rayandsarah thank you so much for asking this Q and to all the members who answered ONYA !
I was going to post this same Q tonight (promise), I have had my ST for only 4 months an had noticed the same temp readings, when riding mine is between the min and half, say 1/3rd in traffic it goes up to 3/4rs but as soon as I'm rolling again it drops back to the 1/3rd mark, I had the bike checked my a mechanic who changed the coolant but couldn't find any leaks etc.
It still freaks me out to see the gauge at 3/4rs whilst in traffic, tho I do live in the NT...
Thanks all again and bless ya OzSTOC !!!
Paul.