Idjárást

Időjárást, in standard Hungarian spelling as időjárás, refers to the weather and the day-to-day state of the atmosphere in a location. The form időjárást is the accusative case used when the noun is the object of a verb. In everyday usage, it encompasses the conditions of temperature, humidity, precipitation, wind, cloud cover, visibility, and atmospheric pressure.

Weather is studied by meteorology, which analyzes how atmospheric conditions change over hours to days. Weather patterns arise from interactions among air masses, solar heating, the rotation of the Earth, and geographic features such as mountains and coastlines. Commonly reported elements include temperature (measured in Celsius or Fahrenheit), precipitation (rain, snow, sleet, hail), wind speed and direction, humidity, cloudiness, and air pressure (measured in hectopascals or millibars).

Observations come from a network of weather stations, radar, satellites, and weather balloons. These data feed numerical weather prediction models that simulate the atmosphere to forecast future conditions. Short-term forecasts cover the next several hours, while longer-term outlooks extend to days. Forecast accuracy varies by location, season, and the complexity of weather systems.

Időjárás influences daily life, agriculture, transportation, energy use, and outdoor planning. National meteorological services provide official updates, while weather apps and broadcasters disseminate information to the public. The term is distinct from climate, which describes long-term patterns rather than immediate conditions.