posted on Jun, 16 2014 @ 06:06 PM
This animation of Earth
various overlays that can be clicked on (click on the "Earth" text to open the options) - including relative humidity - the link takes you to the
Nth Atlantic with high humidity in light blue/turquoise, low humidity in straw/yellow.
So at a glance you can see if there is any data that indicates high or low RH in any given area.
I expect the data is not complete for all overlays, and that at least some of it is projected/estimated from what is known at a non-trivial level.
But it might be of use to someone.