sezonal

Sezonal is an adjective used to describe phenomena that vary with the seasons or exhibit seasonal patterns. It is closely related to the word seasonal and is used across disciplines such as agriculture, economics, climatology, tourism, and energy planning to indicate regular, time-conditional variation that repeats annually.

In time series analysis, a sezonal component represents predictable fluctuations tied to the annual cycle. Analysts may apply seasonal adjustment techniques to isolate or remove this component in order to study underlying trends or irregular variation.

Applications include farming decisions based on growing seasons, retailers planning inventory and promotions for peak shopping periods, utilities forecasting demand with winter and summer peaks, and climate researchers characterizing seasonal patterns like snowfall, monsoons, or wildfire risk windows.

Usage and spelling vary by language. In English, the standard term is seasonal, but "sezonal" appears as a cognate or loanword in some languages or in multilingual contexts, and may appear in brand names or technical literature as an alternative spelling.

See also seasonality, time series decomposition, seasonal adjustment, climatology, agriculture.