​The Weather business area serves customers in meteorological, airport, road and rail, defense as well as in energy and maritime markets. It provides products and solutions to support customers in their operational decision making under any weather conditions. Accurate, real-time, uninterrupted and reliable weather data is the cornerstone of efficient operations for these customers.

Meteorology serves meteorological and hydrological institutes whose primary interest is safety and wellbeing of people and safeguarding of property. Customer needs vary from from standard weather observation equipment to further automation of the weather networks and remote monitoring,  Turnkey projects and capability upgrades for severe weather prediction are important for customers in the developing markets.

At airports, Vaisala's weather observation offering supports decision making to improve the efficiency, safety and environmental compatibility of airport operations.

Roads and rail authorities benefit from Vaisala's complete weather and traffic observation, driver information and decision support offerings. These ensure safety and optimize the efficiency of traffic management and road maintenance operations.

Vaisala weather observation products and systems are used in defense weather observation applications.

Energy customers, such as wind farm developers and operators, use Vaisala products and services to measure, forecast and intelligently integrate environmental observations. Maritime customers include the shipping industry, offshore oil and gas platforms, and ports. Reliable measurements and environmental observations help customers enhance  their operational efficiency and optimize decision-making.