seasonal

Of, related to, or reliant on a season or period of the year, especially with regard to weather characteristics.

It is a seasonal swimming pool.

The cult of the holiday camp has brought seasonal expresses to fresh destinations such as Penychain, in North Wales; over 250,000 people go by train annually to Butlin's holiday camps alone.

Appropriate to the season.

Q: How's the weather there? A: The wind is pretty stiff, but it's seasonal, so no complaints.

Q: Eyewitness News now turns to Steve for a weather update. Steve, what does the coming week have in store for us? A: Well, Stacy, get ready for the return of seasonal temperatures, because our little break from the cold will be coming to an end.

Anything that is seasonal, such as a financial trend, a product for sale, or an employee.