[mhh__]

Arrakis is alien but it's depicted as relatively friendly in the dream-sequences. They used sounds of waves crashing on beaches, which makes a lot of sense as to the Fremen it is their home.

My only gripe is that Arrakis doesn't feel hot enough, but I also don't really care.

[ableal]

The Mongolian Gobi desert seems to top out at 27C - https://www.amicusmongolia.com/climate-average-monthly-tempe...

(Low of -33C, harsh)

[SeanLuke]

Sure, but in the novel, Arrakis really is hot. In the Appendix, it's stated that the sand surface reached 76.85 Celsius (170.33 F).

[hef19898]

Sand surface =/= ambient temperature, with all the research that went into Dune, I think Herbert was aware of that

[SeanLuke]

[sigh]. You could have just googled this, but from the Appendix:

> He found that in the wide belt contained by the 70-degree lines, north and south, temperatures for thousands of years hadn't gone outside the 254-332 degrees (absolute) range

That's -2 F to 137 F in the arctic circle.

> Kynes and his people turned their attention from these great relationships and focused now on micro-ecology. First, the climate: the sand surface often reached temperatures of 344° to 350° (absolute). A foot below ground it might be 55° cooler; a foot above ground, 25° cooler.

That's 114 to 125 degrees Fahrenheit for "a foot above ground".

So once again, yes, very hot.