People ask when the smoke season the dry season or even the burning season will start. All these three are the same, and they are quite bad for air quality. I would say it usually starts after a couple of months without rain. So in 2019 it already started in December or so and will probably last until we get some good storms in 2020, maybe mid April 2020. But who konws, nature is hard to predict and we get what we sow.
Swales and swale systems are essential for keeping water from the rainy season throughout the dry season.
In this video a guy explains how to dig swales in the tropics. The keywords are irrigation, digging ditches and swales: