We build weather data, and the products that run on it.

Zoomash Ltd is an independent software company in the UK. Since 2012 we have built weather APIs used by developers around the world, AI tools that turn forecasts into decisions, and apps and websites that people use every day.

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What we run

Every product below is designed, built and operated by Zoomash, from the forecast models at the bottom to the pages people read.

Weather dataAPIs and services for developers and businesses

WeatherAPI.com

weatherapi.com

A fast, simple weather and geolocation API returning JSON or XML. Realtime conditions, 14-day forecasts, history from 2010, marine and tides, air quality, pollen, alerts, astronomy and solar data, all from one key.

Trusted by more than a million users
Free plan with 100,000 calls a month
SDKs in ten languages and an MCP server for AI assistants

WorldWeatherOnline

worldweatheronline.com

One of the longest-running weather websites and premium weather APIs on the web. Local forecasts, historical weather, marine and ski weather for locations worldwide.

Used by more than 300,000 developers
Customers include major airlines and airports

WeatherAI.io

weatherai.io

A weather decision API. Instead of a raw forecast, one call says whether and when to do something outside, with a score, the best time windows and the risks to watch.

Covers more than 20 activities, from running and golf to crop spraying and drone flying
Built for apps and AI agents, with an MCP server included

Energy and healthWeather data put to work

Azuce

azuce.com

Solar production forecasting software for installers, built on our solar irradiance data, so installers can show customers what a system will generate.

Miing

miing.com

A real-time pollen and air quality tracker with five-day forecasts, to help people with allergies and hay fever plan their day. Available on the web and iPhone.

PublishingWebsites we write and run

Where2Holiday

where2holiday.com

Travel guides to places worth the journey, with a focus on less-visited towns and regions across Europe, Latin America, Asia and the Pacific.

Oplao

oplao.com

Practical writing on SEO: how search engines read titles, links, authorship and site quality, and what that means for the pages you publish.

Apps

We build our own iPhone apps, using the same data and infrastructure as our APIs.

Miing

iPhone and web

Pollen and air quality for every place you care about, with home-screen widgets, a symptom diary to spot what affects you, and reports you can export as PDF.

Visit miing.com

Hushbe

iPhone

A family wellbeing app that helps families look after each other day to day.

Under the hood

We run our own data pipelines and servers rather than reselling someone else's feed. That keeps our data fresh, our costs low and our prices fair.

Forecast model processing: We ingest raw output from global and regional weather models, including GFS, ECMWF, HRRR and NAM, and turn it into forecasts for tens of thousands of locations, many times a day.
Tides and marine: A global tide prediction system built on the FES2022 ocean tide model, giving tide times and heights for coastlines around the world.
Solar and energy: Solar irradiance and PV generation forecasts derived from model radiation data, used in our APIs and by solar installers through Azuce.
Severe weather alerts: Official government warnings collected from national weather services in the UK, Europe, the United States, India and beyond, matched to the exact areas they cover.
Air quality and pollen: Air quality indices and pollen forecasts, with regional pollen calendars covering Europe, North America, Australia, India, Japan and South Africa.
Built for AI: MCP servers, OpenAPI specifications and llms.txt files, so AI assistants and agents can find and use our weather data directly.

About Zoomash

Zoomash is a small, founder-led company. We write the code, run the servers and answer the support emails ourselves.

We started with weather because it touches almost every business, from airlines planning routes to apps telling someone whether to take an umbrella. Over the years that grew into a family of weather APIs, then into products that use the same data in new ways: solar forecasts, allergy tracking and AI that answers questions rather than just reporting numbers.

Alongside that we publish websites on travel and search, and build apps for iPhone. Whatever we make, the aim is the same: dependable, useful and fairly priced.

Company: Zoomash Ltd, registered in England and Wales
Founded: 2012
Based in: London, United Kingdom
Contact: Send us a message

Working on something that needs weather data?

We work with businesses on custom data feeds, enterprise API plans and partnerships. Tell us what you need.

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