We are reading the chart wrong. While the drive might have been 8C at some point its Temperature Current value is 92C = 197.6F!! Yes, its HOT!! But the chart highlighted the coldest temp which is probably when you first got it and plugged it in. A one time thing.
The chart is equally confusing with the Remaining Life numbers. Current is 0, the Threshold is 5 and the Worst is 100. If the Threshold is 5 I would think the warning would come if Current was 4 or 6 not 0.
Does the drive cool down after you stop loading stuff onto it?