Ubon Ratchathani is generally a safe destination for solo female travelers. The locals are generally friendly and helpful. As with any place, it is advisable to be cautious, especially during late-night outings and in remote areas. Use your own judgment and take the standard safety precautions. Muggings or violent crimes are relatively rare, but scams or minor thefts can occur. Always be aware of your belongings and your surroundings.