Swiss Weather (CH)

Retrieve current weather and today's forecast for Swiss locations using Open-Meteo.

When to use

• User asks for weather in Switzerland.
• Input is a Swiss city/place name or 4-digit Swiss ZIP code.

Inputs

• query: Place name or Swiss ZIP (e.g., Zürich, 8001).

APIs

• Geocoding: https://geocoding-api.open-meteo.com/v1/search
• Forecast: https://api.open-meteo.com/v1/forecast

Steps

1. Detect ZIP vs place name.
   • ZIP pattern: ^\d{4}$ → treat as postal code.
   • Otherwise treat as place name.
2. Geocode with Switzerland filter:
   • name=<query>
   • count=1
   • language=de
   • countryCode=CH
3. If no results, return: Kein Ort in der Schweiz gefunden für "<query>".
4. Fetch weather using resolved latitude and longitude:
   • timezone=auto
   • current=temperature_2m,apparent_temperature,weather_code,wind_speed_10m,precipitation
   • daily=temperature_2m_max,temperature_2m_min,weather_code,precipitation_sum,sunrise,sunset
   • forecast_days=1
5. Map weather_code to a short German description (see table).
6. Output a concise summary in German (see template).

Output template (German)

Wetter für <Ort>, Schweiz

Aktuell: <temp>°C (gefühlt <feels>°C), <Bedingung>
Wind: <wind> km/h | Niederschlag: <precip> mm

Tagesprognose:
  Höchst: <max>°C | Tiefst: <min>°C
  Bedingungen: <Bedingung>
  Niederschlag: <sum> mm erwartet
  Sonnenaufgang: <sunrise> | Sonnenuntergang: <sunset>

WMO weather code mapping (concise)

• 0: Klar
• 1–3: Leicht bewölkt bis bedeckt
• 45, 48: Nebel
• 51–55: Nieselregen
• 61–65: Regen
• 71–75: Schnee
• 80–82: Regenschauer
• 95–99: Gewitter