About Unterkulm
Unterkulm is a Swiss municipality located in the canton of Aargau (AG), at 47.336° latitude and 8.102° longitude. The municipality is part of the Swiss plateau, transitional temperate oceanic climate with four distinct seasons. Also known as Unterkulm, Unterkulm benefits from precise weather monitoring with hourly and 15-day forecasts.
Climate of Unterkulm
The climate in Unterkulm 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 Unterkulm and neighboring municipalities.
On this page you will find the detailed weather forecast for Unterkulm: current temperature, 48-hour hourly forecast, 15-day forecast, air quality, UV index, wind, precipitation and weather alerts. Updated hourly.
Climate of Unterkulm: 1991–2020 normals
In Unterkulm (520 m), the mean annual temperature is 9.4 °C. The warmest month is July (18.7 °C on average) and the coldest January (0.6 °C). About 1015 mm of precipitation falls per year, peaking in August (110 mm) with a minimum in February (58 mm). The sun shines for about 1559 hours a year, mostly in July (225 h). On average there are 77 frost days and 14 hot days (≥ 30 °C) per year. The mean monthly maximum reaches 32.4 °C and the absolute minimum −9.3 °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 | 0.6 °C | 10.8 °C | −9.3 °C | 69 | 43 | 19 | 0 |
| Feb | 1.3 °C | 13.1 °C | −8.7 °C | 58 | 75 | 18 | 0 |
| Mar | 5.3 °C | 18.5 °C | −5.3 °C | 68 | 134 | 11 | 0 |
| Apr | 9.2 °C | 23.2 °C | −2.0 °C | 72 | 169 | 3 | 1 |
| May | 13.3 °C | 27.2 °C | 2.3 °C | 108 | 183 | 0 | 4 |
| Jun | 16.9 °C | 30.8 °C | 6.1 °C | 101 | 206 | 0 | 12 |
| Jul | 18.7 °C | 32.4 °C | 8.5 °C | 109 | 225 | 0 | 17 |
| Aug | 18.2 °C | 31.3 °C | 7.8 °C | 110 | 208 | 0 | 15 |
| Sep | 13.9 °C | 26.2 °C | 3.8 °C | 78 | 151 | 0 | 4 |
| Oct | 9.5 °C | 21.0 °C | −0.2 °C | 79 | 88 | 1 | 0 |
| Nov | 4.4 °C | 14.8 °C | −4.3 °C | 76 | 44 | 8 | 0 |
| Dec | 1.3 °C | 11.2 °C | −8.0 °C | 88 | 33 | 17 | 0 |
| Year | 9.4 °C | 32.4 °C | −9.3 °C | 1015 | 1559 | 77 | 55 |
Source: MeteoSwiss open data (1991–2020 normals) — stations Buchs / Aarau (6 km, 387 m), Gösgen (10 km, 380 m), Rünenberg (20 km, 611 m), adjusted to the elevation of Unterkulm (520 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.
Nearby cities
Check the weather of cities near Unterkulm:
- Weather Gränichen
- Weather Teufenthal (AG)
- Weather Muhen
- Weather Hirschthal
- Weather Dürrenäsch
- Weather Seon
- Weather Oberkulm
- Weather Schöftland
- Weather Oberentfelden
- Weather Schafisheim
- Weather Hunzenschwil
- Weather Schlossrued
→ Nearby cities · Canton Aargau
Frequently asked questions about weather in Unterkulm
What is the weather in Unterkulm today?
At the top of the page you will find the current temperature, precipitation and wind in Unterkulm, updated in real time.
What is the 15-day forecast for Unterkulm?
The "15-day forecast" section shows min/max temperatures, precipitation and wind expected for the next 15 days in Unterkulm.
Will it rain tomorrow in Unterkulm?
Check the 48-hour hourly forecast to see exactly when precipitation is expected in Unterkulm.
What is the air quality in Unterkulm?
The air quality section displays the AQI index and PM2.5, PM10 and ozone concentrations measured near Unterkulm.
Are there weather alerts for Unterkulm?
Weather alerts (storms, high winds, extreme temperatures) are shown as a banner at the top of the page when active.
At what altitude is Unterkulm located?
Unterkulm sits at around 520 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 Unterkulm?
The warmest month in Unterkulm is July, averaging 18.7 °C (1991–2020 normal). The coldest is January at 0.6 °C.
How much does it rain in Unterkulm per year?
Unterkulm receives about 1015 mm of precipitation a year. The wettest month is August (110 mm), the driest February (58 mm).
When is the best time to visit Unterkulm?
For warmth and sunshine: July (18.7 °C on average, 225 h of sun). The coldest month is January (0.6 °C). Check the 15-day forecast above for your dates.