If you're looking for summer vibes, the best time to travel to Patras is in June, July and August, when the average temperature reaches 27.41 °C, while August, July and June are the 3 sunniest months of the year, with an average of 114.9 hours.
However, if you prefer colder temperatures, make sure you visit Patras during January, February or December to experience an average of 7.33 °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 April, when the average precipitation in Patras is 5.25 mm, while the months of January, February and March are drier, with an average of 0 mm.