Helsinki is a safe city to be in, even at night time. Feel free to roam around the downtown area in the early hours of the morning as there is a lot of hustle and bustle in the city. However, finding drunks on a tram or when passing a street is pretty common along with beggars in the vacation seasons. Just make sure you keep hold of your belongings and mobile phones and avoid talking to or engaging with drunks in any way. As a safety precaution always keep these following emergency numbers at hand.