: 1991–2020 normals
In Gränichen (419 m), the mean annual temperature is 9.9 °C. The warmest month is July (19.3 °C on average) and the coldest January (1.1 °C). About 991 mm of precipitation falls per year, peaking in August (106 mm) with a minimum in February (57 mm). The sun shines for about 1555 hours a year, mostly in July (225 h). On average there are 78 frost days and 14 hot days (≥ 30 °C) per year. The mean monthly maximum reaches 33.0 °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 | 1.1 °C | 11.3 °C | −8.9 °C | 68 | 42 | 19 | 0 |
| Feb | 1.8 °C | 13.6 °C | −8.2 °C | 57 | 75 | 18 | 0 |
| Mar | 5.8 °C | 19.1 °C | −4.8 °C | 66 | 133 | 11 | 0 |
| Apr | 9.7 °C | 23.8 °C | −1.5 °C | 69 | 169 | 3 | 1 |
| May | 13.9 °C | 27.8 °C | 2.8 °C | 106 | 183 | 0 | 5 |
| Jun | 17.5 °C | 31.4 °C | 6.6 °C | 99 | 206 | 0 | 12 |
| Jul | 19.3 °C | 33.0 °C | 9.0 °C | 106 | 225 | 0 | 18 |
| Aug | 18.7 °C | 31.9 °C | 8.3 °C | 106 | 208 | 0 | 16 |
| Sep | 14.5 °C | 26.8 °C | 4.3 °C | 76 | 151 | 0 | 4 |
| Oct | 10.0 °C | 21.6 °C | 0.3 °C | 78 | 87 | 1 | 0 |
| Nov | 5.0 °C | 15.3 °C | −3.8 °C | 74 | 44 | 8 | 0 |
| Dec | 1.8 °C | 11.7 °C | −7.5 °C | 86 | 32 | 17 | 0 |
| Year | 9.9 °C | 33.0 °C | −8.9 °C | 991 | 1555 | 78 | 56 |
Source: MeteoSwiss open data (1991–2020 normals) — stations Buchs / Aarau (4 km, 387 m), Gösgen (10 km, 380 m), Rünenberg (19 km, 611 m), adjusted to the elevation of Gränichen (419 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.
Nearby cities
Check the weather of cities near Gränichen:
- Weather Unterkulm
- Weather Teufenthal (AG)
- Weather Hunzenschwil
- Weather Schafisheim
- Weather Muhen
- Weather Seon
- Weather Suhr
- Weather Staufen
- Weather Buchs (AG)
- Weather Oberentfelden
- Weather Egliswil
- Weather Hirschthal
→ Nearby cities · Canton Aargau
Frequently asked questions about weather in Gränichen
What is the weather in Gränichen today?
At the top of the page you will find the current temperature, precipitation and wind in Gränichen, updated in real time.
What is the 15-day forecast for Gränichen?
The "15-day forecast" section shows min/max temperatures, precipitation and wind expected for the next 15 days in Gränichen.
Will it rain tomorrow in Gränichen?
Check the 48-hour hourly forecast to see exactly when precipitation is expected in Gränichen.
What is the air quality in Gränichen?
The air quality section displays the AQI index and PM2.5, PM10 and ozone concentrations measured near Gränichen.
Are there weather alerts for Gränichen?
Weather alerts (storms, high winds, extreme temperatures) are shown as a banner at the top of the page when active.
At what altitude is Gränichen located?
Gränichen sits at around 419 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 Gränichen?
The warmest month in Gränichen is July, averaging 19.3 °C (1991–2020 normal). The coldest is January at 1.1 °C.
How much does it rain in Gränichen per year?
Gränichen receives about 991 mm of precipitation a year. The wettest month is August (106 mm), the driest February (57 mm).
When is the best time to visit Gränichen?
For warmth and sunshine: July (19.3 °C on average, 225 h of sun). The coldest month is January (1.1 °C). Check the 15-day forecast above for your dates.