Palmela is generally considered a safe destination for solo female travelers. The locals are friendly and crime rates are relatively low. However, like any other place, it's advisable to remain vigilant, especially at night. Basic safety precautions such as avoiding deserted areas late at night, not sharing your travel plans or accommodation details with strangers and keeping your belongings secure should be applied. While the risk is fairly low, it's always good to be cautious and alert.