Yunfu is generally safe for solo female travelers. Like many cities in China, it has a low crime rate, and the locals are usually friendly and helpful. It's always important to take general safety precautions, like avoiding unlit and isolated areas at night and keeping your valuables secure. Communication might be challenging if you don't speak Mandarin, but the prevalence of technology like translation apps can help to bridge this gap. As always, be respectful of local customs and norms.