January and February are the ideal months to visit Negeri Sembilan as the weather is very pleasant. Rainfall is less during these months and the average maximum day temperature is 31 degrees Celcius. If you prefer summer months then May to September is a good time to visit Negeri Sembilan with maximum day temperature being 32 degrees Celcius. October to December is the monsoon season in Negeri Sembilan when precipitation is as high as 280mm. April is highly unsuitable for visiting Negeri Sembilan as rainfall is high and weather conditions make it impossible to visit places.