Programme
The rain writes half the schedule
Any construction programme in this country that ignores the weather is fiction. Tropical cyclones run roughly from June through November, with the worst of it usually between July and October, and the wet season affects far more than the days nobody can work.
Excavations flood and have to be dewatered before anything can be poured. Concrete placed into standing water is not concrete you want under your house. Masonry, plaster and paint all need surfaces that are dry enough, and in high humidity that takes longer than the tin says. Roofing and any work at height stops outright in wind.
We plan around it. Groundworks and the structural frame get pushed into the drier months where the start date allows, and the wet months are loaded with interior work that can carry on under a roof. Where the calendar does not cooperate, you get a programme with the weather allowance visible in it rather than buried.