I have a Glacier chiller and it saved our pool. I’m in the DFW area and the pool gets full sun during the hottest part of the day. Prior to the chiller, water temps would hit mid-90s around early July. I can now keep water temps in the low to mid-80s, regardless of how hot it gets.
I researched heater/chiller combos but was concerned about the cost of running one. Kinda like running an AC unit outdoors. Plus, I already had a gas heater. The Glacier is very economical to run, as it’s just a fan blowing across the water as it runs down a grid of baffles - basically a swamp cooler. It works best in low humidity, but we can get high humidity here and it keeps up. There are other TFP members in Houston, New Orleans and other very humid areas that also report success with their Glaciers. I would think that your climate would be perfect for an evaporative chiller.
I’ve had mine for something like 7 years and it’s still doing the job. I had to replace the fan motor last year, but that’s the only thing that’s gone wrong with it. I run it every day (night) for 17 hours, so I push it hard.
I found my installer on the Glacier website.
Good luck with whatever you choose!