Question on reliability of dewpoint, if I may. In Doha, Qatar it’s currently 47C during the day, but the humidity is only 11% so the dewpoint is 8C according the yr.no
But surely that doesn’t mean it’s comfortable to run in, does it? So does dp not work for extreme weather, but then what’s the point? I guess your sweat would instantly evaporate so it ‘would’ be comfortable if you could drink a litre of water every 5 minutes?