World Weather Online

World Weather Online World Weather Online is dedicated to providing global weather forecasts and weather API.

World Weather Online is dedicated to providing global weather forecast and weather content for websites, businesses and the travel industry. We have a passion for the weather, climate and the environment and want to share what we love with as many people as we can in a practical way. Whether you are looking for information on the latest ski conditions, marine conditions, holiday weather reports or day to day forecasts for towns and cities, we are continually working hard in order to provide you with accurate and up-to-date weather reports. Our sports weather forecasts show weather reports and predictions for weather conditions for cricket, football and golfing tournaments and matches worldwide. We aim to deliver accurate and up to date weather reports to users around the world whether they are looking for daily weather updates, surf reports, ski forecasts or just have a passing interest in the weather. Our weather blog and social media pages also feature information on seasonal phenomena, global warming discussions and articles on other interesting elements of the weather and climate. We cover approximately 3 million cities/towns worldwide and our weather forecast is trusted and used by a wide variety of companies and organisations from SME's to large corporate clients. That includes Intelligent Planet, Sonitus Systems, Skydive Mag, G&D Creations, Surfcast, Weathercare and many more. Many of these companies have joined our API community which has immense benefits such as free promotion to over one million visitors that we receive each month. We currently operate two high-tech weather data centres; one situated in Denmark and the other in Germany. We also have dedicated team members working in the UK, USA and India in order to make sure that our information stays as current as possible and delivers the best possible service to all our users. Our Weather API (http://developer.worldweatheronline.com) allows developers and programmers to access free 5 day weather content in a range of formats that include XML, CSV and JSON. You can use our Weather API to access weather data for any location as long as you have access to the city and town, postal or zipcode or by using latitude and longitude. We have developed our own weather forecasting model which delivers reliable and accurate weather information for any geo-point in the world. Our weather model is run along with other metrological models like European Centre for Medium-Range Weather Forecasts, World Meteorological Organization, NASA weather satellite imagery, NOAA GFS2 model and JMA model for research and training purposes and deliver the most accurate weather forecast possible. We can’t promise that we’ll be right every single time, but we’ll try our best not repeat the mistakes of Michael Fish by continuously improving our services, upgrading our technology and the prediction model we use in order to be as accurate as we possibly can. If you are looking for more advanced weather content for your website or your business please see our Weather service for our full range of services. Blog: http://blog.worldweatheronline.com
API: http://developer.worldweatheronline.com

20/10/2026

⚽🌊 FLOODED PITCH, MATCH CANCELLED!
The SCR Peña Deportiva vs UCAM Murcia CF match, scheduled for October 18 in round 7 of the Segunda Federación, never kicked off. Torrential rain from DANA Adam left the stadium in Santa Eulària, Ibiza 🇪🇸 completely under water.
The referee stepped onto the pitch to test the ball, but it wouldn't bounce. It just floated. With a red alert for torrential rain on the island, the match was suspended and postponed. A new date will be set by the competition authorities.
🌧️ Follow for more weather updates
🌐 www.worldweatheronline.com

20/10/2026

ICYMI: Decoding Cloud Cover Fields: What oktas Actually Tell You: Cloud cover in weather APIs isn't just a percentage. Here's what oktas mean, where the field breaks down, and how to use it without misleading your users.

The post Decoding Cloud Cover Fields: What oktas Actually Tell You appeared first on Weather Blog.

ICYMI: Split-Testing Your Prompts: What You Learn From Running Two Versions: Running two prompt variants side-by-side te...
20/10/2026

ICYMI: Split-Testing Your Prompts: What You Learn From Running Two Versions: Running two prompt variants side-by-side teaches you more than any prompt guide. Here's how to actually do it and what to watch for.

AI Split-Testing Your Prompts: What You Learn From Running Two Versions October 19, 2026 - By Athar Ahmad Most people iterate on prompts by feel. Something comes back wrong, they tweak a word, run it again, and decide whether the new version is better. That works well enough for one-off tasks. It c...

ICYMI: England’s Autumn Drought Deepens: Why Reservoirs Are Running Dry Before Winter: Autumn usually brings welcome rai...
19/10/2026

ICYMI: England’s Autumn Drought Deepens: Why Reservoirs Are Running Dry Before Winter: Autumn usually brings welcome rainfall to England, replenishing rivers and reservoirs after the warmer summer months. However, this October exposed reservoir beds and unusually low river levels, telling a completely different story. Despite occasional showers …

The post England’s Autumn Drought Deepens: Why Reservoirs Are Running Dry Before Winter appeared first on Weather Blog.

England's autumn drought worsens as reservoirs fall to 54% capacity. Explore the record rainfall shortage, water restrictions and winter outlook.

ICYMI: Istanbul’s Worst Floods in 80 Years: How Two Days of Rain Brought a Megacity to Its Knees: Istanbul experienced o...
19/10/2026

ICYMI: Istanbul’s Worst Floods in 80 Years: How Two Days of Rain Brought a Megacity to Its Knees: Istanbul experienced one of its most devastating weather disasters in more than eight decades. On October 14, 2026, an unprecedented torrential rainfall overwhelmed neighborhoods, submerged roads, and swept vehicles through flooded streets. Consequently, the downpour …

The post Istanbul’s Worst Floods in 80 Years: How Two Days of Rain Brought a Megacity to Its Knees appeared first on Weather Blog.

Istanbul's worst floods in 80 years leave four dead after extraordinary rainfall. Explore the records, damage, causes and weather risks.

19/10/2026

Decoding Cloud Cover Fields: What oktas Actually Tell You: Cloud cover in weather APIs isn't just a percentage. Here's what oktas mean, where the field breaks down, and how to use it without misleading your users.

The post Decoding Cloud Cover Fields: What oktas Actually Tell You appeared first on Weather Blog.

Split-Testing Your Prompts: What You Learn From Running Two Versions: Running two prompt variants side-by-side teaches y...
19/10/2026

Split-Testing Your Prompts: What You Learn From Running Two Versions: Running two prompt variants side-by-side teaches you more than any prompt guide. Here's how to actually do it and what to watch for.

AI Split-Testing Your Prompts: What You Learn From Running Two Versions October 19, 2026 - By Athar Ahmad Most people iterate on prompts by feel. Something comes back wrong, they tweak a word, run it again, and decide whether the new version is better. That works well enough for one-off tasks. It c...

England’s Autumn Drought Deepens: Why Reservoirs Are Running Dry Before Winter: Autumn usually brings welcome rainfall t...
18/10/2026

England’s Autumn Drought Deepens: Why Reservoirs Are Running Dry Before Winter: Autumn usually brings welcome rainfall to England, replenishing rivers and reservoirs after the warmer summer months. However, this October exposed reservoir beds and unusually low river levels, telling a completely different story. Despite occasional showers …

The post England’s Autumn Drought Deepens: Why Reservoirs Are Running Dry Before Winter appeared first on Weather Blog.

England's autumn drought worsens as reservoirs fall to 54% capacity. Explore the record rainfall shortage, water restrictions and winter outlook.

18/10/2026

Istanbul’s Worst Floods in 80 Years: How Two Days of Rain Brought a Megacity to Its Knees: Istanbul experienced one of its most devastating weather disasters in more than eight decades. On October 14, 2026, an unprecedented torrential rainfall overwhelmed neighborhoods, submerged roads, and swept vehicles through flooded streets. Consequently, the downpour …

The post Istanbul’s Worst Floods in 80 Years: How Two Days of Rain Brought a Megacity to Its Knees appeared first on Weather Blog.

18/10/2026

Most weather apps tell you it'll be 14°C with a 30% chance of rain. You still have to decide what that means for you. ☔

So we built weatherAI.io, a Decision API that answers the question people actually ask: should I do this, and when?

Ask about a run in London tomorrow, a concrete pour in Leeds this week, or how your solar panels will do on Saturday. One call gets you:
✅ a verdict (great, good, fair, poor or avoid)
📊 a 0–100 score
🕒 the best time window
⚠️ the risks, and when they hit

21 activities, from running, golf and sailing to roofing, crop spraying and solar output. It weighs wind, rain, heat stress, air quality, pollen and sunshine, anywhere in the world, up to 14 days ahead.

Built for developers and AI assistants. Now listed in the Claude connectors directory: add it in one click and just ask in plain words. Also works with ChatGPT, Cursor, VS Code and Gemini CLI.

1,000 free calls every month, then £0.0012 per call. No card needed to start.
👉 Try it: weatherai.io

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