Marib lies at around 1100 metres elevation on the edge of the Rub' al Khali desert. The climate is hot and dry for most of the year, but less extreme than the coastal lowlands. October through March brings cooler temperatures — daytime highs of 25–30°C and cool nights — and is the most comfortable time to visit the outdoor archaeological sites.
The summer months (June–September) see temperatures exceeding 40°C and are not suitable for extended time at exposed sites. There is no meaningful rainy season at Marib itself, though heavy rains in the western highlands can cause flash flooding in the wadis.
As of the mid-2020s, the security situation makes all travel to Marib impossible. This section is preserved for when conditions allow a return to tourism.