If you're looking for summer vibes, the best time to travel to Riga is in August, July and May, when the average temperature reaches 17.59 °C, while May, June and July are the 3 sunniest months of the year, with an average of 124.44 hours.
However, if you prefer colder temperatures, make sure you visit Riga during January, February or March to experience an average of -2.83 °C.
For those who don't care too much about temperatures, but want to avoid getting wet in the rain, it's important to avoid travelling during February, March and May, when the average precipitation in Riga is 2.13 mm, while the months of January, February and March are drier, with an average of 0 mm.