This work focuses on the analysis of the use of Twitter by different weather services around the world. During the last few years the availability of mobile phones connected to the Internet has become a global reality. Likewise, the use of different social networks has been popularized and extended with different purposes including social communication. In this context most meteorological weather services have been using some of these social tools in order to improve their services for the general public and specific users. Twitter is a social tool that enables users to post messages (tweets) of up to 280 characters (up to 140 before November 2017), supporting a wide variety of communicative practices. Twitter is an opportunity not only to spread messages without intermediaries, but also interact in real time with users. Here we present a study of different aspects related to the use of Twitter in diverse weather services worldwide and their evolution during the year 2016.