Quick Reference

A handy summary of everything you need to use the OpenWeather API.

Base URL

https://api.openweathermap.org/data/2.5/weather

Full Request Example

https://api.openweathermap.org/data/2.5/weather
  ?q=London,uk
  &appid=YOUR_API_KEY
  &units=metric

Required Parameters

Parameter	Description
q	City name (e.g. London or London,uk)
appid	Your API key

Optional Parameters

Parameter	Description	Default
units	metric / imperial / standard	standard
lang	Language for descriptions	en
lat & lon	Coordinates instead of city name	—

Status Codes

Code	Meaning
200	Success
401	Invalid API key
404	City not found
429	Rate limit exceeded
500	Server error

Useful Links

• OpenWeather API Docs
• Your API Keys
• OpenWeather Pricing

Tip

Bookmark this page for quick access whenever you are working with the OpenWeather API!