4 ms·
And from the linked Wikipedia article "theoretical limit to human survival for more than a few hours in the shade, even with unlimited water, is a wet-bulb temp
by airstrike 4y ago
And from the linked Wikipedia article "theoretical limit to human survival for more than a few hours in the shade, even with unlimited water, is a wet-bulb temperature of 35 °C (95 °F)"
OK, that's not comforting at all