The ideal period to plan a trip to Gadwal Fort, which is situated in Mahbubnagar district of Telangana, is during the winter months from October to February. During this time, the weather is relatively cool and pleasant, making it conducive for tourists to explore and enjoy the historical site. The temperatures during the day are comfortable, generally ranging between 15°C and 30°C, which allows visitors to comfortably roam the expansive precincts of the fort without worrying about the extreme heat that is characteristic of Indian summers.
Visiting Gadwal Fort in the monsoon season, from June to September, could also be an option if you don’t mind the occasional rainfall. The rains bring out the lush greenery of the surrounding regions, adding to the fort's appeal. However, it's important to check weather forecasts and be prepared for sporadic showers which might hinder outdoor activities. Arranging your visit during local festivals could also add to the experience, as the fort and surrounding region come alive with cultural events and traditional performances which showcase the local heritage and practices of the region.