When flying from California to Turku, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
In terms of precipitation, rainfall in Turku ranges from 0.8 - 3.1 inches per month. August is typically the wettest month, when rainfall can reach 3.1 in. March is typically the driest time to visit Turku when rainfall is around 0.8 in.
If weather is an important factor for your trip to Turku, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 60.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).