On Tuesday night seven cold weather shelters accommodated 765 people.
In early January, a daily average of 740 people stayed in shelters, which is 10% fewer than in the corresponding period in 2014, but with a cold snap arriving the number is set to rise.
Municipal authorities reminded members of the public to be responsible in their use alcohol and other intoxicants, as well as to be careful of low temperatures.
Homeless people are also being invited to visit soup kitchens for warm food, and members of the public are being asked to call emergency services if they spot people in distress on the streets.
Riga operates seven night shelters with 753 places, but, if necessary, the number of seats can be increased to the 933 when temperatures drop below -10°C.
