API Code Examples

// Browser (keep your key server-side in production)
const url = "https://api.worldweatheronline.com/premium/v1/weather.ashx?key=YOUR_API_KEY&q=London&format=json&num_of_days=3";
const res = await fetch(url);
const data = await res.json();
const today = data.data.weather[0];
console.log(today.date, today.maxtempC, today.mintempC);

// Node.js 18+ (built-in fetch)
const params = new URLSearchParams({
  key: process.env.WWO_API_KEY,
  q: "London",
  format: "json",
  num_of_days: "3",
});
const res = await fetch("https://api.worldweatheronline.com/premium/v1/weather.ashx?" + params);
const { data } = await res.json();
console.log(data.current_condition[0].temp_C);

import os, requests

r = requests.get(
    "https://api.worldweatheronline.com/premium/v1/weather.ashx",
    params={"key": os.environ["WWO_API_KEY"], "q": "London", "format": "json", "num_of_days": 3},
    timeout=10,
)
r.raise_for_status()
for day in r.json()["data"]["weather"]:
    print(day["date"], day["maxtempC"], day["mintempC"])

<?php
$query = http_build_query([
    "key" => getenv("WWO_API_KEY"),
    "q" => "London",
    "format" => "json",
    "num_of_days" => 3,
]);
$json = file_get_contents("https://api.worldweatheronline.com/premium/v1/weather.ashx?" . $query);
$data = json_decode($json, true);
echo $data["data"]["current_condition"][0]["temp_C"];

using System.Net.Http.Json;
using System.Text.Json;

var key = Environment.GetEnvironmentVariable("WWO_API_KEY");
using var http = new HttpClient();
var url = $"https://api.worldweatheronline.com/premium/v1/weather.ashx?key={key}&q=London&format=json&num_of_days=3";
var doc = await http.GetFromJsonAsync<JsonDocument>(url);
var today = doc!.RootElement.GetProperty("data").GetProperty("weather")[0];
Console.WriteLine($"{today.GetProperty("date")}: {today.GetProperty("maxtempC")}C");

// Java 11+
var key = System.getenv("WWO_API_KEY");
var uri = java.net.URI.create("https://api.worldweatheronline.com/premium/v1/weather.ashx?key=" + key + "&q=London&format=json&num_of_days=3");
var client = java.net.http.HttpClient.newHttpClient();
var req = java.net.http.HttpRequest.newBuilder(uri).build();
var res = client.send(req, java.net.http.HttpResponse.BodyHandlers.ofString());
System.out.println(res.body());