The conditions that come with this rule, from its official sources.
Conditions from official sources
Can enter without prior approval with a residence permit valid for at least 4 months in a GCC country, the United States, Canada, Australia, Japan, South Korea or a European country.
Can enter without prior approval with a Schengen or US visa, used or not.
Passport validity
The source states no minimum passport validity.
Tourist entry only
These rules cover tourist visits. Work, study and transit follow other rules.
The other way round
What Jordan passport holders need to visit Namibia.
Jordan passport Namibia
e-Visa · 90 days
Fee
NAD 1,600.00
Maximum stay
Up to 90 days
NB: lf your country does not appear on any of the lists above then you require a visa and cannot apply for a visa-on-arrival. You must obtain an e-visa before traveling to Namibia