Weatherbit

Overview

Weatherbit offers current weather, 16-day forecasts, historical data, and weather alerts via a key-based REST API. It’s an APILayer-backed weather provider with a free tier and multiple paid plans — a common choice for apps that need reliable forecast data with higher limits.

Quick Start

Current weather (replace YOUR_KEY):

curl "https://api.weatherbit.io/v2.0/current?key=YOUR_KEY&lat=35&lon=139&units=M"

16-day forecast:

curl "https://api.weatherbit.io/v2.0/forecast/daily?key=YOUR_KEY&city=Tokyo&days=5"

Hourly forecast:

curl "https://api.weatherbit.io/v2.0/forecast/hourly?key=YOUR_KEY&lat=35&lon=139&hours=24"

Historical data:

curl "https://api.weatherbit.io/v2.0/history/daily?key=YOUR_KEY&lat=35&lon=139&start_date=2026-08-01&end_date=2026-08-10"

Authentication

• Register at weatherbit.io for a free API key (instant, emailed).
• Send it as the key query parameter (an invalid key returns 403 — verified).

Rate Limits & Notes

• Free tier: ~100 requests/day (1,500/month on some plans) — small; paid tiers scale.
• Query by lat+lon, city, or US ZIP; units=M (metric), I (imperial), S (scientific).
• Free tier typically covers current + forecast (limited days); history is on paid tiers.
• Responses include weather.description, temp, precip, wind_spd, and uv.

FAQ

Is Weatherbit free? Small free tier (~100 req/day); higher limits and history are paid.

How do I get a key? Register at weatherbit.io — the key is emailed.

What’s the difference from OpenWeatherMap? Similar features; Weatherbit has a smaller free tier but a clean API and generous paid plans.