Gobabeb is part of SASSCAL (the Southern African Science Service Centre for Climate Change and Adptive Land Management), and maintains a network of weather stations the feed data to SASSCAL databases (the Gobabeb Met Network). The Namibian weather stations may be found here.
Below is a map from Google Earth showing the locations of the weather stations in the Gobabeb met network. Hover over the location and click to see the daily conditions. Once there, you can view hourly or monthly records, as well as links to a variety of other filters and tools.
(Note that Ganab is currently out of service)