February in Piraeus averages a daily high of 14.9°C with nights around 7.6°C. Expect roughly 6.5 wet days totalling 34.9mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Piraeus is April–May.
Based on HELLINIKON, GR (10.2km), 1995–2024. 20 years of February data.