Duqm tends to be quite safe for solo female travelers. Omani people are generally known for their hospitality and respect towards tourists, and you'll often find that locals are more than willing to help should you need it. While crime is relatively low, women may feel more comfortable dressing modestly to blend in with the local culture. It is also advised to avoid walking alone at night in isolated areas. Observing cultural norms and taking standard travel safety precautions will largely contribute to a hassle-free journey.