New styles for weather maps API

New styles for weather maps API

We added new version of rendering styles for Weathermap API.

To get weather map layers in new predefined styles you need to add _new to the appropriate layer name like the following:

http://tile.openweathermap.org/map/{layer}_new/{z}/{x}/{y}.png?appid={api_key}
History Bulk documentation

History Bulk documentation

For your convenience while working with our historical data we have created History Bulk section at OpenWeatherMap.com. There you can find a manual on data extraction for different time periods and cities, also there are examples of data extraction in JSON and CSV file formats and description of weather parameters.

Weather maps API updated

Weather maps API updated

Example of weather map layer  - layer's name: temperature, area: worldwide

OpenWeatherMap VANE platform provides many kinds of weather layers including Precipitation, Clouds, Pressure, Temperature, Wind, Snow and Rain.
See the full list of available layers at http://openweathermap.org/api/weathermaps#examples
You can connect them to mobile and web apps as ZXY-tile layers. It is also possible to combine several base maps and overlays in one map like in the following Weathermap example.
The documentation for Weather Maps has been updated. And there is an important change - please pay your attention, that starting from the next week, API key to access tiles will be obligatory.
Note, that Weather Maps are available for Free keys as well as for all paid ones.

Weather Historical Bulk is launched!

Weather Historical Bulk is launched!

We are happy to introduce you our new service which provides weather historical data for more than 30,000 cities for the last 5 years.

Now you can simply choose a city (or several cities) and download an archive, which contains bulk file with the weather history up to 5 years - any day, week or even several years. Pricing is simple and easy - just $10 for one city, no matter how much data will you receive http://openweathermap.org/price. Just sign in and place an order on your personal page https://home.openweathermap.org/history_bulks/new. Please note that our traditional History API stays the same.

One of the most popular cases for weather API’s usage is the weather widgets.

One of the most popular cases for weather API’s usage is the weather widgets.

OpenWeatherMap provides a bunch of weather API’s for developers, who create this kind of apps and many others. But our site is quite visited by users who’d like to check the weather for the certain city - so we created a various stuff of widgets you can copy and paste into your web page or blog as a ready-to-use JS code snippets no programming skills required.

Weather alerts from OpenWeatherMap

Weather alerts from OpenWeatherMap

We invite you to try our new product - the weather alerts which are based on our meteorological data.

Now you can use simple syntax and a few methods of the API to create triggers which will be working upon the occurrence of specified weather conditions (temperature, humidity, pressure, etc.) in a certain period of time. For example, if you are interested in the forecast of approach of frosts or probability of strengthening of wind in a certain place, then you can get this information by using our new tool. More detailed description of work with service is given below.

The alerts will be generated in our service after performing conditions of the trigger. It is necessary to poll service with a certain interval of time to receive it. In the future we are planning development of this direction, addition of push-notifications and new data sources.
http://openweathermap.org/triggers

Weather Alerts structure
http://openweathermap.org/triggers-struct

Weather Stations API 3.0

Weather Stations API 3.0

OpenWeatherMap is happy to announce good news for owners of private weather stations! We are launching a new version of Weather Stations API 3.0. Now there are more easy ways to manage your stations and transmit its data.  

Weather risk management on agricultural market through index-based insurance and weather data

Weather risk management on agricultural market through index-based insurance and weather data

In recent years, the problem of decreasing productivity of agriculture has arisen sharper due to climate change and long-term weather fluctuations; there is even the threat of famine in some countries, which are more dependable on crop productivity. This problem can be solved with traditional and known for centuries tools, i.e. by expansion of sowed land through deforestation.

Simultaneously, the intensification of manufacturing or the expansion of cultivated land into previously wild areas can lead to additional emission of greenhouse gases due to the removal of trees and also these processes can increase the amount of used fertilizers. These both actions are factors contributing to climate change and appearance of negative weather phenomena such as drought.

How to use OpenWeatherMap UV index

How to use OpenWeatherMap UV index

Thank you for the article  Francesco Azzola
  http://www.survivingwithandroid.com
 @survivingwithan
  https://it.linkedin.com/in/francescoazzola

This post describes how to use OpenWeatherMap UV index. This is an interesting API because we can use it to explore some important aspects about Android and location aware API. Openweathermap provides this API for free! As you may already know, OpenWeatherMap provides also a full set of API about weather information: you can get current weather conditions, forecast, historical information and so on. This information is free and we can use OpenWeatherMap API free of charge.

Focusing on this article, at its end, we will build an Android app that gets UV index and show it using Material design guidelines.

Before diving into the app details is useful to have an idea about UV index.

Modern approach to use of weather data in effective marketing

Modern approach to use of weather data in effective marketing

Recently the approach to marketing has greatly changed. Simple broadcasting of information about goods and services, even in the most whimsical of forms, is getting out-of-date quickly. At the moment those companies are the most successful who experience a flexible approach towards using of information, both current and historical.