About Bretzwil
Bretzwil is a Swiss municipality located in the canton of Basel-Country (BL), at 47.395° latitude and 7.652° longitude. The municipality is part of the Rhine valley, mild climate for Switzerland thanks to low elevation. Also known as Bretzwil, Bretzwil benefits from precise weather monitoring with hourly and 15-day forecasts.
Climate of Bretzwil
The climate in Bretzwil is characteristic of the Rhine valley, mild climate for Switzerland thanks to low elevation. 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 Bretzwil and neighboring municipalities.
On this page you will find the detailed weather forecast for Bretzwil: current temperature, 48-hour hourly forecast, 15-day forecast, air quality, UV index, wind, precipitation and weather alerts. Updated hourly.
Climate of Bretzwil: 1991–2020 normals
In Bretzwil (644 m), the mean annual temperature is 9.0 °C. The warmest month is July (18.2 °C on average) and the coldest January (0.3 °C). About 1013 mm of precipitation falls per year, peaking in May (111 mm) with a minimum in February (56 mm). The sun shines for about 1673 hours a year, mostly in July (238 h). On average there are 82 frost days and 8 hot days (≥ 30 °C) per year. The mean monthly maximum reaches 31.3 °C and the absolute minimum −9.7 °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 | 0.3 °C | 11.2 °C | −9.7 °C | 64 | 54 | 20 | 0 |
| Feb | 1.1 °C | 12.8 °C | −9.1 °C | 56 | 84 | 18 | 0 |
| Mar | 4.9 °C | 17.8 °C | −5.5 °C | 63 | 139 | 12 | 0 |
| Apr | 8.6 °C | 22.4 °C | −2.4 °C | 74 | 173 | 4 | 0 |
| May | 12.7 °C | 26.2 °C | 2.0 °C | 111 | 192 | 0 | 3 |
| Jun | 16.3 °C | 29.8 °C | 5.9 °C | 101 | 216 | 0 | 9 |
| Jul | 18.2 °C | 31.3 °C | 8.5 °C | 109 | 238 | 0 | 14 |
| Aug | 17.8 °C | 30.3 °C | 7.8 °C | 108 | 217 | 0 | 13 |
| Sep | 13.6 °C | 25.3 °C | 4.0 °C | 84 | 159 | 0 | 3 |
| Oct | 9.2 °C | 20.7 °C | −0.3 °C | 84 | 100 | 1 | 0 |
| Nov | 4.1 °C | 14.9 °C | −4.6 °C | 77 | 56 | 9 | 0 |
| Dec | 1.0 °C | 11.6 °C | −8.4 °C | 82 | 45 | 18 | 0 |
| Year | 9.0 °C | 31.3 °C | −9.7 °C | 1013 | 1673 | 82 | 42 |
Source: MeteoSwiss open data (1991–2020 normals) — stations Basel / Binningen (17 km, 316 m), Rünenberg (18 km, 611 m), Wynau (19 km, 422 m), adjusted to the elevation of Bretzwil (644 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.
Nearby cities
Check the weather of cities near Bretzwil:
- Weather Reigoldswil
- Weather Lauwil
- Weather Mümliswil-Ramiswil
- Weather Seewen
- Weather Zullwil
- Weather Waldenburg
- Weather Nunningen
- Weather Titterten
- Weather Ziefen
- Weather Liedertswil
- Weather Fehren
- Weather Meltingen
→ Nearby cities · Canton Basel-Country
Frequently asked questions about weather in Bretzwil
What is the weather in Bretzwil today?
At the top of the page you will find the current temperature, precipitation and wind in Bretzwil, updated in real time.
What is the 15-day forecast for Bretzwil?
The "15-day forecast" section shows min/max temperatures, precipitation and wind expected for the next 15 days in Bretzwil.
Will it rain tomorrow in Bretzwil?
Check the 48-hour hourly forecast to see exactly when precipitation is expected in Bretzwil.
What is the air quality in Bretzwil?
The air quality section displays the AQI index and PM2.5, PM10 and ozone concentrations measured near Bretzwil.
Are there weather alerts for Bretzwil?
Weather alerts (storms, high winds, extreme temperatures) are shown as a banner at the top of the page when active.
At what altitude is Bretzwil located?
Bretzwil sits at around 644 m above sea level in the canton of Basel-Country. This elevation directly affects the temperatures, rain-snow line and snow cover shown in the forecasts.
What is the warmest month in Bretzwil?
The warmest month in Bretzwil is July, averaging 18.2 °C (1991–2020 normal). The coldest is January at 0.3 °C.
How much does it rain in Bretzwil per year?
Bretzwil receives about 1013 mm of precipitation a year. The wettest month is May (111 mm), the driest February (56 mm).
When is the best time to visit Bretzwil?
For warmth and sunshine: July (18.2 °C on average, 238 h of sun). The coldest month is January (0.3 °C). Check the 15-day forecast above for your dates.