Use this site to estimate production based on your location.
Estimates the energy production and cost of energy of grid-connected photovoltaic (PV) energy systems throughout the world. It allows homeowners, small building owners, installers and manufacturers to easily develop estimates of the performance of potential PV installations
pvwatts.nrel.gov
You can enter in the size and orientation of your array, as well as a few other parameters, and then change that orientation setting to see what the changes are to the output by month and year.
At a latitude of 32° then reducing the panel tilt will, in general, increase Summer output potential at the expense of Winter production potential as well as reduce annual production. I say output potential because actual production depends on a lot more than the array and its orientation, and we know nothing of your system nor how it is configured.
How much depends on
- individual location factors, e.g. local climate which the website linked accounts for using average weather/climate data for that location,
- the actual set up of the system, e.g. the DC:AC ratio of panel to inverter, and
- what constraints on production there might be, which will depend on whether the system is grid-tied or off-grid, whether there are limits on exporting power, whether the system has sufficient loads, including storage, to use the full production potential of a system and so on...