Hey mate i am growing in similar conditions to you at the moment. I start my seedlings indoor under cfl and start putting them outside in dappled sunlight for a few hours at a time after they are a couple of weeks old. Our intense sun is a little much for young seedlings in my opinion. Those temps should be ok for older plants as I have plants doing well in the same environment, for young seedlings i would put them indoor under 10c of a night (if possible ). I would start the new seeds indoor under light if possible and introduce them to the sun gradually.
@912GreenSkell has written the best guides on the net about growing outdoor, see if you can find them and give them a good read (i would post a link but I'm a retard with technology)
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