At these temperatures any water would evaporate nearly instantaneously. Previous probes from the Pioneer Spacecraft in December 1978 revealed very high winds aloft in its atmosphere, approaching speeds of 200 mph. This could explain why the night side of the planet has temperatures nearly the same as the day side, as the strong winds aloft transfer heat around the globe. However it appears that the surface winds are very light. In short, Venus is by far the hottest planet in our solar system, with a very minimal diurnal temperature spread.
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