I want to create a heat map with time-lapse using Google maps API. The problem is that Heatmaps use colors to represent the density of points. But, in my case the density of points is irrelevant. The colors on the map will be determined by the amount of methane for that location. However, these values are recorded every one hour at six different locations for which latitude and longitude values are available. I want to create a map using a specific set of values related to methane at different spots along with a time.

Example: If a value is low it will appear on the map with green color. If a value is high it will appear with red color.

I´ve searched the API documentation, but the only thing I found was using "weighted locations". This is not a suitable solution because it cannot change over time. I'm fine with python/javascript.