seasonal

typical of or suitable for the time of year ตามฤดูกาล

Permanent secretary for public health Dr Paijit Warachit said the current spread of the disease probably would fade around the end of next month, as it was a seasonal occurrence.

The Nasa mission was to target the study of certain seasonal atmospheric phenomena only active in the region during August and September.

Work to prevent Don Mueang airport from flooding again looks set to get underway soon, with a completion date of two months, just ahead of seasonal runoff arriving from the North.