Estery beer. Look for a small, used chest freezer on Craigslist. Add a temp controller and use it as a fermentation chamber.

You can brew good ales without a problem. All you need to do is swamp cool. Get one of the 20 gallon tub totes at Lowes or Home Depot, put your fermentation carboy or bucket in the tote, fill it with water but not to the point that it floats. Freeze soda bottles or other containers full of water, and toss them in the tub of water. Swap them out twice a day, morning & evening. Add or subtract more bottles as necessary to keep the water temp around 64 degrees. Ferment for two weeks then rack & bottle. You can do the same with a Mr. Beer kit, just put the keg in a cooler, no water, and swap out ice packs twice daily.

Zymergy had an article on a Micro-brewery in Costa-Rica and their efforts. Their current line-up consist of ale due to the ambient temps but even then you want have a way of temperature controlling your fermentation space. Some of the Ale yeasts work well into the 80's but as one poster said, you'll get esters as the by-product. In some beers, *some* esters are desirable but as a general rule you don't want them there so you have to be careful about the strain of yeast you use. Without AC you're options are limited but you can use a glycol-based setup which is a bit more expensive or you could find an old chest cooler, buy a temperature controller and use it to ferment. The temp controller will 'fire' the compressor on the freezer as needed so you can lock in any fermentation temp you need; from deep lager (36-42,) to Belgian Ales (71-83.)

It's not as nice as it sounds.... nice sunny weather, cool ocean breezes, attractive women running around in skimpy bikinis...

Just another crappy day in paradise.

Some of the Belgium recipes calls for a high fermentation temp. You might look into those if you like Belgiums.

Yeah, do a saison. Even most Belgians won't be good in the 80s, you typically want to pitch mid 60s or so and let it rise to mid to low 70s. Keep in mind this is beer temp, which is a few (say 3F) degrees higher than ambient...

I haven't made this, but I got it from a guy who one first place in a good sized competition with it...

Can make it into a mashtun for all grain later too (the cooler)