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Perfect! Thank you for the tip!We were there last March 6th thru 12th on the Aggressor. Water temperatures were 84 - 86 F. I wore a 1/2 mil for up to 5 dives a day. Others wore 3 mils.
In most northern hemisphere dive locales, water temps are often coldest in March-May. I've been in Palau in March and in May and both times enjoyed 84 (+/- 2 deg) degree water every time (with no significant temp variation at depth). Also, topside tends to be a bit warm and humid so you don't have to worry much about losing heat from evaporation (though it can get chilly in a squall). 3mm hyperstretch was just fine for J and I on a liveaboard schedule, though thermal protection is always a subjective call.
thank you guamrider!There's lots of good info on Palau here, including water temps. " Palau Information