Data & Utilities

WeatherCurrent conditions and forecasts worldwide

The Helix Weather API delivers current conditions and multi-day forecasts for any city or coordinates worldwide — temperature, humidity, wind, precipitation, and weather conditions. Powered by Open-Meteo, with global coverage and no datacenter-IP blocking.

Free tier with 100 requests/month
Fast, cached responses
99.9% uptime target
Standard REST + JSON

Get API Key (Free) →

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API Playground

What is the Weather API?

How it works

1GET /current?city=Berlin (or ?lat=&lon=) returns the current observation.
2GET /forecast?city=Tokyo&days=7 returns a daily forecast for up to 16 days.
3Each response includes temperature in °C, feels-like temperature, humidity, wind speed (km/h), precipitation (mm), and a human-readable condition.
4City names are auto-resolved to coordinates via Open-Meteo geocoding — no separate call needed.
5All endpoints are cached at the edge — repeated requests for the same location return instantly.

Endpoints

2 REST endpoints, all returning consistent JSON.

GET

/current

Current weather for a city or coordinates

GET

/forecast

Daily forecast for up to 16 days

Code in 5 languages

Copy and paste into your project. Replace YOUR_API_KEY with your RapidAPI key.

// Weather API
const response = await fetch(
  "https://weather-by-helix-api.p.rapidapi.com/current"
  {
    headers: {
      "X-RapidAPI-Key": "YOUR_API_KEY",
      "X-RapidAPI-Host": "weather-by-helix-api.p.rapidapi.com"
    }
  }
);

const data = await response.json();
console.log(data);

What developers build with this API

Real use cases from production deployments.

Travel & Outdoor Apps

Show the 7-day forecast on hotel listings, hike routes, or event pages. Conversion lifts when users know they won't get rained on.

Agriculture & Logistics

Trigger irrigation, dispatch decisions, or route changes based on rain probability. Pair with crop-cycle data or fleet GPS.

Smart Home & IoT

Have thermostats and blinds react to the outside conditions. One API call per device on each cycle.

Localized Content

Personalize an e-commerce homepage with weather-appropriate products (umbrellas in Seattle, sunscreen in Sydney).

Pricing

All tiers include this API. No credit card for free tier.

BASIC

Free

✓ 100 reqs/month
✓ Hard limit
✓ All endpoints

PRO

$9.99/mo

✓ 10,000/month
✓ +$0.005 each
✓ All endpoints

ULTRA

$29.99/mo

✓ 100,000/month
✓ +$0.002 each
✓ All endpoints

MEGA

$99.99/mo

✓ 1M+/month
✓ +$0.001 each
✓ All endpoints

View all 20 APIs included →

Frequently asked questions

Real answers to questions developers ask before integrating.

How current are the readings?

Open-Meteo refreshes observations every hour and forecasts several times a day.

What's the maximum forecast horizon?

16 days for daily forecasts. Beyond that, accuracy drops sharply for any provider.

Can I query by city name?

Yes — the API auto-resolves city names to coordinates. You can also pass lat/lon directly.

What units are returned?

Metric by default — °C, km/h, mm. Convert with our Unit Converter API if you need imperial.

Does it work worldwide?

Yes — coverage spans every populated location on Earth, including small towns and rural coordinates.

Ready to integrate Weather?

Get started with 100 free requests. No credit card. Production-ready in minutes.

Get Free API Key Read the Docs