About Geltwil
Geltwil is a Swiss municipality located in the canton of Aargau (AG), at 47.249° latitude and 8.326° longitude. The municipality is part of the Swiss plateau, transitional temperate oceanic climate with four distinct seasons. Also known as Geltwil, Geltwil benefits from precise weather monitoring with hourly and 15-day forecasts.
Climate of Geltwil
The climate in Geltwil 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 Geltwil and neighboring municipalities.
On this page you will find the detailed weather forecast for Geltwil: current temperature, 48-hour hourly forecast, 15-day forecast, air quality, UV index, wind, precipitation and weather alerts. Updated hourly.
Climate of Geltwil: 1991–2020 normals
In Geltwil (653 m), the mean annual temperature is 9.2 °C. The warmest month is July (18.4 °C on average) and the coldest January (0.2 °C). About 1124 mm of precipitation falls per year, peaking in August (140 mm) with a minimum in January (54 mm). The sun shines for about 1610 hours a year, mostly in July (219 h). On average there are 74 frost days and 10 hot days (≥ 30 °C) per year. The mean monthly maximum reaches 31.0 °C and the absolute minimum −9.0 °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 | 0.2 °C | 10.9 °C | −8.8 °C | 54 | 55 | 20 | 0 |
| Feb | 1.1 °C | 12.7 °C | −8.5 °C | 56 | 84 | 18 | 0 |
| Mar | 5.0 °C | 18.1 °C | −5.3 °C | 61 | 138 | 10 | 0 |
| Apr | 9.0 °C | 22.5 °C | −2.1 °C | 85 | 169 | 2 | 1 |
| May | 13.1 °C | 26.7 °C | 2.3 °C | 133 | 182 | 0 | 4 |
| Jun | 16.8 °C | 30.2 °C | 6.5 °C | 135 | 197 | 0 | 12 |
| Jul | 18.4 °C | 31.0 °C | 8.9 °C | 139 | 219 | 0 | 16 |
| Aug | 18.0 °C | 30.4 °C | 8.1 °C | 140 | 207 | 0 | 14 |
| Sep | 13.8 °C | 25.8 °C | 4.3 °C | 94 | 155 | 0 | 4 |
| Oct | 9.4 °C | 21.1 °C | 0.0 °C | 83 | 104 | 1 | 0 |
| Nov | 4.1 °C | 15.3 °C | −4.6 °C | 68 | 57 | 7 | 0 |
| Dec | 0.9 °C | 11.5 °C | −9.0 °C | 75 | 43 | 17 | 0 |
| Year | 9.2 °C | 31.0 °C | −9.0 °C | 1124 | 1610 | 74 | 51 |
Source: MeteoSwiss open data (1991–2020 normals) — stations Cham (12 km, 443 m), Zürich / Fluntern (23 km, 604 m), Luzern (24 km, 454 m), adjusted to the elevation of Geltwil (653 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.
Nearby cities
Check the weather of cities near Geltwil:
- Weather Beinwil (Freiamt)
- Weather Buttwil
- Weather Muri (AG)
- Weather Auw
- Weather Merenschwand
- Weather Mühlau
- Weather Boswil
- Weather Aristau
- Weather Hünenberg
- Weather Hitzkirch
- Weather Aesch (LU)
- Weather Schongau
→ Nearby cities · Canton Aargau
Frequently asked questions about weather in Geltwil
What is the weather in Geltwil today?
At the top of the page you will find the current temperature, precipitation and wind in Geltwil, updated in real time.
What is the 15-day forecast for Geltwil?
The "15-day forecast" section shows min/max temperatures, precipitation and wind expected for the next 15 days in Geltwil.
Will it rain tomorrow in Geltwil?
Check the 48-hour hourly forecast to see exactly when precipitation is expected in Geltwil.
What is the air quality in Geltwil?
The air quality section displays the AQI index and PM2.5, PM10 and ozone concentrations measured near Geltwil.
Are there weather alerts for Geltwil?
Weather alerts (storms, high winds, extreme temperatures) are shown as a banner at the top of the page when active.
At what altitude is Geltwil located?
Geltwil sits at around 653 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 Geltwil?
The warmest month in Geltwil is July, averaging 18.4 °C (1991–2020 normal). The coldest is January at 0.2 °C.
How much does it rain in Geltwil per year?
Geltwil receives about 1124 mm of precipitation a year. The wettest month is August (140 mm), the driest January (54 mm).
When is the best time to visit Geltwil?
For warmth and sunshine: July (18.4 °C on average, 219 h of sun). The coldest month is January (0.2 °C). Check the 15-day forecast above for your dates.