Developing offshore wind power is a crucial initiative for Taiwan to promote sustainable development and green energy. This study proposes the concepts of "available weather window" and "required working window," and establishes a model to simulate the installation period of offshore wind turbines by combining the work experience of European offshore wind farms with the historical climatic record of wind and wave in the Taiwan Strait. The study analyzes wind speed and wave height data from 2012 to 2020 and deduces that the optimal start time for the Yunlin offshore wind farm is in February, with the most suitable month for installing wind turbines concentrated from mid-April to early October. These results are helpful for offshore wind turbine builders in determining the best time to sail and the most effective transportation strategy to improve construction efficiency and alleviate delays. The findings can also serve as a reference for future studies and the development of other offshore wind farms.