Micronesia, as a remarkable pacific island, doesn't have many reported cases of violent crimes and it is generally safe to travel during the day. However, minor crimes such as petty theft are somewhat frequent so be cautious of your belongings. A bit of caution should be exercised at night as in any other place. Naturally, as a solo female traveler, it is advisable to avoid isolated areas and always let someone know your itinerary for enhanced safety.