About Riehen
Riehen is a Swiss municipality located in the canton of Basel-City (BS), at 47.568° latitude and 7.628° longitude. The municipality is part of the Rhine valley, mild climate for Switzerland thanks to low elevation. Also known as Riehen, Riehen benefits from precise weather monitoring with hourly and 15-day forecasts.
Climate of Riehen
The climate in Riehen 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 Riehen and neighboring municipalities.
On this page you will find the detailed weather forecast for Riehen: current temperature, 48-hour hourly forecast, 15-day forecast, air quality, UV index, wind, precipitation and weather alerts. Updated hourly.
Climate of Riehen: 1991–2020 normals
In Riehen (296 m), the mean annual temperature is 10.8 °C. The warmest month is July (19.6 °C on average) and the coldest January (2.2 °C). About 840 mm of precipitation falls per year, peaking in May (97 mm) with a minimum in February (45 mm). The sun shines for about 1717 hours a year, mostly in July (235 h). On average there are 60 frost days and 14 hot days (≥ 30 °C) per year. The mean monthly maximum reaches 32.0 °C and the absolute minimum −7.9 °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 | 2.2 °C | 13.3 °C | −7.9 °C | 48 | 67 | 16 | 0 |
| Feb | 3.4 °C | 15.0 °C | −6.5 °C | 45 | 89 | 13 | 0 |
| Mar | 7.0 °C | 20.3 °C | −3.6 °C | 50 | 139 | 8 | 0 |
| Apr | 10.7 °C | 24.3 °C | −0.3 °C | 63 | 170 | 2 | 1 |
| May | 14.6 °C | 27.9 °C | 4.3 °C | 97 | 186 | 0 | 5 |
| Jun | 17.9 °C | 30.9 °C | 7.9 °C | 86 | 211 | 0 | 13 |
| Jul | 19.6 °C | 32.0 °C | 10.2 °C | 89 | 235 | 0 | 18 |
| Aug | 19.2 °C | 31.3 °C | 9.6 °C | 88 | 219 | 0 | 16 |
| Sep | 15.1 °C | 26.0 °C | 6.0 °C | 70 | 165 | 0 | 5 |
| Oct | 11.0 °C | 22.5 °C | 1.9 °C | 74 | 112 | 1 | 0 |
| Nov | 6.0 °C | 16.6 °C | −2.8 °C | 65 | 68 | 6 | 0 |
| Dec | 3.0 °C | 14.1 °C | −6.3 °C | 65 | 56 | 15 | 0 |
| Year | 10.8 °C | 32.0 °C | −7.9 °C | 840 | 1717 | 60 | 59 |
Source: MeteoSwiss open data (1991–2020 normals) — stations Basel / Binningen (4 km, 316 m), St. Chrischona (4 km, 493 m), Rünenberg (24 km, 611 m), adjusted to the elevation of Riehen (296 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.
Nearby cities
Check the weather of cities near Riehen:
- Weather Birsfelden
- Weather Basel
- Weather Muttenz
- Weather Bettingen
- Weather Münchenstein
- Weather Binningen
- Weather Bottmingen
- Weather Augst
- Weather Reinach (BL)
- Weather Pratteln
- Weather Allschwil
- Weather Arlesheim
→ Nearby cities · Canton Basel-City
Frequently asked questions about weather in Riehen
What is the weather in Riehen today?
At the top of the page you will find the current temperature, precipitation and wind in Riehen, updated in real time.
What is the 15-day forecast for Riehen?
The "15-day forecast" section shows min/max temperatures, precipitation and wind expected for the next 15 days in Riehen.
Will it rain tomorrow in Riehen?
Check the 48-hour hourly forecast to see exactly when precipitation is expected in Riehen.
What is the air quality in Riehen?
The air quality section displays the AQI index and PM2.5, PM10 and ozone concentrations measured near Riehen.
Are there weather alerts for Riehen?
Weather alerts (storms, high winds, extreme temperatures) are shown as a banner at the top of the page when active.
At what altitude is Riehen located?
Riehen sits at around 296 m above sea level in the canton of Basel-City. This elevation directly affects the temperatures, rain-snow line and snow cover shown in the forecasts.
What is the warmest month in Riehen?
The warmest month in Riehen is July, averaging 19.6 °C (1991–2020 normal). The coldest is January at 2.2 °C.
How much does it rain in Riehen per year?
Riehen receives about 840 mm of precipitation a year. The wettest month is May (97 mm), the driest February (45 mm).
When is the best time to visit Riehen?
For warmth and sunshine: July (19.6 °C on average, 235 h of sun). The coldest month is January (2.2 °C). Check the 15-day forecast above for your dates.